1. A2 OCR Biology
UNIT 1 – Module 2
Excretion – Revision Quiz
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2. 1. Define the term Excretion (2)
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2. What are the main two substances to be excreted by humans (2)
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3. Define the term deamination (1)
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4. What can excess carbon dioxide in the blood cause (1)
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5. Write the chemical equation for the formation of urea from
ammonia (4)
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6. What is the scientific name for liver cells? (1)
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7. Name the two blood supplies to the liver (2)
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3. 8. What is the function of Kupffer cells (1)
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9. What is the name of the enzyme used to initially break down
alcohol in the liver? (1)
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10.What happens to the acetyl coenzyme A after it has been
produced from the breakdown of Ethanol in the liver? (1)
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11.Name the four parts of the Nephron that occur after the capsule
(4)
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12.How much percentage of the total filtrate gets reabsorbed in the
PCT? (1)
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13.Name two things that are not filtered out in the glomerulus (2)
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4. 14.What are the specialised epithelial cells in the Bowman’s capsule
called? (1)
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15.Name two specialisations of the cells that line the PCT that help
with reabsorption (2)
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16.What word is used to describe the control of water potential in
the blood? (1)
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17.Which limb of the loop of henle is impermeable to water? (1)
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18.By what process does water move out of the descending limb? (1)
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19.What part of the brain monitors water potential of the blood? (1)
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20.What type of cell manufactures and releases ADH? (1)
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21.Where is ADH stored? (1)
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22.How does ADH affect the collecting duct (2)
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5. 23.Name the two types of dialysis (2)
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24.In a pregnancy test, which hormone will give a positive result? (1)
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25.Give two common causes of kidney failure (2)
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26.Label the diagram of the kidney (6)
1.................................................... 4............................................
2.................................................... 5............................................
3.................................................... 6............................................

6. 27.Label the diagram of the liver (5)
1. ........................................................................................................
2. ........................................................................................................
3. ........................................................................................................
4. ........................................................................................................
5. ........................................................................................................
END OF TEST