CHEM 210 EXAM 8|QUESTIONS AND 100% CORRECT WELL DETAILED ANSWERS|LATEST UPDATE!!!!2025/2026|GUARANTEED PASS|GRADED A+

UPDATE!!!!2025/2026|GUARANTEED


T/F the majority of reactions of the urea cycle occur in the cytosol - ANSWER true



T/F NADH yields 1.5 ATP molecules after donating electrons and hydrogen atoms to the
electron transport chain (ETC) - ANSWER false



T/F GTP is invested in the urea cycle - ANSWER false



T/F there are six complexes associated with the ETC - ANSWER false



T/F in the production of ATP via ATP synthase, the H+ ions move from the mitochondrial
matrix to the intermembrane space - ANSWER false



the urea cycle involves ____ reactions (only those in the cyclic portion of the process)

A. 1

B. 2

C. 3

D. 4

E. 5 - ANSWER D. 4



which amino acids are involved in the urea cycle

A. ornithine



1

, B. aspartate

C. threonine

D. both A and B

E. both A and C - ANSWER D. both A and B



fumarate is converted to ___ for it to reenter the mitochondrion

A. ornithine

B. citrulline

C. malate

D. fumarase

E. ammonia - ANSWER C. malate



urea is useful for excreting nitrogen from cells due to its:

A. ability to form london forces

B. high density of nitrogen atoms

C. large size

D. low melting point

E. both B and C - ANSWER B. high density of nitrogen atoms



____ is both a component of the urea cycle and the citric acid cycle

A. malate

B. acetyl-CoA

C. citrate

D. fumarate

E. none of the above - ANSWER D. fumarate



deamination of an amino acid results in a carbon skeleton and in the production of ____



2