TKheory Section: [Total 16 Marks]

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term excretion. [] (b) Fig.. shows a section through a kidney. (i) Fig.

1 Bloomfield Hall School Test (Unit 0-) Name :... Pa: Biolog y Date :... Class: FIV Time Allowed: 0Minutes Maximum Marks: TKheory Section: [Total 6 Marks] (a) Define the term excretion. [] (b) Fig.. shows a section through a kidney. (i) Fig.. Using label lines and the letters given, label the following on Fig... F where filtration occurs, R the renal artery, U where urine passes to the bladder. []

2 (ii) Describe the process of filtration in the kidney. [] (iii) Name the processes resulting in the reabsorption of. glucose,. water. [] [Total: ] (a) Carbon dioxide is a product of aerobic respiration. Describe how you could identify carbon dioxide in expired air. [] (b) Some organisms respire aerobically and anaerobically. (i) Write a word equation for anaerobic respiration in human muscle. (ii) Describe how anaerobic respiration of yeast helps in the preparation of bread dough. [] [] [Total: ]

3 MCQ SECTION: [Total 9 Marks] The diagram shows a nephron from a kidney. glomerulus Bowman's capsule X distal convoluted tubule proximal convoluted tubule Y Z collecting duct loop of Henle capillary What happens at X, Y and Z? X Y Z A filtration reabsorption of water reabsorption of glucose B filtration selective reabsorption reabsorption of water C reabsorption of water filtration selective reabsorption D reabsorption of water selective reabsorption filtration The graph shows the changes in blood sugar concentration during iods of rest and exercise. high blood N sugar concentration M low rest light time rest exercise Which secretion causes the change in blood sugar concentration between time M and N? A glucagon from the pancreas C glycogen from the liver B glucose from the pancreas D insulin from the pancreas

4 Which graph shows the breathing rate of a student who, from resting, runs for 0 s to catch a bus, sits on the bus for 0 s and then runs 0 s to school? A B s s C D s Which can contract to help breathing out? A diaphragm fibres C external intercostal muscles B diaphragm muscles D internal intercostal muscles What would be absent from the glomerular filtrate in the kidney? A glucose C salts B protein D urea What changes cause inspiration (breathing in) to take place? s diaphragm muscle volume of thorax pressure in thorax A contracts decreases increases B contracts increases decreases C relaxes decreases increases D relaxes increases decreases 7 Which change occurs in the liver to lower the blood sugar level? A glucose to glycogen C glycogen to glucose B glucose to starch D starch to glucose

5 8 A student breathes normally, then takes the deepest possible breath in and then breathes out as much as possible before resuming normal breathing. The graph shows the volume of air breathed into and out of the lungs of this student. 6 volume of air in lungs / dm time / seconds What is the vital capacity of the lungs? A 0. dm B. dm C.0 dm D.0 dm The diagram shows a capillary network near the surface of the skin. capillary network muscle X from artery to vein What happens if muscle X relaxes? A The body temature increases. C More sweating will occur from the skin. B A greater heat loss occurs from the body. D MCQ Answer Sheet Less shivering will occur by the muscles. A B C D 6 A B C D A B C D 7 A B C D A B C D 8 A B C D A B C D 9 A B C D A B C D

Use 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

Use 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,