Title: Oct 12 3:37 PM (1 of 39) Ch 44 Osmoregulation and Excretion
|
|
- Teresa Taylor
- 6 years ago
- Views:
Transcription
1 Title: Oct 12 3:37 PM (1 of 39) Ch 44 Osmoregulation and Excretion
2 Water Balance and Waste Disposal osmoregulation managing water content and solute composition based on movements of solutes excretion of metabolic wastes regulates bathing fluid of cells in excretory organs maintain water balance and dispose of wastes Title: Oct 12 3:38 PM (2 of 39)
3 Excretion process that rids the body of nitrogenous metabolites and other waste products What organic compounds produce nitogenous wastes? Title: Oct 12 3:41 PM (3 of 39)
4 How do organisms balance water gain and loss? osmoconformer being isoosmotic to surroundings will not gain or lose water live in water with consistant osmolarity osmoregulator an animal that must control its internal osmoregularity in hypoosmotic gets rid of water in hyperosmotic gains water Title: Oct 12 3:42 PM (4 of 39)
5 stenohaline animals that cannot tolerate large changes in external osmolarity euryhaline animals that can tolerate large changes ex. salmon Title: Oct 12 5:37 PM (5 of 39)
6 Osmolarity solute concentration expressed as molarity isoosmotic if two solutions separated by a selectively permeable membrane have the same osmolarity When two solutions differ in osmolarity, the one with the greater solute concentration is hyperosmotic and the one with the lower solute concentration is the hypoosmotic. Water flows from hypoosmotic to hyperosmotic. Title: Oct 12 3:58 PM (6 of 39)
7 hypoosmotic to seawater, loses water by osmosis, gains salt by diffusion Title: Oct 12 3:43 PM (7 of 39)
8 Title: Oct 12 3:43 PM (8 of 39) constantly gains water and loses salt
9 anhydrobiosis adaptations for animals that live in water temporaril tardigrades water bears Hydrated 85% water Dehydrated 2% water Title: Oct 12 3:44 PM (9 of 39)
10 Land animals have body coverings that prevent dehydration keratinized skin lose water from skin, urine, feces, respiration have to rehydrate regularly Title: Oct 12 3:46 PM (10 of 39)
11 transport epitheliumhelps regulate solute movements move solutes in specific directions form a barrier at tissue environment boundary in animals arranged in tubes with high surface area ex. Salt glands in marine birds remove excess sodium chloride from blood Title: Oct 12 3:47 PM (11 of 39)
12 So why can't humans drink salt water like a seagull can? bird gets rid of extra salt through a salt gland if humans drink salt water, they need a greater amount of water to excrete the salt load using their kidneys therefore: become dehydrated Title: Oct 12 3:56 PM (12 of 39)
13 Metabolic wastes dissolved in water (except carbon dioxide) nitrogenous wastes (breakdown products of proteins and nucleic acids) ammonia toxic molecule common in aquatic species diffuse easily in invertebrates diffuses through body fish lost as ammonium ions form gills can be excreted directly or as urea must be very dilute in land animals or toxic Title: Oct 12 3:48 PM (13 of 39)
14 Urea used for land animals (mammals, most adult amphibians, marine fish, turtles produced by liver that combines ammonia with carbon dioxide, then carried to excretory system by blood low toxicity (100,000 x less than ammonia) reduces need for water for excretion disadvantage must expend energy to make form ammonia Title: Oct 12 3:49 PM (14 of 39)
15 Uric Acid land snails, insects, birds and many reptiles nontoxic insoluble in water, excreted as semisolid paste advantage if little water is around, but takes lots of energy to produce uric acid is favored for egg layers because it can be stored within the egg without harming the embryo Title: Oct 12 5:42 PM (15 of 39)
16 Title: Oct 12 3:49 PM (16 of 39)
17 Diversity of excretory systems regulate solute movement between internal fluids and the external environment the filtrate produced by the system is from body fluids Based on four processes: filtration reabsorption secretion excretion Title: Oct 12 3:49 PM (17 of 39)
18 Capillary Filtration Reabsorption Secretion Excretion Filtration collects filtrate from blood; water/ solutes forced by blood pressure across selectively permeable membrane Reabsorption transport epithelium reclaims valuable substances from filtrate puts back in body Secretion toxins and ions are extracted from body fluids and added to excretory tube Excretion fitrate (urine) leaves system and body Title: Oct 12 4:06 PM (18 of 39)
19 Excretory systems in other organisms Protonephridia network of dead end tubules connected to external openings flame bulb is the cap end excrete dilute fluid nitrogenous waste (Ex parasitic flatworms); involved in osmoregulation (other flatworms found in flatworms (phylum Platyhelminthes), rotifers, mollusc larvae and lancelets Title: Oct 12 4:13 PM (19 of 39)
20 Title: Oct 12 5:47 PM (20 of 39)
21 Metanephridia consist of tubules that collect coelomic fluid and produce dilute urine for excretion Title: Oct 12 4:19 PM (21 of 39)
22 Malpighian Tubules remove nitrogenous from hemolymph and used in osmoregulation in insects and other terrestrial arthropods Title: Oct 12 5:56 PM (22 of 39)
23 Title: Oct 12 6:00 PM (23 of 39) Kidneys excretory organ for vertebrates
24 Title: Oct 12 6:04 PM (24 of 39) Cross Section of Kidney
25 Title: Oct 12 6:03 PM (25 of 39)
26 only mammals and some birds have loops of Henle In human 85% of nephrons have short loops of Henle and are in renal cortex 15% are juxtamedullary nephrons have loops of Henle that go deep into the renal medulla 1,600L of blood flows through pair of kidneys/day but only 1.5L leaves body as urine Title: Oct 12 6:08 PM (26 of 39)
27 How is blood filtered? 1. blood pressure forces fluid from blood into glomerulus contains salts, glucose, amino acids, vitamins, nitrogenous wastes, water and other small molecules 2. From Bowman's Capsule passes through three regions of nephron proximal tubule loop of Henle diatal tubule Title: Oct 12 6:13 PM (27 of 39)
28 In the proximal tubule: get reabsorption of ions, water and nutrients molecules are transported actively and passively some toxic materials are secreted into the filtrate fitrate volume decreases Title: Oct 12 6:18 PM (28 of 39)
29 In Loop of Henle: Descending part reabsorption of water contiues through aquaporins movement driven by high osmolarity of interstitial fluid (hyperosmotic to filtrate) filtrate becomes more concentrated Title: Oct 12 6:20 PM (29 of 39)
30 Loop of Henle continued: Ascending part salt, not water diffuses from tubule to interstitial fluid filtrate gets more dilute Title: Oct 12 6:23 PM (30 of 39)
31 Distal Tubule: regulates potassium and NaCl concentrations ion movement controls ph level Collecting duct: filtrate goes from medulla to renal pelvis water, salt and some urea is lost filtrate gets more concentrated Title: Oct 12 6:25 PM (31 of 39)
32 Title: Oct 12 6:29 PM (32 of 39) Filtering process
33 Osmolarity of interstitial fluid depends on NaCl and urea as filtrate flows in collecting duct past interstitial fluid of increasing osmolarity, more water moves out = concentrated urine Title: Oct 12 6:31 PM (33 of 39)
34 How do hormones regulate the blood osmolarity? Antidiuretic hormone (ADH) increases water reabsorption in the distal tubule and collecting ducts an increase in osmolarity triggers release of ADH helps conserve water Title: Oct 12 6:39 PM (34 of 39)
35 ADH allows aquaporins to be inserted into the membrane lining the lumen. Aquaporin channels allow water to be reabsorbed from the collecting duct and put back into the body Title: Oct 12 6:42 PM (35 of 39)
36 Mutation in ADH production causes severe dehydration and results in diabetes insipidus Alcohol is a diuretic as it inhibits the release of ADH Title: Oct 12 6:48 PM (36 of 39)
37 How is blood pressure regulated by the kidneys? Renin Angiotensin Aldosterone System (RAAS) 1. Renin is released by the kidney when blood pressure drops 2. Renin cleaves angiotensinogen (plasma protein) into angiotensin II (functions as a hormone) 3.Angiotensin II increases the blood pressure by constricting capillaries; also signals adrenal glands to release aldosterone 4. Aldosterone acts on nephrons' distal tubules makes them reabsorb sodium and water which increases blood volume and pressure Title: Oct 12 6:49 PM (37 of 39)
38 So what if you have high blood pressure? drugs that block angiotensin II are used to treat hypertension inhibit angiotensin converting enzyme (ACE) which catalyzes the 2nd step on production of angiotensin II Title: Oct 12 6:58 PM (38 of 39)
39 So... ADH and RAAS are partners in homeostasis ADH and RAAS both increase water reabsorption, but only RAAS will respond to a decrease in blood volume Another hormone, atrial natriuretic peptide (ANP), opposes the RAAS ANP is released in response to an increase in blood volume and pressure and inhibits the release of renin Title: Oct 12 7:03 PM (39 of 39)
Osmoregulation regulates solute concentrations and balances the gain and loss of water
Ch 44 Osmoregulation & Excretion Osmoregulation regulates solute concentrations and balances the gain and loss of water Freshwater animals show adaptations that reduce water uptake and conserve solutes
More informationOSMOREGULATION AND EXCRETION
1 2 3 4 5 6 OSMOREGULATION AND EXCRETION OSMOREGULATION Process by which animals control their solute concentrations and balance water gain and loss Freshwater animals show adaptations that reduce water
More informationOsmoregulation and Excretion
Chapter 44 Osmoregulation and Excretion PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions from
More informationChapter 44. Osmoregulation and Excretion
Chapter 44 Osmoregulation and Excretion Overview: A Balancing Act Physiological systems of animals operate in a fluid environment Relative concentrations of water and solutes must be maintained within
More informationwater balance water nitrogen chapter 42
water balance chapter 42 water osmoregulation water and dissolved solutes adjusting the composition of internal body fluids in arthropods -- hemolymph in vertebrates -- interstitial fluid transport epithelia
More informationOsmoregulation and Excretion
Osmoregulation and Excretion 1. There are two basic solutions to the problem of balancing water gain with water loss. a. The first, available only to marine animals, is to be an osmoconformer. The concentration
More informationChapter 44. Regulating the Internal Environment. AP Biology
Chapter 44. Regulating the Internal Environment Homeostasis Living in the world organisms had a choice: regulate their internal environment maintain relatively constant internal conditions conform to the
More informationHomeostasis. Thermoregulation. Osmoregulation. Excretion. how organisms regulate their body temperature
Homeostasis the steady-state physiological condition of the body Ability to regulate the internal environment important for proper functioning of cells Thermoregulation Homeostasis how organisms regulate
More informationI. Metabolic Wastes Metabolic Waste:
I. Metabolic Wastes Metabolic Waste: a) Carbon Dioxide: by-product of cellular respiration. b) Water: by-product of cellular respiration & dehydration synthesis reactions. c) Inorganic Salts: by-product
More informationAP Biology. Homeostasis. Chapter 44. Regulating the Internal Environment. Homeostasis
Chapter 44. Regulating the Internal Environment omeostasis Living in the world organisms had a choice: regulate their internal environment maintain relatively constant internal conditions conform to the
More informationBIOLOGY - CLUTCH CH.44 - OSMOREGULATION AND EXCRETION.
!! www.clutchprep.com Osmoregulation regulation of solute balance and water loss to maintain homeostasis of water content Excretion process of eliminating waste from the body, like nitrogenous waste Kidney
More informationOsmoregulation_and_Excretion_p2.notebook June 01, 2017
What water balance problems face organisms? Animals balance water gain and loss in one of two ways: 1. Osmoconformers are isotonic to their surroundings so they do not lose or gain water they usually live
More informationSalt and Water Balance and Nitrogen Excretion
Announcements Exam is in class on WEDNESDAY. Bring a #2 pencil and your UFID. You must come to your registered class section (except those with DRC accommodations). Office hours Mon 1-3 pm. Teaching evals:
More informationChapter 16. Urinary System and Thermoregulation THERMOREGULATION. Homeostasis
Homeostasis Chapter 16 Urinary System and Thermoregulation! Homeostasis Maintenance of steady internal conditions despite fluctuations in the external environment! Examples of homeostasis Thermoregulation
More informationRegulating the Internal Environment. AP Biology
Regulating the Internal Environment 2006-2007 Conformers vs. Regulators Two evolutionary paths for organisms regulate internal environment maintain relatively constant internal conditions conform to external
More informationCh. 44 Regulating the Internal Environment
Ch. 44 Regulating the Internal Environment 2006-2007 Conformers vs. Regulators Two evolutionary paths for organisms regulate internal environment maintain relatively constant internal conditions conform
More informationOne Minute Movies: Molecular Action at the Nephron Joy Killough / Westwood High School / Austin,TX
One Minute Movies: Molecular Action at the Nephron Joy Killough / Westwood High School / Austin,TX To prepare your nephron model: ( A nephron is a tubule and the glomerulus. There are about a million of
More informationThe Excretory System. Biology 20
The Excretory System Biology 20 Introduction Follow along on page 376 What dangers exist if your body is unable to regulate the fluid balance of your tissues? What challenged would the body have to respond
More informationOsmoregulation and the Excretory System
Honors Biology Study Guide Chapter 25.4 25.10 Name Osmoregulation and the Excretory System FUNCTIONS OF THE EXCRETORY SYSTEM OSMOREGULATION Freshwater: Marine: Land Animals: Sources of Nitrogenous Wastes?
More informationNOTES: CH 44 Regulating the Internal Environment (Homeostasis & The Urinary System)
NOTES: CH 44 Regulating the Internal Environment (Homeostasis & The Urinary System) HOMEOSTASIS **Recall HOMEOSTASIS is the steady-state physiological condition of the body. It includes: 1) Thermoregulation:
More informationExcretion Chapter 29. The Mammalian Excretory System consists of. The Kidney. The Nephron: the basic unit of the kidney.
Excretion Chapter 29 The Mammalian Excretory System consists of The Kidney 1. Vertebrate kidneys perform A. Ion balance B. Osmotic balance C. Blood pressure D. ph balance E. Excretion F. Hormone production
More informationPARTS OF THE URINARY SYSTEM
EXCRETORY SYSTEM Excretory System How does the excretory system maintain homeostasis? It regulates heat, water, salt, acid-base concentrations and metabolite concentrations 1 ORGANS OF EXCRETION Skin and
More informationExcretion and Water Balance
Excretion and Water Balance 1. Osmoregulation (water balance) a. Most marine invertebrates are osmoconformers in which the concentration of solutes in their body fluid is equal to that of their environment.
More informationFrom Blood Filtrate to Urine: A Closer Look
Blood Vessels Associated with the Nephrons Each nephron supplied with blood by an afferent arteriole branch of renal artery divides into glomerular capillaries capillaries converge as they leave glomerulus
More informationChapter 10 EXCRETION
Chapter 10 EXCRETION Control of Body Temperature and Water Balance Control of Body Temperature and Water Balance as a part of homeostasis Homeostasis means Maintenance of steady internal conditions despite
More informationYour Goal. Animal s Urinary and Osmoregulatory systems. Paragraph 1: Introduction Goal introduce the paper. Paragraph 1: Introduction
Your Goal Animal s Urinary and Osmoregulatory systems l Be able to tell the story of kidney evolution as an essay. Maintenance Introduction Goal introduce the paper l Homeostasis is the of Maintenance
More informationApril 08, biology 2201 ch 11.3 excretion.notebook. Biology The Excretory System. Apr 13 9:14 PM EXCRETORY SYSTEM.
Biology 2201 11.3 The Excretory System EXCRETORY SYSTEM 1 Excretory System How does the excretory system maintain homeostasis? It regulates heat, water, salt, acid base concentrations and metabolite concentrations
More informationOsmotic Regulation and the Urinary System. Chapter 50
Osmotic Regulation and the Urinary System Chapter 50 Challenge Questions Indicate the areas of the nephron that the following hormones target, and describe when and how the hormones elicit their actions.
More informationStudy Exercise #2: Osmoregulation & Kidney Function
Bio 6A/ Bruce Heyer NAME: Study Exercise #2: Osmoregulation & Kidney Function Some questions may have more than one correct answer. Mark all correct answers. You may use books or notes and discuss answers
More information12/7/10. Excretory System. The basic function of the excretory system is to regulate the volume and composition of body fluids by:
Excretory System The basic function of the excretory system is to regulate the volume and composition of body fluids by: o o removing wastes returning needed substances to the body for reuse Body systems
More informationChapter 44: Osmoregulation and Excretion
Name Period The steady-state physiological condition that organisms must maintain is termed homeostasis. Osmoregulation and excretion are frequently cited examples of homeostasis and are the central ideas
More informationOsmoregulation. 19 th March 2012
Osmoregulation 19 th March 2012 1 Outline Body Fluid Regulation Aquatic Animals Marine Bony Fish Freshwater Bony Fish Terrestrial Animals Nitrogenous Waste Products Organs of Excretion Urinary System in
More informationBasic mechanisms of Kidney function
Excretion Basic mechanisms of Kidney function Urine formation in Amphibians Urine formation in Mammals Urine formation in Insects Nitrogen balance Kidneys The most fundamental function of kidneys) is to
More informationOsmoregulation and Excretion
Chapter 44 Osmoregulation and Excretion Lecture Outline Overview: A Balancing Act The wandering albatross, Diomedea exulans, remains at sea all year long, drinking only seawater. In surviving without fresh
More informationHomeostasis. Homeostasis refers to maintaining internal stability within an organism and returning to a particular stable state after
Homeostasis Homeostasis Homeostasis refers to maintaining internal stability within an organism and returning to a particular stable state after a fluctuation. Homeostasis Changes to the internal environment
More informationOsmoregulation and Excretion
Animal Life and Excretion Harder for multicellular organisms Internal circulation Coordination, information transfer Structural maintenance Movement Maintenance of homeostatic internal environment 15 July
More informationNephron Anatomy Nephron Anatomy
Kidney Functions: (Eckert 14-17) Mammalian Kidney -Paired -1% body mass -20% blood flow (Eckert 14-17) -Osmoregulation -Blood volume regulation -Maintain proper ion concentrations -Dispose of metabolic
More informationExcretory System. Biology 2201
Excretory System Biology 2201 Excretory System How does the excretory system maintain homeostasis? It regulates: Body heat Water-salt concentrations Acid-base concentrations Metabolite concentrations ORGANS
More informationExcretory System. Excretory System
Excretory System Biology 2201 Excretory System How does the excretory system maintain homeostasis? It regulates: Body heat Water-salt concentrations Acid-base concentrations Metabolite concentrations 1
More informationRenal System and Excretion
Renal System and Excretion Biology 105 Lecture 19 Chapter 16 Outline Renal System I. Functions II. Organs of the renal system III. Kidneys 1. Structure 2. Function IV. Nephron 1. Structure 2. Function
More informationOsmoregulation & Excretion, Part 1 Lecture 16 Winter 2014
Osmoregulation & Excretion, Part 1 Lecture 16 Winter 2014 Homeostasis & Osmoregulation 1 Homeostasis The maintenance of a relatively constant chemical and physical environment within an organism Osmoregulation
More informationSHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
AP Exam Chapters 44 Osmosregulation and 45 Hormones and the Endocrine System Name SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Use the following structural
More informationNovember 30, 2016 & URINE FORMATION
& URINE FORMATION REVIEW! Urinary/Renal System 200 litres of blood are filtered daily by the kidneys Usable material: reabsorbed back into blood Waste: drained into the bladder away from the heart to the
More informationWHY DO WE NEED AN EXCRETORY SYSTEM? Function: To eliminate waste To maintain water and salt balance To maintain blood pressure
EXCRETORY SYSTEM WHY DO WE NEED AN EXCRETORY SYSTEM? Function: To eliminate waste To maintain water and salt balance To maintain blood pressure These wastes include: Carbon dioxide Mostly through breathing
More informationWater Balance, Thermoregulation and Excretion
Water Balance, Thermoregulation and Excretion These three components of homeostasis are closely related. Evaporative loss of water (sweating) is a key means of thermoregulation. You can t afford to lose
More informationVertebrates possess kidneys: internal organs which are vital to ion and water balance and excretion.
The Kidney Vertebrates possess kidneys: internal organs which are vital to ion and water balance and excretion. The kidney has 6 roles in the maintenance of homeostasis. 6 Main Functions 1. Ion Balance
More informationEXCRETION IN HUMANS 31 JULY 2013
EXCRETION IN HUMANS 31 JULY 2013 Lesson Description In this lesson we: Discuss organs of excretion Look at the structure of the urinary system Look at the structure and functioning of the kidney Discuss
More informationNephron Structure inside Kidney:
In-Depth on Kidney Nephron Structure inside Kidney: - Each nephron has two capillary regions in close proximity to the nephron tubule, the first capillary bed for fluid exchange is called the glomerulus,
More informationNephron Function and Urine Formation. Ms. Kula December 1, 2014 Biology 30S
Nephron Function and Urine Formation Ms. Kula December 1, 2014 Biology 30S The Role of the Nephron In order for the body to properly function and maintain homeostasis, the amount of dissolved substances
More informationOutline Urinary System. Urinary System and Excretion. Urine. Urinary System. I. Function II. Organs of the urinary system
Outline Urinary System Urinary System and Excretion Bio105 Chapter 16 Renal will be on the Final only. I. Function II. Organs of the urinary system A. Kidneys 1. Function 2. Structure III. Disorders of
More informationUrinary System and Excretion. Bio105 Lecture 20 Chapter 16
Urinary System and Excretion Bio105 Lecture 20 Chapter 16 1 Outline Urinary System I. Function II. Organs of the urinary system A. Kidneys 1. Function 2. Structure III. Disorders of the urinary system
More information1. a)label the parts indicated above and give one function for structures Y and Z
Excretory System 1 1. Excretory System a)label the parts indicated above and give one function for structures Y and Z W- renal cortex - X- renal medulla Y- renal pelvis collecting center of urine and then
More informationStructures of the Excretory System include: ü Skin ü Lung ü Liver ü Kidneys ü Ureter ü Urinary Bladder ü Urethra
Excretory System Structures of the Excretory System include: ü Skin ü Lung ü Liver ü Kidneys ü Ureter ü Urinary Bladder ü Urethra Function of the Excretory System The function of the excretory system is
More informationClass XI - Biology Excretory Products and their Elimination
Class XI - Biology Excretory Products and their Elimination MULTIPLE CHOICE QUESTIONS 1. The following substances are the excretory products in animals. Choose the least toxic form among them? a. Urea
More informationBody Fluid Regulation and Excretion. Chapter 36
Body Fluid Regulation and Excretion Chapter 36 Excretion The excretory system monitors the concentration of body fluids and removes harmful or waste substances from the body Water, nutrients and minerals
More informationUse the following diagram to answer the next question. 1. In the diagram above, pressure filtration occurs in a. W b. X c. Y d. Z
Part A: Multiple Choice Questions Value: 32 Marks Suggested time: 40 minutes Instructions: For each question select the best answer and record your choice on the Scantron card provided. Using an HB pencil,
More informationRefer to the figure below, a diagram of a renal tubule, to answer the following questions.
1. The digestion and utilization of which nutrient creates the greatest need for osmoregulation by the kidneys? a. protein b. starch c. fat d. oil e. cellulose 2. Which of the following is true of urea?
More information014 Chapter 14 Created: 9:25:14 PM CST
014 Chapter 14 Created: 9:25:14 PM CST Student: 1. Functions of the kidneys include A. the regulation of body salt and water balance. B. hydrogen ion homeostasis. C. the regulation of blood glucose concentration.
More information2) This is a Point and Click question. You must click on the required structure.
Class: A&P2-1 Description: Test: Excretory Test Points: 144 Test Number: 28379 Printed: 31-March-10 12:03 1) This is a Point and Click question. You must click on the required structure. Click on the Bowman's
More informationOsmoregulation and Renal Function
1 Bio 236 Lab: Osmoregulation and Renal Function Fig. 1: Kidney Anatomy Fig. 2: Renal Nephron The kidneys are paired structures that lie within the posterior abdominal cavity close to the spine. Each kidney
More informationNutrition, Osmoregulation & Excretion (Reference- chapters 41, 44)
Nutrition, Osmoregulation & Excretion (Reference- chapters 41, 44) The Need to Feed Food is taken in, taken apart, and taken up in the process of animal nutrition In general, animals fall into three categories
More information1.&Glomerular/Pressure&Filtration&
Urine&Formation& Overall&Process&! Urine gets rid of wastes (NH 3, urea, uric acid, creatinine) and other substances (vitamins, penicillin, histamines) found in excess in the blood!! blood is filtered
More informationOutline Urinary System
Urinary System and Excretion Bio105 Lecture Packet 20 Chapter 16 Outline Urinary System I. Function II. Organs of the urinary system A. Kidneys 1. Function 2. Structure B. Urine formation 1. Hormonal regulation
More informationHill et al. 2004, Fig. 27.6
Lecture 25, 15 November 2005 Osmoregulation (Chapters 25-28) Vertebrate Physiology ECOL 437 (aka MCB 437, VetSci 437) University of Arizona Fall 2005 1. Osmoregulation 2. Kidney Function Text: Chapters
More informationFifth Year Biology. Excretion. Miss Rochford
Fifth Year Biology Excretion Miss Rochford In this Topic Excretion in plants Excretion and homeostasis Skin Organs of excretion Urinary system Kidneys Nephron Control of urine volume Characteristics of
More informationEXCRETION QUESTIONS. Use the following information to answer the next two questions.
EXCRETION QUESTIONS Use the following information to answer the next two questions. 1. Filtration occurs at the area labeled A. V B. X C. Y D. Z 2. The antidiuretic hormone (vasopressin) acts on the area
More informationCh17-18 Urinary System
Ch17-18 Urinary System Main Function: Filter the blood Other Functions: maintain purity and consistency of internal fluids eliminates nitrogenous wastes, toxins, and drugs from the body regulates blood
More informationSunday, July 17, 2011 URINARY SYSTEM
URINARY SYSTEM URINARY SYSTEM Let s take a look at the anatomy first! KIDNEYS: are complex reprocessing centers where blood is filtered through and waste products are removed. Wastes and extra water become
More informationorgans of the urinary system
organs of the urinary system Kidneys (2) bean-shaped, fist-sized organ where urine is formed. Lie on either sides of the vertebral column, in a depression beneath peritoneum and protected by lower ribs
More informationChapter 12. Excretion and the Interaction of Systems
Chapter 12 Excretion and the Interaction of Systems 1 2 Goals for This Chapter 1. Identify the main structures and functions of the human excretory system 2. Explain the function of the nephron 3. Describe
More informationExcretion and Water Balance
Excretion and Water Balance In the body, water is found in three areas, or compartments: Plasma, the liquid portion of the blood without the blood cells, makes up about 7 percent of body fluid. The intercellular
More informationKidneys and Homeostasis
16 The Urinary System The Urinary System OUTLINE: Eliminating Waste Components of the Urinary System Kidneys and Homeostasis Urination Urinary Tract Infections Eliminating Waste Excretion Elimination of
More informationExcretion and Waste Management. Biology 30S - Miss Paslawski
Excretion and Waste Management Biology 30S - Miss Paslawski Lesson 1 Waste Products and Organs 2 3 Excretion Excretion: Process by which dissolved metabolic wastes are separated from body fluids and removed
More informationUrinary System Organization. Urinary System Organization. The Kidneys. The Components of the Urinary System
Urinary System Organization The Golden Rule: The Job of The Urinary System is to Maintain the Composition and Volume of ECF remember this & all else will fall in place! Functions of the Urinary System
More informationosmoregulation mechanisms in gills, salt glands, and kidneys
Ionic & Osmotic Homeostasis osmoregulation mechanisms in gills, salt glands, and kidneys extracellular intracellular 22 23 Salt Secretion: recycle Figure in Box 26.2 Hill et al. 2004 active Down electrochemical
More informationKeywords (reading p ) Ammonia toxicity Urea Uric acid Osmoconformer Osmoregulator Passive transport Facilitated diffusion Active transport
Controlling the Internal Environment II: Salt and water balance Keywords (reading p. 936-949) Ammonia toxicity Urea Uric acid Osmoconformer Osmoregulator Passive transport Facilitated diffusion Active
More informationExcretory System 1. a)label the parts indicated above and give one function for structures Y and Z
Excretory System 1 1. Excretory System a)label the parts indicated above and give one function for structures Y and Z W- X- Y- Z- b) Which of the following is not a function of the organ shown? A. to produce
More informationCHAPTER 58: MAINTAINING THE INTERNAL ENVIRONMENT
CHAPTER 58: MAINTAINING THE INTERNAL ENVIRONMENT CHAPTER SYNOPSIS The cell specialization found in complex vertebrates like humans requires extensive integrated control systems. These homeostatic processes
More informationThe principal functions of the kidneys
Renal physiology The principal functions of the kidneys Formation and excretion of urine Excretion of waste products, drugs, and toxins Regulation of body water and mineral content of the body Maintenance
More informationBCH 450 Biochemistry of Specialized Tissues
BCH 450 Biochemistry of Specialized Tissues VII. Renal Structure, Function & Regulation Kidney Function 1. Regulate Extracellular fluid (ECF) (plasma and interstitial fluid) through formation of urine.
More informationWhat is excretion? Excretion is the removal of metabolic waste from the body.
Excretion What is excretion? Excretion is the removal of metabolic waste from the body. Excretion in Plants Plants produce very little waste products. Plants lose oxygen and water vapour through the stomata.
More informationClass XI Chapter 19 Excretory Products and their Elimination Biology
Class XI Chapter 19 Excretory Products and their Elimination Biology Question 1: Define Glomerular Filtration Rate (GFR) Glomerular filtration rate is the amount of glomerular filtrate formed in all the
More informationHuman Urogenital System 26-1
Human Urogenital System 26-1 Urogenital System Functions Filtering of blood, Removal of wastes and metabolites Regulation of blood volume and composition concentration of blood solutes ph of extracellular
More informationA. Correct! Flushing acids from the system will assist in re-establishing the acid-base equilibrium in the blood.
OAT Biology - Problem Drill 16: The Urinary System Question No. 1 of 10 1. Which of the following would solve a drop in blood ph? Question #01 (A) Decreased retention of acids. (B) Increased excretion
More informationQuestions? Homework due in lab 6. PreLab #6 HW 15 & 16 (follow directions, 6 points!)
Questions? Homework due in lab 6 PreLab #6 HW 15 & 16 (follow directions, 6 points!) Part 3 Variations in Urine Formation Composition varies Fluid volume Solute concentration Variations in Urine Formation
More informationNamma Kalvi NEW CHALLENGE TUITION CENTRE 11 TH BIO-ZOOLOGY
Definition: Namma Kalvi NEW CHALLENGE TUITION CENTRE 11 TH BIO-ZOOLOGY 2018-19 UNIT- 3 EXCRETION Excretion is a process by which the unwanted nitrogenous waste materials are collected and eliminated from
More informationBIOLOGY. CONCEPTS & CONNECTIONS Fourth Edition. Neil A. Campbell Jane B. Reece Lawrence G. Mitchell Martha R. Taylor
BIOLOGY CONCEPTS & CONNECTIONS Fourth Edition Neil A. Campbell Jane B. Reece Lawrence G. Mitchell Martha R. Taylor CHAPTER 25 Control of the Internal Environment Modules 25.1 25.4 From PowerPoint Lectures
More informationA&P 2 CANALE T H E U R I N A R Y S Y S T E M
A&P 2 CANALE T H E U R I N A R Y S Y S T E M URINARY SYSTEM CONTRIBUTION TO HOMEOSTASIS Regulates body water levels Excess water taken in is excreted Output varies from 2-1/2 liter/day to 1 liter/hour
More informationRENAL PHYSIOLOGY. Physiology Unit 4
RENAL PHYSIOLOGY Physiology Unit 4 Renal Functions Primary Function is to regulate the chemistry of plasma through urine formation Additional Functions Regulate concentration of waste products Regulate
More informationBIOL 2402 Fluid/Electrolyte Regulation
Dr. Chris Doumen Collin County Community College BIOL 2402 Fluid/Electrolyte Regulation 1 Body Water Content On average, we are 50-60 % water For a 70 kg male = 40 liters water This water is divided into
More informationChapter 32 Excretion
Chapter 32 Excretion 3.4 Learning Objectives 3.4.6 The Excretory System in Humans 1. Role of the excretory system in homeostasis. 2. Importance of temperature regulation within the body. 3. Outline the
More informationCONTROLLING THE INTERNAL ENVIRONMENT
AP BIOLOGY ANIMAL FORM & FUNCTION ACTIVITY #5 NAME DATE HOUR CONTROLLING THE INTERNAL ENVIRONMENT KIDNEY AND NEPHRON NEPHRON FUNCTIONS Animal Form & Function Activity #5 page 1 NEPHRON STRUCTURE NEPHRON
More information28/04/2013 LEARNING OUTCOME C13 URINARY SYSTEM STUDENT ACHIEVEMENT INDICATORS STUDENT ACHIEVEMENT INDICATORS URINARY SYSTEM & EXCRETION
LEARNING OUTCOME C13 Analyse the functional interrelationships of the structures of the urinary system Learning Outcome C13 URINARY SYSTEM STUDENT ACHIEVEMENT INDICATORS Students who have fully met this
More informationHuman Physiology - Problem Drill 17: The Kidneys and Nephronal Physiology
Human Physiology - Problem Drill 17: The Kidneys and Nephronal Physiology Question No. 1 of 10 Instructions: (1) Read the problem statement and answer choices carefully, (2) Work the problems on paper
More informationBIPN100 F15 Human Physiology (Kristan) Lecture 18: Endocrine control of renal function. p. 1
BIPN100 F15 Human Physiology (Kristan) Lecture 18: Endocrine control of renal function. p. 1 Terms you should understand by the end of this section: diuresis, antidiuresis, osmoreceptors, atrial stretch
More informationChapter 19 The Urinary System Fluid and Electrolyte Balance
Chapter 19 The Urinary System Fluid and Electrolyte Balance Chapter Outline The Concept of Balance Water Balance Sodium Balance Potassium Balance Calcium Balance Interactions between Fluid and Electrolyte
More informationThe Urinary System. BIOLOGY OF HUMANS Concepts, Applications, and Issues. Judith Goodenough Betty McGuire
BIOLOGY OF HUMANS Concepts, Applications, and Issues Fifth Edition Judith Goodenough Betty McGuire 16 The Urinary System Lecture Presentation Anne Gasc Hawaii Pacific University and University of Hawaii
More informationOsmoregulation and Excretion
44 smoregulation and Excretion KEY CNCEPTS Figure 44.1 How does an albatross drink salt water without ill effect? 44.1 smoregulation balances the uptake and loss of water and solutes 44.2 An animal s nitrogenous
More informationChapter 13 The Urinary System
Biology 12 Name: Urinary System Per: Date: Chapter 13 The Urinary System Complete using BC Biology 12, page 408-435 13.1 The Urinary System pages 412-413 1. As the kidneys produce urine, they carry out
More informationRefer to the figure below, a diagram of a renal tubule, to answer the following questions.
1. The digestion and utilization of which nutrient creates the greatest need for osmoregulation by the kidneys? a. protein b. starch c. Fat d. Oil e. cellulose 2. Which of the following is true of urea?
More information