Question 3
The diagram below illustrates injured parts of the human body. Study it and answer questions 3 (a), (b) and (c).
(a) (i) Name the diagrams labelled A, B and C. [3marks]
(ii) Mention the type of skeleton the diagrams labelled
A, B and C belong to [3marks]
(b) Name two minerals found in the diagrams labelled A, B and C. [2marks]
(c) Mention two diseases that could affect the diagrams A, B and C. [2marks]
Observation
This question was attempted by majority of the candidates and their performance was fair.
In part (a)(i) many candidates were able to identify correctly the diagrams labelled A, B and C, some mistook diagram labelled C for tibia and fibula. In part (a)(ii) some candidates got, while some gave wrong answer such as endoskeleton and exoskeleton. In part (b) they did fairly well in it. In part (c) majority of the candidates performed poorly in it, they wrote wrong answer such as arthritis, fracture, polio, e.t.c.
The expected answers are as follow:
3 (a) (i) NAMES OF DIAGRAMS LABELLED A, B AND C
A - femur
B - humerus
C - ulna and radius
(ii) TYPE OF SKELETON TO WHICH THE DIAGRAM LABELLED A BELONGS
- appendicular
TYPE OF SKELETON TO WHICH THE DIAGRAM LABELLED B BELONGS
- appendicular
TYPE OF SKELETON TO WHICH THE DIAGRAM LABELLED C BELONGS
- appendicular
(b) MINERALS FOUND IN THE DIAGRAMS LABELLED A, B AND C
- calcium
- phosphorus
(c) DISEASES THAT COULD AFFECT THE DIAGRAMS LABELLED A, B AND C
- osteoporosis
- osteomalacia/rickets