Bio 200 Ch 6 Metabolism

Front 1

Most everything is regulated by

Back 1

Isoleucine

Front 2

What happens in allosteric inhibition?

Back 2

Active site changes shape
---> substrate cannot bind

Front 3

What is an allosteric site?

Back 3

Additional site on enzyme where ONLY a regulatory molecule can bind
(NOT AN ACTIVE SITE)

Front 4

What happens to the substrate when the inhibitor binds to the active site?

Back 4

Substrate cannot bind (competitive inhibition)

Front 5

What term means the reaction does not occur?

Back 5

Inhibit

Front 6

Non protein, organic molecules
- often carrier/ transport molecules (vitamins)

Back 6

Coenzyme

Front 7

What 2 factors affect enzyme function?

Back 7

Temperature
pH

Front 8

Non protein enzyme helpers
- usually inorganic (iron)

Back 8

Cofactor

Front 9

When shape changes to hold substrate?

Back 9

Induced fit

Front 10

An induced fit where the enzyme changes shape after substrate binds

Back 10

Active site

Front 11

How do enzymes catalyze biochemical reactions?

Back 11

Hold reactant in position that reaction is most likely to occur

Front 12

How do enzymes catalyze reactions?

Back 12

Decrease amount of NRG needed, lower course of reaction

Front 13

Free NRG needed to start a reaction

Back 13

Activation energy

Front 14

Chemical reaction
Anabolic (small to big)
Needs NRG
NON-SPONTANEOUS

Back 14

Endergonic reaction

Front 15

Chemical reaction with +🔺G

Back 15

Endergonic

Front 16

Chemical reaction
Catabolic (big to small)
Gives NRG
SPONTANEOUS

Back 16

Exergonic (NRG is EXiting)

Front 17

Chemical reaction with -🔺G

Back 17

Exergonic

Front 18

Processes with a positive 🔺G are

Back 18

Non spontaneous

Front 19

Processes with a negative 🔺G are

Back 19

Spontaneous

Front 20

What does 🔺G stand for?
What is it's formula?

Back 20

Gibbs Free Energy
G(products) - G(reactants)

Front 21

This occurs with NRG in a chemical reaction (requires NRG)

Back 21

Non spontaneous processes

Front 22

This occurs without NRG input and increased entropy... a chemical reaction

Back 22

Spontaneous processes

Front 23

What is entropy (s)?

Back 23

Disorder/ randomness

Front 24

What is the second law of thermodynamics?

Back 24

Transformation of NRG increases entropy of the universe

Front 25

In the first law of thermodynamics:
Energy can _______
Energy cannot______

Back 25

NRG can transfer
NRG cannot be created/ destroyed

Front 26

What is the first law of thermodynamics?

Back 26

Total NRG in the universe is constant

Front 27

Study of NRG and it's transformations

Back 27

Thermodynamics

Front 28

Big to small

Back 28

Catabolic pathways

Front 29

Small to big

Back 29

Anabolic pathways

Front 30

Proteins that catalyze a reaction

Back 30

Enzyme