1. What is the driver of ATP synthase in mitochondria? a. H + b. OH - c. H 2 O d

Question

1. What is the driver of ATP synthase in mitochondria?

a. H+

b. OH-

c. H2O

d. CO2

.

2. What is TCA cycle?

a. Process that generate NADH

b. Process that generate FDAH2

c. Process that generates ATP

d. All of the above

.

3. Why does fatty acid synthesis add two carbons each cycle?

a. Acetyl CoA, which has two carbons, is used to start each cycle.

b. Two CO2 molecules are added each cycle.

c. Three carbon molecule, glycerol, is added first and one carbon leaves as CO2.

d. Two carbon molecule, glycine, is used to start each cycle.

.

4. Some hydrogen ions (protons) return into mitochondria matrix without participating synthesis of ATP. What is the mechanism of it and what is the result of the process?

a.Protons return through proton translocase and generate water.

b. Protons return after forming pyruvate and generate CO2.

c. Protons return through uncoupling protein and generate heat.

d. Protons return through pores and generate acetyl CoA.

.

5. Glycogen synthase is active when it is dephosphorylated and inactive when it is phosphorylated. Insulin induces protein phosphatase-1, which dephosphorylate glycogen synthase. How does low glucose level effect shift balance of phosphorylated and dephosphorylated glycogen synthase?

a. Maintain equal amount of phosphorylated and dephosphorylated glycogen synthase

b. Remain at what they were before glucose concentration changed

c. Shift toward more phosphorylate glycogen synthase

d. Shift toward more dephosphorylated glycogen synthase

Explanation / Answer

1 ) ANSWER : A . H+

                    ATP is formed from ADP & Pi inpresence of ATP Synthase .

              i.e       ADP + Pi ----------> ATP

                    Energy is often released in the form of hydrogen ions( H+ )

2 ) ANSWER : A . Process that generate NADH

                         TCA Means Tri carboxilic acid . NADH is generated by TCA

3 ) ANSWER : A . Acetyl CoA , Which has two carbons , is used to start each cycle .

4 ) ANSWER ; B . Protons return after forming Pyruvate and generate CO2

5 ) ANSWER : B. Remain what they were before glucoseconcentration changed

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

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