Metabolism - Lecture Twenty-Eight

Question 1

Glucose oxidised

Answer 1

During glycolysis

Question 2

Where do glycolysis occur?

Answer 2

Usually in the cytoplasm

Question 3

How much glucose per day does the human brain require?

Answer 3

120g

Question 4

What do white blood cells tend to use as fuel?

Answer 4

Glucose

Question 5

What do red blood cells tend to use as fuel?

Answer 5

Fats

Question 6

Too much acetyl CoA in glycolysis

Answer 6

Will stop the pyruvate dehydrogenase reaction

Question 7

Activation of glucose in the Energy Investment Phase

Answer 7

Getting the molecule into a form so that energy can be captured

Question 8

Energy Payoff Phase

Answer 8

Return on the investment by making an ATP profit

Question 9

The two phosphorylation reactions of ADP to ATP

Answer 9

Substrate-level phosphorylation

Oxidative phosphorylation

Question 10

Substrate-level phosphorylation

Answer 10

Direct

Energy comes from substrate

Question 11

Two key types of reactions for processing food molecules for ATP synthesis

Answer 11

Phosphorylation of ADP to ATP

Redox reactions

Question 12

Kinase

Answer 12

Named for reverse reaction

Question 13

Fates of pyruvate - anaerobic conditions

Answer 13

In animals, pyruvate is converted to lactate in anaerobic conditions
In yeast, pyruvate is converted to ethanol and CO2 and also recycles NAD+

Question 14

Anaerobic metabolism allows for the regeneration of NAD+

Answer 14

Glycolysis can continue as there is sufficient NAD+ for the next reaction