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CSEE 🇹🇿 NECTA ✓ MS available

Biology · Paper 1 · 2023

37 questions

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Questions (37)

Section A

1. 1 mark

Which control measure would help a patient diagnosed with diabetes mellitus?

A. Reducing intake of sugary foods
B. Limiting amount of water intake
C. Reducing intake of cholesterol foods
D. Eating enough starch and water
E. Consuming ah igh fat food

Section B

3. 0 marks

Suppose your friends have been diagnosed with indigestion problem. (a) What would be the major possible causes of this problem? Provide three points. (b) Suggest four measures you would recommend to them to avoid the problem in future.

  1. List three major possible causes of indigestion. (3 mk)
  2. What would be the major possible causes of this problem? Provide three points. (0 mk)
  3. Suggest four measures to avoid indigestion in future. (4 mk)
  4. Suggest four measures you would recommend to them to avoid the problem in future. (0 mk)

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4. 0 marks

Suggest six ways to minimize the occurrence of miscarriage to the pregnant woman.

  1. Suggest six ways to minimize the occurrence of miscarriage to the pregnant woman. (6 mk)

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5. 0 marks

(a) Draw a diagram of human body and show the location of the thyroid gland, adrenal gland, pancreas gland and pituitary gland. (b) Explain the role of the two hormones produced by the pancreas gland.

  1. Draw a diagram of the human body and show the location of the thyroid gland, adrenal gland, pancreas gland and pituitary gland. (3 mk)
  2. Draw a diagram of human body and show the location of the thyroid gland, adrenal gland, pancreas gland and pituitary gland. (0 mk)
  3. Explain the role of the two hormones produced by the pancreas gland. (4 mk)
  4. Explain the role of the two hormones produced by the pancreas gland. (0 mk)

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6. 0 marks

(a) Briefly explain the given terms as used in genetics: (i) Sex limited characters. (ii) Sex linked characters. (iii) Sex influenced characters. (b) Differentiate incomplete dominance from codominance.

  1. Briefly explain the given terms as used in genetics: (i) Sex limited characters. (ii) Sex linked characters. (iii) Sex influenced characters. (0 mk)
  2. Differentiate incomplete dominance from codominance. (0 mk)
  3. Briefly explain sex influenced characters. (1 mk)
  4. Differentiate incomplete dominance from codominance. (1 mk)

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7. 0 marks

Briefly explain six factors which affect the rate of physical deterioration of human being.

  1. Explain six factors which affect the rate of physical deterioration of a human being. (6 mk)

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8. 0 marks

(a) Draw a diagram of the reproductive structures of a branch of pine tree and label its two parts. (b) Explain three advantages of the pine trees.

  1. Draw a diagram of the reproductive structures of a branch of pine tree and label its two parts. (0 mk)
  2. Explain three advantages of the pine trees. (0 mk)

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