Metabolism Overview

Question 1

Where in the cell does glycolysis take place and what is the end-product?

Answer 1

In the cytosol

Glucose (6C) is broken down to 2 x Pyruvate (3C)

Question 2

Where does Beta Oxidation of Fatty acids take place in the cell?

Answer 2

In the mitochondria

Question 3

Where does krebs cycle take place?

Answer 3

In the mitochondria

Question 4

Where does the electron transport chain/oxidative phosphorylation take place in the cell?

Answer 4

Across the inner mitochondrial membrane.

Question 5

True or False: Fatty acids free in the plasma and the cell

Answer 5

False

They are bound to albumin in the blood.

Within the cell they are bound to fatty acid binding protein.

Question 6

What is the structure of ATP?

Answer 6

Question 7

Describe the difference between normal enzyme action and allosteric enzyme action.

Answer 7

Allosteric enzymes have activating and inhibitory sites which alter the confirmation of the substrate binding site and thus can modulate their activity.

Question 8

Differentiate between UTP and GTP in driving the synthesis of biomolecules.

Answer 8