Formative Practice 5.1 (Form 4 Biology Textbook Exercise and Answer)


Question 1:
What will happen if ribosomes in a pancreas cell do not function?

Answer:
Trypsin is not synthesised therefore protein digestion is slower.


Question 2:
Why must our body temperature be maintained at 37°C?

Answer:
This is because the optimal temperature of enzymes is 37 °C.


Question 3:
What is the optimum pH for a pepsin enzyme action?

Answer:
pH 1.5–2.5


Question 4:
Y is the enzyme that catalyses the hydrolysis of sucrose into glucose and fructose. What is enzyme Y?

Answer:
Sucrase

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