Formative Practice 2.3 (Form 4 Biology Textbook Exercise and Answer)


Question 1:
State the components of cells found in high density in cells that secrete protein products.

Answer:
Rough endoplasmic reticulum, ribosomes and Golgi apparatus.


Question 2:
Briefly describe the structure and function of the nerve tissue.

Answer:
A nerve tissue is made of cell body and nerve fibres that are called dendrites and axons. Nerve tissues coordinate and control bodily activities.


Question 3:
Explain why the palisade mesophyll cell contains a lot of chloroplast.

Answer:
A large number of chloroplasts can absorb more light for photosynthesis.


Question 4:
Fat cells have three adaptive characteristics to allow the storage of fat. Describe the three characteristics.

Answer:
Fat cells contain very little cytoplasm but have high fat content.

Fat cells contain very few mitochondria because it does not need a lot of energy.

Fat cells can expand to store more fat.

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