Overview. Chapter 3: Cells and Their Functions. The Cell. Key Terms. Microscopes. Microscopes. Cytology The study of cells
|
|
- Hugh Washington
- 6 years ago
- Views:
Transcription
1 Overview Chapter 3: Cells and Their Functions Key Terms The Cell active transport filtration mitochondria cancer gene mitosis carcinogen hemolysis mutation chromosome hypertonic nucleus cytology hypotonic organelle cytoplasm interphase osmosis diffusion isotonic phagocytosis DNA membrane potential endocytosis micrometer ribosome exocytosis microscope RNA plasma membrane Cytology The study of cells The Cell The basic unit of life Shows life characteristics Organization Metabolism Responsiveness Homeostasis Growth Reproduction Microscopes 1. List three types of microscopes used to study cells. Microscopes Cytology The study of cells Microscope Types of microscopes: Compound light microscope Most common in labs Transmission electron microscope 1 million x Scanning electron microscope 3D, 100,001x Micrometer unit for microscopic measurements Staining cells enables them to be seen 1
2 Figure 3-1 Cilia photographed under three different microscopes. Microscopes Checkpoints 3-1 What characteristics of life does a cell show? 3-2 Name three types of microscopes. Which microscope shows the most internal structure of the cilia? Which shows the cilia in three dimensions? 2. Describe the composition and functions of the plasma membrane. 3. Describe the cytoplasm of the cell, including the name and function of the main organelles. General Cell Organization Plasma membrane Nucleus Cytoplasm Cytosol Organelles Figure 3-2 A generalized animal cell, sectional view. Encloses cell contents Regulates what enters and leaves cell Plasma membrane components Phospholipid bilayer double fat layer Cholesterol strengthens the membrane Proteins: What is attached to the ER to make it look rough? What is the liquid part of the cytoplasm called? 2
3 Figure 3-3 The plasma membrane. Table 3-1 Proteins in the plasma membrane and their functions. Type of Protein Channels Transporters Receptors Enzymes Linkers Cell identity markers Function Pores in membrane that allow passage of specific substances Shuttle substances across membrane Allow for attachment of substances to membrane; used for cell-to-cell signaling Participate in chemical reactions at membrane surface Give structure to membrane and attach cells to other cells Proteins unique to a person s cells; important for immunity Why is the plasma membrane described as a bilayer? (components animation) Membrane potential The difference in electric charge on either side of the plasma membrane Ion concentrations are determined by Channels Pumps Membrane potential allows the plasma membrane to act as a battery. It uses electrical energy to power membrane functions. Figure 3-4 The membrane potential. Movement of Substances Across the Plasma Membrane What large, negatively charged ions contribute to the negative charge along the intracellular membrane? 4. Describe methods by which substances enter and leave cells that do not require cellular energy. 5. Describe methods by which substances enter and leave cells that require cellular energy. 6. Explain what will happen if cells are placed in solutions with concentrations the same as or different from those of the cell fluids. 3
4 Semipermeable only some things get through Selective Permeability Travel across membrane is based on several factors Molecular size, Solubility, Electrical charge Types of travel Passive - Movement that does not require cellular energy Active - Movement that requires cellular energy Movement That Does Not Require Cellular Energy Process Definition Example Diffusion Facilitated diffusion Osmosis Filtration Solute travels across plasma membrane down its concentration gradient Solute diffuses with help of a transporter Solvent travels across plasma membrane down its concentration gradient Mechanical force pushes solute and solvent across plasma membrane Movement of lipidsoluble materials across plasma membrane Movement of glucose into cell Movement of water across plasma membrane Movement of solutes and water out of blood under force of blood pressure Figure 3-6 Diffusion of a solid in a liquid. Figure 3-7 Facilitated diffusion. How would a change in the number of transporters affect a solute s movement by facilitated diffusion? Figure 3-8 A simple demonstration of osmosis. Figure 3-9 Osmotic pressure. What would happen in this system if the solute could pass through the membrane? Osmosis, diffusion What would happen to osmotic pressure if the concentration of solute were increased on side B of this system? 4
5 How Osmosis Affects Cells Another way to think about osmosis is in terms of solute concentration. Low Solute High Solute Osmosis High Water Low Water Solutions and Their Effects on Cells Solution Description Examples Effect on Cells Isotonic Hypotonic Has same solute concentration as cell Has lower solute concentration than cell Hypertonic Has higher solute concentration than cell 0.9% salt; 5% glucose <0.9% salt; <5% glucose >0.9% salt; >5% glucose None Cell takes in water and may burst (lysis) Cell loses water and shrinks (crenation) Water Follows the Salt Figure 3-10 The effect of osmosis on cells. Figure 3-11 Filtration. What would happen to red blood cells in the body if blood lost through injury were replaced with pure water? Movement That Requires Cellular Energy Process Definition Example Active transport Endocytosis Exocytosis Solute moves through plasma membrane against its concentration gradient with help of transporters Large amounts of solute and solvent are transported into cell using vesicles Large amounts of solute and solvent are transported out of the using vesicles Ion movement in nervous system and muscular system Phagocytosis of waste materials by white blood cells Release of neurotransmitters from neurons 5
6 Figure 3-12 Phagocytosis. Figure 3-13 Exocytosis. What organelle would likely help to destroy a particle taken in by phagocytosis? pinocytosis animation Movement of Substances Across the Checkpoints 3-8 What types of movement through the plasma membrane do not require cellular energy? 3-9 What term describes a fluid that is the same concentration as the intracellular fluid? What type of fluid is less concentrated? More concentrated? Protein Synthesis Checkpoints 3-10 What are the building blocks of nucleic acids? 3-11 What category of compounds does DNA code for in the cell? 3-12 What three types of RNA are active in protein synthesis? Cell Division 10. Name and briefly describe the stages in mitosis. Cell Aging As cells multiply, changes occur that may lead to their damage or death. Free radical injury Enzyme injury Gene mutation Slowing cell activity Apoptosis 6
7 Cells and Cancer 11. Discuss the role of cell changes in cancer, and list several cancer risk factors. Cells and Cancer Development of Cancer Genetic mutations may cause uncontrolled cell division. Cells may spread (metastasize), producing cancer. Cancer cells form tumors, crowding out normal cells. Cells and Cancer Cancer Risk Factors Heredity Chemicals Radiation Physical irritation Diet Viruses Case Study 12. Use the case study to discuss the importance of cells to the functioning of the body as a whole. Case Study Jim s lifestyle put him at risk of having a heart attack. Stress Overweight Sedentary High blood pressure During his heart attack, oxygen deficiency damaged Jim s cardiac muscle cells, making them unable to contract, which caused Jim s heart to stop beating. Word Anatomy 13. Show how word parts are used to build words related to cells and their functions. 7
8 Word Anatomy Word Part Meaning Example cyt/o cell Cytology is the study of cells. endo- in, within The endoplasmic reticulum within the cytoplasm. hypo- hyper- exo- deficient, below, beneath above, over, excessive outside, out of, away A hypotonic solution s concentration is lower than cytoplasm s. A hypertonic solution s concentration is higher than cytoplasm s. In exocytosis, the cell moves material out from vesicles. pro- before, in front Prophase is the first stage of mitosis. meta- change During metaphase chromosomes change position and line up across the equator. ana- upward, back, again During anaphase, chromosomes move to opposite sides of the cell. tel/o end Telophase is the last stage of mitosis. 8
(impermeable; freely permeable; selectively permeable)
BIOL 2457 CHAPTER 3 Part 1 SI 1 1. A is the basic structure of life. 2. The gelatinous inside of the cell is called the. 3. Name the structure that increases the cell s surface area? 4. Name the structure
More informationPrinciples of Anatomy and Physiology
Principles of Anatomy and Physiology 14 th Edition CHAPTER 3 The Cellular Level of Organization Introduction The purpose of the chapter is to: 1. Introduce the parts of a cell 2. Discuss the importance
More informationChapter 3: Cells. I. Overview
Chapter 3: Cells I. Overview A. Characteristics 1. Basic structural/functional unit 2. Diameter is too small to see by the naked eye 3. Can be over 3 feet long 4. Trillions of cells in over 200 basic types
More information1.3 - Cells. Chapter 3 - Cells
1.3 - Cells Chapter 3 - Cells Cells Cytology = the study of cells All animal cells have 3 main parts: Nucleus Cell Membrane Cell membrane is semipermeable Cytoplasm (cytosol): where remaining organelles
More informationChapter 3: Cells 3-1
Chapter 3: Cells 3-1 Introduction: A. Human body consists of 75 trillion cells B. About 260 types of cells that vary in shape & size yet have much in common B. Differences in cell shape make different
More informationChapter 3: Cytology. Cytology is the study of cells. Cells are the basic units of life. We are made up of trillions of cells.
PLEASE NOTE THAT THE ITEMS IN THE TEXT THAT ARE HIGHLIGHTED IN YELLOW ARE THOSE THAT ARE TOUCHED ON IN THE READING ASSIGNMENT (PAGES 90-99) AND IN THE LECTURE. ESPECIALLY KNOW THIS MATERIAL FOR THE FIRST
More informationPlasma Membrane Structure and Function
Plasma Membrane Structure and Function The plasma membrane separates the internal environment of the cell from its surroundings. The plasma membrane is a phospholipid bilayer with embedded proteins. The
More informationTitle: Sep 10 7:59 PM (1 of 36) Ch 3 Cell Organelles and Transport
Title: Sep 10 7:59 PM (1 of 36) Ch 3 Cell Organelles and Transport Title: Sep 10 8:02 PM (2 of 36) Cell organelles Nucleus: contains DNA Title: Sep 10 8:03 PM (3 of 36) Nuclear envelope double membrane
More informationConstant Motion of Molecules. Kinetic Theory of Matter Molecules move randomly and bump into each other and other barriers
CELL TRANSPORT Constant Motion of Molecules Kinetic Theory of Matter Molecules move randomly and bump into each other and other barriers Solution homogenous liquid throughout which two or more substances
More informationCh3: Cellular Transport Review KEY
Ch3: Cellular Transport Review KEY OSMOSIS Label the pictures below ( isotonic, hypertonic, or hypotonic environments) hypotonic hypertonic isotonic hypertonic means there is a GREATER concentration of
More information3- Cell Structure and Function How do things move in and out of cells? A Quick Review Taft College Human Physiology
3- Cell Structure and Function How do things move in and out of cells? A Quick Review Taft College Human Physiology How do things move in and out of cells? Things may move through cell membranes by Passive
More informationThe Study of Cells The diversity of the cells of the body The following figure shows the proportion of cell size of the variety of cells in the body
Adapted from Martini Human Anatomy 7th ed. Chapter 2 Foundations: The Cell Introduction There are trillions of cells in the body Cells are the structural building blocks of all plants and animals Cells
More informationUnit 2 Warm Ups. Equilibrium
Unit 2 Warm Ups Equilibrium 1. Cell wall 2. Mitochondria 3. Chloroplast 4. Vesicle 5. Vacuole 6. Rough Endoplasmic Reticulum 7. Smooth Endoplasmic Reticulum 8. Cytoskeleton 9. Lysosomes 10.Cell Membrane
More informationCellular Transport Notes
Cellular Transport Notes About Cell Membranes All cells have a cell membrane Functions: a. Controls what enters and exits the cell to maintain an internal balance called homeostasis b. Provides protection
More informationCell Structure and Function Practice Exam - KEY
Biology 12 Name: Cell Structure and Function Practice Exam - KEY Cell parts and Function 1. Identify each part of the cell indicated and give one role for each structure in the secretion and/or synthesis
More informationCell Structure and Function
C h a p t e r 3 Cell Structure and Function PowerPoint Lecture Slides prepared by Jason LaPres Lone Star College - North Harris 3-1 The study of cells provides the foundation for understanding human physiology
More informationBiology 12 Cell Structure and Function. Typical Animal Cell
Biology 12 Cell Structure and Function Typical Animal Cell Vacuoles: storage of materials and water Golgi body: a series of stacked disk shaped sacs. Repackaging centre stores, modifies, and packages proteins
More informationReview: Cellular Transport
Review: Cellular Transport OSMOSIS 1. Label the pictures below ( isotonic, hypertonic, or hypotonic). The dots represent solutes. A. B. C. 2. means there is a GREATER concentration of solute molecules
More informationChapter 1 Plasma membranes
1 of 5 TEXTBOOK ANSWERS Chapter 1 Plasma membranes Recap 1.1 1 The plasma membrane: keeps internal contents of the cell confined to one area keeps out foreign molecules that damage or destroy the cell
More information1. or is the study of cellular structure and function. 2. What is the purpose and characteristics of the plasma membrane?
Chapter 3 Reading Guide The Cellular Level of Organization Name 1. or is the study of cellular structure and function. Section 3.1 Parts of a Cell 2. What is the purpose and characteristics of the plasma
More informationCell Membrane Diagram
Cell Membrane Diagram Draw a diagram of the cell membrane. Please include (and label): - Phospholipid bilayer (hydrophilic and hydrophobic) Protein channel An ion pump Cholesterol Gylcoproteins* Define
More informationAnatomy Chapter 2 - Cells
Cells Cells are the basic living structural, functional unit of the body Cytology is the branch of science that studies cells The human body has 100 trillion cells 200 different cell types with a variety
More informationCh. 3 CELLS AND TISSUES. Copyright 2010 Pearson Education, Inc.
Ch. 3 CELLS AND TISSUES Generalized Cell All cells: Human cells have three basic parts: Plasma membrane flexible outer boundary Cytoplasm intracellular fluid containing organelles Nucleus control center
More informationFirst discovered in 1665 since then every organism observed with microscopes shows cells
The Cell Cell theory (1838): 1. All organisms are composed of one or more cells, and the life processes of metabolism and heredity occur within these cells. 2. Cells are the smallest living things, the
More information9/20/2016 CHAPTER 7 LECTURE NOTES. Section Objectives. Explain how a cell s plasma membrane functions.
CHAPTER 7 LECTURE NOTES Kennedy biol. 1ab Section Objectives Explain how a cell s plasma membrane functions. Relate the function of the plasma membrane to the fluid mosaic model. All living cells must
More informationHuman Anatomy & Physiology
PowerPoint Lecture Slides prepared by Barbara Heard, Atlantic Cape Community College Ninth Edition Human Anatomy & Physiology C H A P T E R 3 Annie Leibovitz/Contact Press Images 2013 Pearson Education,
More informationHomeostasis, Transport & The Cell Membrane. Chapter 4-2 (pg 73 75) Chapter 5
Homeostasis, Transport & The Cell Membrane Chapter 4-2 (pg 73 75) Chapter 5 Unit 5: Lecture 1 Topic: The Cell Membrane Covers: Chapter 5, pages 95-96 Chapter 4, pages 73-75 The Cell Membrane The chemistry
More informationCells & Transport. Chapter 7.1, 7.2, & 7.4
Cells & Transport Chapter 7.1, 7.2, & 7.4 Do Now How big is a cell? How many cells are we made of? How many cells is the smallest living organism made of? Objectives Describe how cells were discovered
More informationUnit 2 Notes: Cells. What you need to know:
1 Unit 2 Notes: Cells What you need to know: 1. MC.2.B.1: Construct a hierarchy of life from cells to ecosystems. (ex: cell, tissue, organ etc) 2. NS.12.B.4: Relate the development of the cell theory to
More information1 Which of the following is NOT a characteristic of an animal plasma membrane?
1 Which of the following is NOT a characteristic of an animal plasma membrane? A) separates the internal environment of the cell from the external environment B) helps the cell maintain homeostasis C)
More informationPlasma Membrane Function
Plasma Membrane Function Cells have to maintain homeostasis, they do this by controlling what moves across their membranes Structure Double Layer of phospholipids Head (polar) hydrophiliclikes water -
More informationCytoskeleton. Provide shape and support for the cell. Other functions of the cytoskeleton. Nucleolus. Nucleus
Chapter 4: Cell Structure and Function Cytoskeleton The cytoskeleton is a network of fibers that organizes structures and activities in the cell. Microtubules (the largest) Intermediate fibers Microfilaments
More informationCh 2: The Cell. Goals: Anatomy of a typical cell Cell Membrane Discussion of internal structure of a cell with emphasis on the various organelles
Ch 2: The Cell Goals: Anatomy of a typical cell Cell Membrane Discussion of internal structure of a cell with emphasis on the various organelles Developed by John Gallagher, MS, DVM Some Terminology: 1.
More informationMembrane Structure. Membrane Structure. Membranes. Chapter 5
Membranes Chapter 5 Membrane Structure The fluid mosaic model of membrane structure contends that membranes consist of: -phospholipids arranged in a bilayer -globular proteins inserted in the lipid bilayer
More informationThe Cell Membrane. Lecture 3a. Overview: Membranes. What is a membrane? Structure of the cell membrane. Fluid Mosaic Model. Membranes and Transport
Lecture 3a. The Cell Membrane Membranes and Transport Overview: Membranes Structure of cell membranes Functions of cell membranes How things get in and out of cells What is a membrane? Basically, a covering
More informationUnit 2: More on Matter & Energy in Ecosystems. Macromolecules to Organelles to Cells
IN: Unit 2: More on Matter & Energy in Ecosystems Macromolecules to Organelles to Cells Where are cells on the biological scale? Sub-Atomic Particles Atoms Molecules Macromolecules (proteins, lipids, nucleic
More informationLecture Overview. Cell Membrane. Marieb s Human Anatomy and Physiology. Chapter 3 Cell Membranes Movement Across the Cell Membrane Lecture 7
Marieb s Human Anatomy and Physiology Marieb Hoehn Chapter 3 Cell Membranes Movement Across the Cell Membrane Lecture 7 1 The cell membrane Lecture Overview Osmotic pressure and tonicity Movement of substances
More informationCH 7 CELL STRUCTURE AND FUNCTION
1 Review What is a cell Explain What three statements make up the cell theory Infer How did the invention of the microscope help the development of the cell theory 2 Review How do microscopes work Apply
More informationLIFE IS CELLULAR. Cell Theory. Cells Are Small. Prokaryotic Cell 10/4/15. Chapter 7 Cell Structure and Function
Chapter 7 Cell Structure and Function The cell basic unit of life, all living things are made of a cell (unicellular) or more than one cell (multicellular). LIFE IS CELLULAR The invention of the microscope
More informationThe Plasma Membrane. 5.1 The Nature of the Plasma Membrane. Phospholipid Bilayer. The Plasma Membrane
5.1 The Nature of the Plasma Membrane The Plasma Membrane Four principal components in animals Phospholipid bilayer Molecules of cholesterol interspersed within the bilayer. Membrane proteins embedded
More informationEquilibrium when two areas have the same concentration or are filled evenly
Aim: How does the cell membrane function to maintain homeostasis? Do Now: Describe what homeostasis is. Homework: Vocab: Homeostasis, equilibrium, concentration gradient, diffusion, carrier protein, osmosis,
More informationCh. 5 Homeostasis & Cell Transport
Ch. 5 Homeostasis & Cell Transport 5.1 Homeostasis & Permeability Homeostasis ability of cell to maintain balance needed for life To maintain balance: cells must transport needed materials into cells &
More informationChapter Seven. A View of the Cell
Chapter Seven A View of the Cell Cellular Organization Cell Tissue group of cells functioning together. Organ group of tissues functioning together. Organ System group of organs functioning together. Organism
More informationFIGURE A. The phosphate end of the molecule is polar (charged) and hydrophilic (attracted to water).
PLASMA MEMBRANE 1. The plasma membrane is the outermost part of a cell. 2. The main component of the plasma membrane is phospholipids. FIGURE 2.18 A. The phosphate end of the molecule is polar (charged)
More informationNotes Chapter 7 Cell Structure and Function Hooke looked at cork under a simple microscope and found tiny chambers he named cells.
Notes Chapter 7 Cell Structure and Function 7.1 Cell discovery and Theory 1665 Hooke looked at cork under a simple microscope and found tiny chambers he named cells. Cells are the basic structural and
More informationLesson 1. Cell Theory - Statements - Exceptions. Categorizing Cells - Prokaryotes vs Eukaryotes
Lesson 1 Cell Theory - Statements - Exceptions Categorizing Cells - Prokaryotes vs Eukaryotes The Cell Theory The discovery of cells and their structure is linked to the development of the magnifying lenses,
More informationCell Structure and Function
Cell Structure and Function Agre and cells in the news Cells Smallest living unit Most are microscopic Discovery of Cells Robert Hooke (mid-1600s) Observed sliver of cork Saw row of empty boxes Coined
More informationPart 1 Multiple Choice Shade the correct answer on the SCANTRON sheet provided.
Part 1 Multiple Choice Shade the correct answer on the SCANTRON sheet provided. 1. The type of electron microscope that gives 2 dimensional images. a) Scanning b) Condensing c) Transmission d) Multidimensional
More informationThe Cell and Cellular transport
Cell theory (1838): The Cell 1. All organisms are composed of one or more cells, and the life processes of metabolism and heredity occur within these cells. 2. Cells are the smallest living things, the
More informationThe Cell Membrane. Why cells must control materials. Living cells must maintain homeostasis for survival.
The Cell Membrane Why cells must control materials Living cells must maintain homeostasis for survival. The cell membrane is the boundary between the cell and its environment. It is the cell membrane s
More informationThe Cell. Biology 105 Lecture 4 Reading: Chapter 3 (pages 47 62)
The Cell Biology 105 Lecture 4 Reading: Chapter 3 (pages 47 62) Outline I. Prokaryotic vs. Eukaryotic II. Eukaryotic A. Plasma membrane transport across B. Main features of animal cells and their functions
More informationCell Structure and Function Cell Structure and function
Cell Structure and Cell Structure and function Dr Badri Paudel www.badripaudel.com Smallest living unit Most are microscopic Cells Discovery of Cells Robert Hooke (mid-1600s) Observed sliver of cork Saw
More informationCell Membrane-Structure and Function
Cell Membrane-Structure and Function BIO 250 Living things are composed of cells and cell products (extracellular) Cells are the basic unit of structure They are the basic unit of function They vary in
More informationCH 7.2 & 7.4 Biology
CH 7.2 & 7.4 Biology LABEL THE MEMBRANE Phospholipids Cholesterol Peripheral proteins Integral proteins Cytoskeleton Cytoplasm Extracellular fluid Most of the membrane A phospholipid bi-layer makes up
More informationBIOLOGY 12 - Cell Membrane and Cell Wall Function: Chapter Notes
BIOLOGY 12 - Cell Membrane and Cell Wall Function: Chapter Notes The cell membrane is the gateway into the cell, and must allow needed things such as nutrients into the cell without letting them escape.
More informationTransport: Cell Membrane Structure and Function. Biology 12 Chapter 4
Transport: Cell Membrane Structure and Function Biology 12 Chapter 4 FLUID-MOSAIC MODEL OF MEMBRANE STRUCTURE The cell membrane (plasma membrane) is made of two layers of phospholipid molecules (bilayer)
More informationMaintained by plasma membrane controlling what enters & leaves the cell
CELL TRANSPORT AND HOMEOSTASIS Homeostasis Balanced internal condition of cells Also called equilibrium Maintained by plasma membrane controlling what enters & leaves the cell Functions of Plasma Membrane
More informationMovement across the Membrane
Chapter 8. Movement across the Membrane 2003-2004 1 Cell membrane Cells have an inside & an outside Cell membrane is the boundary Can it be an impenetrable boundary? NO! Why not? The cell needs materials
More informationLook at the following images, what are some similarities and differences between the cells?
Look at the following images, what are some similarities and differences between the cells? Name the two different types of cells 1. Prokaryotic Cells 2. Eukaryotic Cells Unit 3: Cells Objective: To
More informationKeystone Biology Remediation A4: Homeostasis and Transport
Keystone Biology Remediation A4: Homeostasis and Transport Assessment Anchors: to describe how the structure of the plasma allows it to function as a regulatory structure and/or protective barrier for
More informationEquilibrium is a condition of balance. Changes in temperature, pressure or concentration can cause a shift in the equilibrium.
Copy into Note Packet and Return to Teacher Cells and Their Environment Section 1: Passive Transport Objectives Relate concentration gradients, diffusion, and equilibrium. Predict the direction of water
More informationCELL BOUNDARIES. Cells create boundaries through: Cell Membranes made of the phospholipid bilayer Cell Walls made of cellulose in plants
CELL BOUNDARIES CELL BOUNDARIES Cells create boundaries through: Cell Membranes made of the phospholipid bilayer Cell Walls made of cellulose in plants TYPES OF MEMBRANES Some substances = too large or
More informationStudy Guide for Biology Chapter 5
Class: Date: Study Guide for Biology Chapter 5 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which of the following led to the discovery of cells? a.
More informationChapter Seven. A View of the Cell
Chapter Seven A View of the Cell Cellular Organization Cell Tissue group of cells functioning together. Organ group of tissues functioning together. Organ System group of organs functioning together. Organism
More informationStructure of a Generalized Cell
A Quick Tour Through A Cell BIO130 Lab 2 Exercise 4 The Cell: Anatomy Structure of a Generalized Cell -plasma membrane -cytoplasm: cytosol organelles -nucleus Play TourOfAnimalCell.mpg Plasma membrane
More informationThe Plasma Membrane - Gateway to the Cell
The Plasma Membrane - Gateway to the Cell 1 Photograph of a Cell Membrane 2 Cell Membrane The cell membrane is flexible and allows a unicellular organism to move 3 Homeostasis Balanced internal condition
More informationThink About it. Prokaryotic v. Eukaryotic Cells. The Discovery of the Cell. The cell theory states: Exploring the Cell 10/10/2016
Think About it What s the smallest part of any living thing that still counts as being alive? Prokaryotic v. Eukaryotic Cells Can we just keep dividing living things into smaller and smaller parts, or
More informationThe Plasma Membrane - Gateway to the Cell
The Plasma Membrane - Gateway to the Cell 1 Photograph of a Cell Membrane 2 Cell Membrane The cell membrane is flexible and allows a unicellular organism to move 3 Homeostasis Balanced internal condition
More informationCell membrane & Transport. Dr. Ali Ebneshahidi Ebneshahidi
Cell membrane & Transport Dr. Ali Ebneshahidi Cell Membrane To enclose organelles and other contents in cytoplasm. To protect the cell. To allow substances into and out of the cell. To have metabolic reactions
More informationChapter 5 Homeostasis and Cell Transport
Chapter 5 Homeostasis and Cell Transport Palabra Palooza! Role #1: The Definer says: The word can be explained as Role #2: The Re-stater says: Then I understand (word) to mean Words: Passive transport
More informationThe Cell Membrane. Also known as the Plasma Membrane
Student Objectives Know the different parts of the cell membrane Understand the role of the cell membrane in cellular transport Understand diffusion and osmosis Determine what will happen to plant and
More informationCell Theory. Cells are the basic unit of life.
3.1 7.1 Cell Theory Cells are the basic unit of life. 3.1 7.1 Cell Theory The cell theory grew out of the work of many scientists Galileo (1610) made the first microscope Hooke (1665) made up the term
More informationChapter 3 Review Assignment
Class: Date: Chapter 3 Review Assignment Multiple Choice 40 MC = 40 Marks Identify the choice that best completes the statement or answers the question. 1. Which of the following organelles produces transport
More informationChapter 4 Organization of the Cell
Chapter 4 Organization of the Cell Cell basic unit of life o Small o Self-sufficient o Self-replicating Cell Theory organisms are composed of cells and all cells come from the division of other cells Cells
More informationPhospholipids. Extracellular fluid. Polar hydrophilic heads. Nonpolar hydrophobic tails. Polar hydrophilic heads. Intracellular fluid (cytosol)
Module 2C Membranes and Cell Transport All cells are surrounded by a plasma membrane. Eukaryotic cells also contain internal membranes and membrane- bound organelles. In this module, we will examine the
More informationModern Cell Theory. Plasma Membrane. Generalized Cell Structures. Cellular Form and Function. Three principle parts of a cell
Cellular Form and Function Concepts of cellular structure Cell surface Membrane transport Cytoplasm Modern Cell Theory All living organisms are composed of cells. the simplest structural and functional
More informationTRANSPORT ACROSS MEMBRANES
Unit 2: Cells, Membranes and Signaling TRANSPORT ACROSS MEMBRANES Chapter 5 Hillis Textbook TYPES OF TRANSPORT ACROSS THE CELL (PLASMA) MEMBRANE: What do you remember? Complete the chart with what you
More informationTransport. Slide 1 of 47. Copyright Pearson Prentice Hall
& Transport 1 of 47 Learning Targets TN Standard CLE 3216.1.3 Explain how materials move into and out of cells. CLE 3216.1.5 Investigate how proteins regulate the internal environment of a cell through
More informationCytology I Study of Cells
Cytology I Study of Cells Biology 20 Which cell type has organelles such as mitochondria, nuclues, Golgi bodies, etc? A) prokaryotic B) eukaryotic C) bacterial D) viral E) none of these Cellular Basis
More information6 functions of membrane proteins integral & peripheral proteins Membrane Junctions
Cells Cells are the structural units of all living organisms ranging from unicellular to multicellular organisms. Biochemical activities of cells are dictated by cell shape and specific subcellular structures.
More informationMovement of Substances in the Cell
Movement of Substances in the Cell The Marble Memories Biology All cells are surrounded by a plasma membrane (also called cell membrane). This membrane regulates the entry and exit of substances into and
More informationCellular Transport. Biology Honors
Cellular Transport Biology Honors Review of Concepts and Introduction to the Current Concepts https://www.youtube.com/watch?v=ptmlvtei 8hw Passive Active No energy Requires / needs energy Passive Transport-
More informationCell Category? Prokaryote
CELLS Cell Category? Prokaryote Prokaryote Eukaryote Cell Category? Cell Type? Cell Category? Cell Type? Endosymbiosis eukaryotic cells were formed from simpler prokaryotes Endo within Symbiosis together
More informationCell Transport. Movement of molecules
Cell Transport Movement of molecules TEKS Students will investigate and explain cellular processes, including homeostasis and transport of molecules Homeostasis The maintaining of a stable body system
More informationBIOLOGY 12 - Cell Membrane and Cell Wall Function: Chapter Notes
BIOLOGY 12 - Cell Membrane and Cell Wall Function: Chapter Notes The cell membrane is the gateway into the cell, and must allow needed things such as nutrients into the cell without letting them escape.
More informationMembranes. Chapter 5
Membranes Chapter 5 Membrane Structure The fluid mosaic model of membrane structure contends that membranes consist of: -phospholipids arranged in a bilayer -globular proteins inserted in the lipid bilayer
More informationCells and Their Environment Chapter 8. Cell Membrane Section 1
Cells and Their Environment Chapter 8 Cell Membrane Section 1 Homeostasis Key Idea: One way that a cell maintains homeostasis is by controlling the movement of substances across the cell membrane. Homeostasis
More informationChapter 8 Cells and Their Environment
Chapter Outline Chapter 8 Cells and Their Environment Section 1: Cell Membrane KEY IDEAS > How does the cell membrane help a cell maintain homeostasis? > How does the cell membrane restrict the exchange
More informationMembrane Structure. Membrane Structure. Membrane Structure. Membranes
Membrane Structure Membranes Chapter 5 The fluid mosaic model of membrane structure contends that membranes consist of: -phospholipids arranged in a bilayer -globular proteins inserted in the lipid bilayer
More informationModern Cell Theory. Plasma Membrane. Generalized Cell Structures. Cellular Form and Function. Three principle parts of a cell
Cellular Form and Function Concepts of cellular structure Cell surface Membrane transport Cytoplasm Modern Cell Theory All living organisms are composed of cells. the simplest structural and functional
More informationCytology. Cell Anatomy. Cell Theory - A good place to start! The generalized cell contains: Cell membrane Cytoplasm. Nucleus. Cytosol Organelles
Cytology The key to every biological problem must finally be sought in the cell, for every living organism is, or at some time has been, a cell. E.B. Wilson, 1925 Cell Theory - A good place to start! Cell
More informationChapter 7: Cells Review Packet Name: 1. endoplasmic reticulum The organelle made up of internal membranes where lipids and proteins are synthesized
Chapter 7: Cells Review Packet Name: Organelles 1. endoplasmic reticulum The organelle made up of internal membranes where lipids and proteins are synthesized 2. Golgi apparatus Enzymes in this apparatus
More informationBIOLOGY 12 - Cell Membrane and Cell Wall Function: Chapter Notes
BIOLOGY 12 - Cell Membrane and Cell Wall Function: Chapter Notes The cell membrane is the gateway into the cell, and must allow needed things such as nutrients into the cell without letting them escape.
More information8.1 Cellular Transport
Ch 8: Cellular Transport and the Cell Cycle 8.1 Cellular Transport Inside This Section... Osmosis Passive vs. Active Transport Transport of Large Particles What is Osmosis? Diffusion of water across a
More information3UNIT. Photosynthesis and. Cellular Respiration. Unit PreQuiz? General Outcomes. Unit 3 Contents. Focussing Questions
3UNIT Photosynthesis and Cellular Respiration General Outcomes In this unit, you will relate photosynthesis to the storage of energy in organic compounds explain the role of cellular respiration in releasing
More informationThe Cell Study Guide, Chapter 2
Part I. Clinical Applications Name: The Cell Study Guide, Chapter 2 Lab Time: 1 1. Johnny lacerated his arm and rushed home to Mom so she could fix it. His mother poured hydrogen peroxide over the area,
More informationCellular Structure and Function. Chapter 7
Cellular Structure and Function. Chapter 7 Cell Discovery and Theory. A cell is the basic structural and functional unit of all living organisms. The human body is made of trillions of cells that are too
More informationMovement Through the Cell Membrane
Movement Through the Cell Membrane Cellular Movement All living organisms rely on diffusion Get oxygen for respiration Removing waste products Transpiration in plants Cellular Movement The cell membrane
More informationOutline. Membrane Structure and Function. Membrane Models Fluid-Mosaic. Chapter 5
Membrane Structure and Function Chapter 5 Membrane Models Fluid-Mosaic Outline Plasma Membrane Structure and Function Protein Functions Plasma Membrane Permeability! Diffusion! Osmosis! Transport Via Carrier
More informationExample - Paramecium contain contractile vacuoles that collect and remove excess water, thereby helping to achieve homeostasis
Homeostasis Process by which organisms maintain a relatively stable internal environment; All organisms have ranges that are tolerated (i.e. ph and temperature) Example - Paramecium contain contractile
More information