Glucose metabolism

Question 1

Why is glucose important?

Answer 1

fuel: can be stored as glycogen for later fuel consumption, yields good amount of energy after oxidation or loss of electrons. The enrgy is provides meets the needs of organisms, easily. Glucose can also be used as a biochemical prescurser for amino acids, emembrane lipids, nucleotides or cofactors need in metabolism

Question 2

What is glycolysis?

Answer 2

It is when glucose is oxidased for energy. It is used for short term energy needs

Question 3

What is the pentose phosphate Pathway?

Answer 3

It is when glucose is oxidaised to produce NADPH. This is used for detoxification and biosynthesis of lipids and nucleotides

Question 4

Is glycolysis aerobic or anaerobic?

Answer 4

anaerobic. Developed when atmosphere lacked O2.

Question 5

What is the enzyme that transforms glucose to glucose 6-phosphate? What is the point of this step? Is is favourable?

Answer 5

hexokinase. Adding phosphate to glucose keeps glucose in the cell. ALso signals to cell to let more glucose in, because some is being used up. favourable

Question 6

What is the enzyme that transfers glucose 6-phosphate to fructose 6-phosphate? What is the purpose? Is it favourable?

Answer 6

phosphohexose isomerase. Fructose is easier to phosphorylase.

Question 7

What is the enzyme that transfers fructose 6-phosphate to fructose 1,6 -biphosphate?

Answer 7

PFK-1
phosphorfructokinase-1

Question 8

What is the enzyme that transfers fructose 1,6 -biphosphate to its two products?

Answer 8

Aldose. cleaves fructose 1,6-biphosphate into glyceraldyhyde1-phosphate and dihydrpxyacetone phosphate