Question

Glycogen:
Answer
a. Is broken down to glucose-1-phosphate by glycogen synthase
b. Has branch chains that are attached at the branch points by beta1,6 glycosidic linkages
c. Built by glycogen phosphorylase when there is high ATP and highglucose-6-P
d. Is an important storage form of glucose in our musclecells
e. All of the above


Which of these glycolytic enzymes is not found ingluconeogenesis?
Answer
a. Phosphoglycerate kinase
b. phosphoglyceromutase
c. enolase
d. hexokinase
e. triose phosphate isomerase


Pyruvate dehydrogenase is responsible for removing electrons frompyruvate to make NADH and succinyl-CoA.
Answer

True
False

Question 4

Ethanol production exists in muscle cells in order to regenerateNAD+ for glycolysis.
Answer

True
False

Question 5

What effect will low fructose-2,6-bisphosphate and high ATP have onglycolysis?
Answer
a. It will shut glycolysis down at the step of triose phosphateisomerase
b. It will shut glycolysis down at phosphofructokinase
c. It will speed up glycolysis by activating triose phosphateisomerase
d. It will speed up glycolysis by activatingphosphofructokinase
e. None of the above

Question 6

Enzymes cannot make a non-spontaneous reaction occur withoutcoupling to another spontaneous energy releasing reaction.
Answer

True
False

Question 7

Which of the following pairs of redox molecules is NOT in theproper order of lower to higher reduction potential?
Answer
a. FAD then CoQ
b. FMN then Fe-S from Complex I
c. Cyt c then Cyt a
d. then Cyt a3 then oxygen
e. all are correct

Question 8

Put the following components of the electron transport chain inorder.
Answer

cytochrome c
coenzyme Q
oxygen
Fe-S cluster from Complex I
flavin mononucleotide

Question 9

Which of these processes results in depletion of protons in thematrix and buildup of protons in the intermembrane space of themitochondrion?
Answer
a. Oxidation of NADH by FMN and subsequent reduction of the Fe-Scluster of complex I.
b. Direct oxidation of NADH by the Fe-S cluster in complex I.
c. Formation of water in the intermembrane space
d. Oxidation of FADH2 by the Fe-S cluster in complex II
e. Both a and d

Question 10

How many moles of ATP will you get for 1 mole of FADH2 that isreoxidized by the electron transport chain? Please give only anumber.
Answer

Question 11

Which of these accurately describes the Fe-S cluster from ComplexII in the ETC?
Answer
a. It is responsible for oxidizing FAD
b. It is responsible for oxidizing CoenzymeQ
c. It will not accept protons resulting in protons being left inthe matrix
d. All of the above
e. None of the above