Organisation

Question 1

How is the volume of water lost from the leaves controlled? (2)

Answer 1

• Guard cells open
• Stomata closes

Question 2

What is the main function of carbohydrates?

Answer 2

Provides energy

Question 3

Where is bile made?

Answer 3

Liver

Question 4

In which three places is protease produced?

Answer 4

1. Stomach
2. Pancreas
3. Small intestine

Question 5

Where is bile stored?

Answer 5

Gall bladder

Question 6

Give one way the investigation into the effect of pH on rate of amylase action could be improved to get accurate results.

Answer 6

Reduce the time between samples.

Question 7

In which two places does mechanical digestion take place?

Answer 7

1. Mouth
2. Stomach

Question 8

What are the products of protease action?

Answer 8

Amino acids

Question 9

In plants, where are meristems found?

Answer 9

Tips of the roots and shoots of plants.

Question 10

What is the substance that strengthens the cell wall of a xylem cell?

Answer 10

Lignin

Question 11

In which two places is lipase produced?

Answer 11

1. Pancreas
2. Small intestine

Question 12

What are the two products of lipase action?

Answer 12

Fatty acids and glycerol

Question 13

What is the monomer that makes up starch?

Answer 13

Glucose