E. Bioenergetics - Respiration Energy transformations at the substrate level

Question 0

What enzyme is responsible for:

fructose 6-phosphate + ATP -> fructose 1,6 bisphosphate + ADP

Answer 0

phosphofructokinase

Question 1

In relation to glycolysis, what is the enzyme that is responsible for:

Glucose + ATP -> Glucose 6-phosphate + ADP + P

What is the importance of this step?

Answer 1

hexokinase + mg2+

The negative charge of the phosphate prevents it from going through the plasma membrane - trapping it inside the cell.

Question 2

What enzyme is responsible for fructose 1,6- bisphosphate to dihydroxyacetone phosphate + glyceraldehcye 3-phosphate?

Answer 2

aldolase

Question 3

How many carbons does acetyl coA have

Answer 3

Two

Question 4

Glucose is converted into glucose 6 phosphate by an enzyme that is found in the …… called …… or everywhere else called ……..

Answer 4

mammalian liver - glucokinase

mammalian tissure - hexokinase

Question 5

Define what kinase is.

Answer 5

Kinase is an enzyme that transfers phosphoryl groups between ATP and a metabolite.

Question 6

Is hexokinase specific to D-glucose?

Answer 6

No. catylzes phosphyorylation of hexoses such as D-glucose, D-mannose and D-fructose.