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DSEE 🇹🇿 NECTA ✓ MS available

Biology · Paper 2B · 2007

3 questions

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Questions (3)

Section A

1. 30 marks

Dissect specimen M to display its reproductive system.

  1. Draw a well-labelled diagram showing at least four parts of the reproductive system. (10 mk)
  2. Indicate the position of the kidneys and oviducts/testes. (5 mk)
  3. Identify the organ for gamete production. (2 mk)
  4. Which organ temporarily stores gametes? (2 mk)
  5. Name the organ used to transport gametes. (2 mk)
  6. What is the consequence of cutting the anterior abdominal vein? (3 mk)
  7. Why is water added during dissection? Give two points. (6 mk)

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Section B

2. 10 marks

You are provided with solution Q.

  1. Perform food tests using the provided reagents. (0 mk)
  2. Complete the following table: (4 mk)
  3. State two food items that can give rise to such a solution. (2 mk)
  4. Name the first site of digestion, the juice involved, and the end product. (3 mk)
  5. Mention three roles of the identified food substances. (3 mk)
  6. State one negative health effect of lacking this food substance. (1 mk)

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Section C

3. 10 marks

Observe specimens C, D and E.

  1. List three differences between specimen C and D based on observable features. (6 mk)
  2. Identify two uses of specimen D in daily life. (2 mk)
  3. Observe the lower surface of specimen E and name the structures seen. (1 mk)
  4. State the role of those structures. (1 mk)
  5. Draw specimen D and label five parts. (0 mk)

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