Assignment Flashcards

1
Q

What is the aim of the investigation?

A

To investigate the effect of changing substrate concentration on enzyme activity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are enzymes?

A

Biological catalysts that speed up chemical reactions and remain unchanged

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is an active site?

A

The region on an enzyme that allows it to bind to a specific substrate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What does ‘induced fit’ mean?

A

The active site alters its shape to fit the substrate better after binding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are anabolic reactions?

A

Reactions that build small molecules into larger molecules using enzymes, requiring energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are catabolic reactions?

A

Reactions that break down larger molecules into smaller molecules using enzymes, releasing energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What does metabolic pathways refer to?

A

Series of chemical reactions in a cell that are catalyzed by enzymes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is affinity in the context of enzymes?

A

How one biological molecule is attracted to another molecule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What happens to the activation energy when a substrate binds to an enzyme?

A

The activation energy of the reaction is lowered

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What occurs when all active sites of an enzyme are occupied?

A

The enzyme becomes saturated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What does saturation mean in enzyme activity?

A

The maximum amount of substrate present with all active sites occupied

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What happens to the reaction rate when substrate concentration is too low?

A

The enzyme will work slowly and eventually stop working

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Fill in the blank: Enzymes can have a _______ or low affinity.

A

high

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

True or False: Enzymes are involved in both anabolic and catabolic reactions.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the effect of increasing substrate concentration on enzyme reactions?

A

The enzyme reaction increases until all active sites are occupied

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the consequence of adding more substrate when the enzyme is saturated?

A

Makes no difference to the reaction rate