IGCSE™️ Biology: Human nutrition Flashcards

1

Which enzyme breaks down starch into maltose?

2

The diagram below shows a villus. Which structure is label A pointing at?

3

Villi number around 40 per mm². How many villi would you find in 5 cm² of small-intestine tissue?

4

Which of the following is a source of protein?

5

True or false? The substrate attaches to the active site on an enzyme.

6

Which layer is label A pointing to in the diagram below?

7

What is a balanced diet?

8

Which ions make pancreatic juice alkaline when they are in high concentration?

9

What substance in the stomach kills bacteria?

IGCSE™️ Biology: Human nutrition