Liver and metabolism

Question 1

What is metabolism?

Answer 1

Combination of all anabolic and catabolic reactions.

Question 2

Give a few examples that energy is required for in the body?

Answer 2

Motion, transport, biosynthesis of essential metabolites and thermoregulation.

Question 3

When is a reaction Exergonic (spontaneous) or endergonic

Answer 3

exergonic when change in G <0 and vice versa.

Question 4

What is coupling?

Answer 4

Endergonic reactions can be driven in the forward direction by coupling it to an exergonic reaction.

Question 5

What is SLP

Answer 5

substrate-level phosphorylation, formation of ATP by a phosphate group transfer from a substrate to ADP, enzyme-mediated.

Question 6

What do prosthetic groups do

Answer 6

they are covalently bonded to an enzyme and act as a temp store for electrons.

Question 7

Where is the ETC located

Answer 7

Located in the inner mitochondrial membrane

Question 8

How many steps are there in the Krebs cycle and what is the compound at each stage.

Answer 8

8 different steps- ACIKSSFMO

Question 9

How many components does the ETC have and what are they linked by

Answer 9

4 components (Complex 1,2,3 and 4) they are linked by 2 soluble proteins ubiquinone (coenzyme Q10) and cytochrome c