Organisation - Digestion

Question 1

What is the main function of carbohydrates?

Answer 1

Provides energy

Question 2

Where is bile made?

Answer 2

Liver

Question 3

In which three places is protease produced?

Answer 3

1. Stomach
2. Pancreas
3. Small intestine

Question 4

Where is bile stored?

Answer 4

Gall bladder

Question 5

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

Answer 5

Reduce the time between samples.

Question 6

In which two places does mechanical digestion take place?

Answer 6

1. Mouth
2. Stomach

Question 7

What are the products of protease action?

Answer 7

Amino acids

Question 8

In which two places is lipase produced?

Answer 8

1. Pancreas
2. Small intestine

Question 9

What are the two products of lipase action?

Answer 9

Fatty acids and glycerol

Question 10

What is the monomer that makes up starch?

Answer 10

Glucose

Question 11

State the test and result for starch

Answer 11

Test: Iodine
Result: orange to blue/black

Question 12

State the test and result for sugar

Answer 12

Test: Benedict’s solution
Result: blue to brick red

Question 13

State the test and result for protein

Answer 13

Test: Biuret
Result: blue to purple

Question 14

State the test and result for lipid

Answer 14

Test: Ethanol
Result: colourless to cloudy emulsion