Each part of the alimentary canal has the optimum pH for the enzymes that digest food there. What is the optimum pH for an enzyme that works in the stomach?

Which two foods would provide the best sources of carbohydrates, calcium, fibre (roughage) and vitamin C?

Which table states the tests for different food groups?

What are the basic units from which molecules of glycogen and of protein are synthesised?

Which statements describe self-pollination?

A diploid cell produces further cells with a haploid number of chromosomes. Which type of cell division is involved a…

Which row correctly pairs a hormone with its function in the menstrual cycle?