Energy reactions in cells

Question 1

Anabolic pathways are …… whilst catabolic pathways are ……

Answer 1

Anabolic pathways are reductive whilst catabolic pathways are oxidative

Question 2

Oxidative pathways release hydrogen atoms. True or false?

Answer 2

True

Question 3

Exergonic pathways ……. energy

Answer 3

Release

Question 4

H-carrier molecules all contain components from which vitamins?

Answer 4

The B vitamins

Question 5

What reaction does adenylate kinase catalyse and why?

Answer 5

2ADP -> ATP + AMP. AMP is a low energy signal so stimulate catabolic processes.

Question 6

What is the role of creatine kinase?

Answer 6

It catalyses the reaction:

Creatine + ATP -> Phosphocreatine + ADP

Question 7

Which form of creatine kinase is a marker of myocardial infarction?

Answer 7

CK-MB

Question 8

Phosphocreatine and creatine are broken down to …… at a constant rate.

Answer 8

Creatinine

Question 9

Creatinine excretion per 24 hours is proportional to what?

Answer 9

Muscle mass

Question 10

What is metabolism?

Answer 10

Metabolism is the set of processes which derive energy and raw materials from food stuffs and use them to support repair, growth and activity of the tissues of the body to sustain life