Question 8
- Explain the following factors in relation to courtship:
- genotype;
- compatibility;
- partner’s background.[6 marks]
- Name four enzymes present in the small intestine. [4 marks]
- Outline five characteristic behaviours of infants. [5 marks]
- State five functions of the female reproductive system. [5 marks]
Observation
Many candidates could not explain the factors in relation to courtship, instead, they were only defining the terms.
The expected answers are:
- Explanation of the following factors in relation to courtship
- Genotype – is part of the genetic make-up of a cell/individual. Both partners should be aware of their genotype before going into courtship to avoid hereditary diseases in their offspring
- Compatibility – is the ability to exist/perform together inspite of differences Both partners should be able to tolerate each other’s differences at all times
- Partner’s background The background of the members of the families of both partners should be considered to avoid complex/conflicts/diseases/named.
- Enzymes Present in small intestine
- - maltase
- - lactase
- - sucrase
- - erepsin
- - lipase
- - trypsin
- - pancreatic amylase
- Characteristic behaviours of infants
- - Cries a lot to indicate hunger/discomfort/attract attention
- - eats well and frequently
- - sleeps a lot
- - moves eyes to follow the movement of objects
- - attracted by bright colours/light
- - mother’s presence usually recognized
- - responds to stimuli very quickly
- - cannot control body movement.
- - restlessness/playful
- - incontinence/free discharge of urine or faeces
-
Functions of the female reproductive system
- - production of hormones for secondary sexual characteristics
- - produces hormones which maintain pregnancy once the eggs become fertilized until birth
- - produces the female reproductive cells/Ova
- - site for fertilization
- - to force the baby out of the womb when it is time/provides exit for birth
- - produces hormone which maintains the female menstrual cycle
- - provides nourishment and protect the developing foetus/ baby until birth.
- - receives the sperm/penis during coition/sexual intercourse
- - produces milk to nourish the newborn
- - provides sexual sensation/arousal
- - serves as passage for menstrual flow