Week 9

Question 1

What is glycolyis?

Answer 1

A sequence of reactions connecting the partial degradation of glucose into pyruvate and the synthesis of ATP from Pi and ADP

Question 2

Purpose of glycolysis

Answer 2

Generate ATP from free energy as rearrangement of glucose
Partial degradation of glucose, provide material for TCA cycle

Question 3

Stage of glycolysis

Answer 3

Set-up (activating glucose as preparation for degradation, requires ATP)
Mid-phase (Hexose degraded into 2 triose, oxidized into carboxylate)
Pay-off (recovery of bound energy to form ATP)

Question 4

Use of pyruvate (anaerobe)

Answer 4

Fermentation
Reduced by NADH to become lactate

Question 5

Use of pyruvate (aerobe)

Answer 5

Enters krebs cycle (TCA cycle)
NADH formed enters electron transport chain to produce ATP

Question 6

Stages of glycolisis regulation

Answer 6

Hexokinase
Phosphofructokinase
Pyruvate kinase

Question 7

What is gluconeogenesis

Answer 7

Synthesis glucose from pyruvate
3 pathway, high energy conversion is by passed