Biochem: Catabolism Of Glucose

Front 1

Glycolysis has two phases:

1. Preparatory phase

Back 1

Glucose enters cell and is phosphorylated to glucose-6-phosphate

Glucose-6-P is then converted to fructose-6-phosphate

Front 2

What is the process called that breaks down glycogen to glucose?

Back 2

Glycogenolysis

Front 3

Glycogen Phosphorylase?

Back 3

Adds a phosphate to glucose forming glucose-1-phosphate

Front 4

Phosphoglucomutase (or isomerase)?

Back 4

rearranges glucose-1phosphate to glucose-6-phosphate

Front 5

Pyruvate kinase?

Back 5

Creates 2 3C pyruvate molecules from glucose-6-phosphate

Front 6

Pyruvate dehydrogenase complex (PDC)?

Back 6

Oxidises pyruvate to form Acetly CoA which then enters the Krebs or citric acid cycle.

Front 7

What does hexokinase do?

Back 7

It is an allosteric enzymes that regulates the number of glucose molecules that enter the cell. It is inhibited by the product glucose-6-phosphate

Front 8

ETC:

What happens at Complex 1

Back 8

- oxidizes NADH

- transfers e- to CoQ

Front 9

ETC:

What happens at Complex 2

Back 9

- passes electrons from krebs cycle to CoQ

- e- are transferred via FADH2

- does not pump protons

Front 10

ETC:

What happens at Complex 3

Back 10

- pumps 1H+ per e-

- oxidizes reduced CoQ

Front 11

ETC:

What happens at Comple 4

Back 11

- reduces O2 to H2O

- pumps 1H+ per e-

Has allosteric sit for ATP.

Front 12

ETC:

What happens at Comple 5

Back 12

- uses electrochemical proton gradient
to synthesize ATP