Biochem Module 7 with correct questions and answers 2025/2026.

Biochem Module 7 with correct questions and
answers 2025/2026.




Besides NADH and FADH2, what energy molecule is produced directly in the citric acid cycle?



A. CO2

B.ATP

C. CTP

D. UTP

E. None of the above - correct answers E. None of the above



Cellular respiration is the process of cells taking in ______ and producing ______ to generate
energy.



A. Glucose; NADH

B. FAD; FADH2

C. CO2; ATP

D. NAD+; NADH

E. O2; CO2 - correct answers E. O2; CO2



Consider the fatty which has 20 carbons (below).



A. (2 pts) How many cycles of β -oxidation are required? Briefly explain.

, B. (2 pts) How many acetyl-CoA are produced? Briefly explain.

C. (1 pts) How many NADH and FADH2 are produced from β -oxidation (only) of this molecule? -
correct answers A. 9 cycles are required for oleic acid. Each cycle removes two carbon units. ON
the final cycle, two acetyl groups are produced.

B. There are 10 acetyl-CoA groups produced. Two acetyl-CoA groups on the last cycle.

C.There are 9 NADH and 9 FADH2 molecules produced. One per cycle.



Glucose contains ___(A)_____ carbon atoms. The oxidation of a glucose molecule utilizes
______(B)______ ATP. Later, the ____(C)_____ three-carbon products of glycolysis produce
____(D)______ ATP by direct phosphorylation, which gives a net yield of two ATP. In addition,
____(E)_____ NADH are produced in glycolysis.



Word bank: one, two, three, four, five, six - correct answers A) six

B) two

C) two

D) four

E) two



How is ATP used in the initial steps of glycolysis?



- Lipid phosphorylation reagent

- Isomerization reaction

- Source for phosphorylation

- Protein production

- None of the above - correct answers - Source for phosphorylation



How many ATP molecules does NADH yield after oxidative phosphorylation?