Portage Learning Chem 210 - Module 8 exam.

Question 1
pts

True or False: The majority of reactions of the urea cycle occur in the cytosol.

TRUE
Question 2
pts

True or False: NADH yields 1.5 ATP molecules after donating electrons and hydrogen
atoms to the electron transfer chain (ETC).

FALSE
Question 3
pts

True or False: GTP is invested in the urea cycle.

FALSE
Question 4
pts

True or False: There are six complexes associated with the ETC.

FALSE
Question 5
pts

True or False: In the production of ATP via ATP synthase, the H + ions move from the
mitochondrial matrix to the intermembrane space.

FALSE
Question 6
pts


The urea cycle involves _________ reactions (only those in the cyclic portion of the
process).


1
2

, 3
4
5
4
Question 7
pts

Which amino acids are involved in the urea cycle?

A. Ornithine
B. Aspartate
C. Threonine
D. Both A and B
E. Both A and C
D.BOTH A AND B
Question 8
pts

Fumarate is converted to ________ for it to reenter the mitochondrion.

Ornithine
Citrulline
Malate
Fumarase
Ammonia
MALATE
Question 9
pts

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