2.1 Metabolic Pathways Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

metabolic pathways

A

integrated and controlled pathways of enzyme-catalysed reactions within a cell

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

metabolic pathways can have (3)

A
  • reversible steps
  • irreversible steps
  • alternative routes
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

anabolic reactions

A
  • build up large molecules from small molecules
  • require energy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

catabolic reactions

A
  • break down large molecules into small molecules
  • release energy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what are embedded in membranes? (3)

A
  • protein pores
  • pumps
  • enzymes
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

metabolic pathways are controlled by (2)

A
  • the presence/absence of particular enzymes
  • the regulation of the rate of reaction of key enzymes
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

adding enzymes to a reaction does what?

A

lowers the activation energy needed for it to proceed

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

the active site of an enzyme is…

A

flexible

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

induced fit

A

when the active site of an enzyme changes place to fit closely around the substrate

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

induced fit ensures… (2)

A
  • the active site comes into close contact with the substrate
  • the chance of a reaction occurring increases
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

affinity

A

the tendency of a molecule to bind to an enzyme

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

substrates have a high affinity for what?

A

the active site of an enzyme

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

after a reaction, what happens to the affinity of the products for the active site?

A

it lowers, so they seperate

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