Cell Metabolism & Enzymes

Question 1

Define metabolism?

Answer 1

These are all the chemical reactions in an organism

Question 2

Give an example of an anabolic reaction in animals

Answer 2

protein synthesis

Question 3

Give an example of a catabolic reaction in animals

Answer 3

respiration or digestion

Question 4

What is an enzyme?

Answer 4

This is a biological catalyst

Question 5

Which type of biomolecule are enzymes?

Answer 5

Proteins

Question 6

Name 2 factors that affect enzyme action

Answer 6

pH and Temperature

Question 7

What is meant by the term specify in relation to enzyme activity?

Answer 7

An enzyme can act on only one particular substrate

Question 8

Name the part of an enzyme responsible for its specificity

Answer 8

active site

Question 9

Explain enzyme specificity with reference to the active site

Answer 9

This means that only one substrate can fit the shape of the active site

Question 10

What happens to the activity of enzymes when they are placed in a medium outside of their optimum pH

Answer 10

Their activity is reduced

Question 11

Name 2 substance in the school lab that was used to immobilise yeast cells

Answer 11

Sodium Alginate

Calcium Chloride