Question 1
The diagram below illustrates the taste buds in an organ in humans. Study it and answer questions 1(a) to 1(c).
A. Name the parts labeled I,II,III and IV. [4 mark]
B.State three functions of the organ to human [3 marks]
C.Outline three ways of caring for the organ. [3 marks]
Observation
Candidates who performed well in this question were able to state the functions of the organ as well as ways of caring for the organ. However majority of them mixed up the labeling of the different parts.
The expected answers are:
Name of labelled parts
I – bitter bud
II – sour bud
III – sweet bud
IV – salt bud
(b) Function of the organ to humans
- for tasting
- for speech/talking/speaking
- involved in the process of digestion
- helps in chewing/mastication
- helps in swallowing/rolling/forming food into a round ball/bolus
- for sensing/feeling temperature of substance
- for removing food debris from teeth
(c) Ways of caring for the organ
- Brushing regularly/cleaning/washing
- Avoiding extremely hot food/drinks
- Having periodic oral check-up
- Carrying out tongue exercise
- Keeping the tongue hydrated/ drinking water regularly