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Higher Human Bio - Unit 1 (Cell Biology) > Metabolic Pathways > Flashcards

Flashcards in Metabolic Pathways Deck (13)
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1

What are metabolic pathways controlled by?

Enzymes

2

The two types of reactions within metabolic pathways are

Anabolic & Catabolic

3

What type of reaction build up small molecules into large molecules?

Anabolic reaction

4

What type of reaction break down large molecules into small molecules?

Catabolic reaction

5

Anabolic reactions require

energy

6

Catabolic reactions release

energy

7

What is induced fit?

When the shape of an enzyme's active site changes shape to better fit the substrate.

8

Substrates have high affinity for

the active site

9

Products leave the active site because they have a

low affinity

10

A competitive inhibitor binds

at the active site (which prevents the substrate from binding)

11

Competitive inhibition can be reversed by

increasing substrate concentration

12

A non-competitive inhibitor binds

away from the active site (but changes the shape of the active site which prevents the substrate from binding)

13

Feedback inhibition works when

an end-product reaches a critical concentration and inhibits an earlier enzyme (blocking the metabolic pathway)