Reproduction in humans — KCSE Biology

KCSE Biology · 76 practice questions · 3 syllabus objectives

28 easy33 medium15 hard

What You'll Learn

Key learning outcomes for this topic, aligned to the KNEC KCSE syllabus.

Draw and label the male and female reproductive systems

Describe the menstrual cycle and fertilisation

Reproduction in humans

Sample Questions

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1
easySHORT ANSWER6 marks

Breastfeeding plays a crucial role in the early development of infants and offers significant advantages to both the newborn and the mother. Understanding these benefits is essential for promoting healthy practices in child-rearing. (a) State three benefits of breastfeeding to the newborn baby. (3 marks) (b) State one benefit of breastfeeding to the mother. (1 mark) (c) Name the first milk produced after birth and state why it is important. (2 marks)

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Part (a) — 6 marks
Breast milk contains antibodies that protect the baby from infections (passive immunity) (1 mk)
It provides complete, balanced nutrition suited to the baby's needs (proteins, fats, carbohydrates, vitamins) (1 mk)
It is sterile (free from contamination) and at the right temperature / promotes bonding between mother and baby (1 mk)
2
easySHORT ANSWER4 marks

During the course of human gestation, various protective and supportive mechanisms play crucial roles in ensuring the development of the fetus. Understanding these mechanisms is essential for comprehending the complexities of prenatal life. (a) State three roles of the amniotic fluid during pregnancy. (3 marks) (b) Name the membrane that encloses the amniotic fluid. (1 mark)

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Part (a) — 4 marks
Acts as a shock absorber — cushions the foetus against mechanical injury/physical damage (1 mk)
Maintains a constant temperature around the foetus (thermal insulation) (1 mk)
Allows the foetus to move freely and develop without restriction / prevents the foetus from sticking to the amnion (1 mk)
3
easySHORT ANSWER2 marks

Define the following terms as used in human reproduction: (a) Fertilisation (b) Implantation.

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Part (a) — 2 marks
Correct definition of Fertilisation (1 mk)
4

The human reproductive system plays a crucial role in the continuation of species, involving various organs that perform specific functions. Understanding these functions is essential for comprehending the complexities of human reproduction. (a) State two functions of the vagina in the reproductive process. (2 marks) (b) State the function of the uterus (womb) in reproduction. (2 marks)

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