Of the following molecules, _____________ is involved I n the electron transport

Question

Of the following molecules, _____________ is involved I n the electron transport in the inner mitochondrial membrane of aerobic organisms.

A)

heme

B)

pantothenic acid

C)

Lipoamide

D)

thiamine pyrophosphate

E)

Biotin

A)

heme

B)

pantothenic acid

C)

Lipoamide

D)

thiamine pyrophosphate

E)

Biotin

1) Glycogenolysis 1-phosphate C A) consume ATP while glycogen synthes is from glucose- does; does not ) doesn't; doesn't does: doeS D) do does not; does 2)The reason that pyruvate is reduced to lactate under vigorously contracting muscle is because lactate oxidation does not require molecular oxygen D) NADH is needed for further oxidation of lactate to CO2 and H2O NAD is needed for glucose oxidation to pyruvate vigorously contracting muscles lack oxaloacetate vigorously contracting muscles have too much oxaloacetate C D) 3) Fructose-2,6-bisphosphate is an increases in response to increasing of phosphofructokinase-1 and its level concentration A) inhibitor; pyruvate activator; pyruvate ) activator; glucose D) inhibitor; glucose

Explanation / Answer

1) Glycogenolysis, or glycogen breakdown, releases glucose when it is needed and it does not require ATP.

while glycolgen synthesis requires ATP . ( does not , does )

2) When oxygen supply is insufficient, typically during intense muscular activity, energy must be released through anaerobic metabolism. And Lactate oxidation does nto require oxygen.

3) Fructose 2,6 diphosphate strongly activates glucose breakdown in glycolysis through allosteric modulation of phosphofructokinase 1.

So it is an activator of phosphofructokinase 1 in response to increase in concentration of glucose ( option c).

4) Thiamine pyrophosphate

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.