Enzymes

Question 0

What’s the substrate of salivary amylase

Answer 0

Starch

Question 1

What is the enzyme that breaks down starch

Answer 1

Salivary amylase

Question 2

What’s the product of salivary amylase

Answer 2

Maltose

Question 3

What is the basic method of the experiment on how to investigate the action of an enzyme on starch

Answer 3

Dissolve some starch in water to form a starch solution.

Add equal amounts of starch solution to each of two test tubes.

Add amylase or saliva to one of the tubes. Do not add amylase or saliva to the other tube, This tube acts as a control.

Leave both test tubes for 10 minutes in a water bath at 37°C.

Add a few drops of iodine to each test tube

Question 4

What is the result of the experiment on how to investigate the action of an enzyme on starch

Answer 4

The contents of the tube with the saliva in it stays brown in the presence of iodine. This shows there is no starch present.
The contents of the other tube turn blue-black. This shows that it still contains starch.

Question 5

What is the conclusion to the experiment on how to investigate the action of an enzyme on starch

Answer 5

That the enzyme amylase breaks down starch

Question 6

Explain enzyme

Answer 6

A protein made in the body which speeds up chemical reactions without using itself up, catalyst

Question 7

Explain substrate of an enzyme

Answer 7

The substance an enzyme works on

Question 8

Explain product of an enzyme

Answer 8

The substance produced as a result of the enzymes actions