CHEM 210 Biochemistry Test 8_Portage

Test 8

CORRECT ANSWERS IN RED



Question 1

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

True

False



Question 2

True or False: FADH2 yields 1.5 ATP molecules after donating electrons and hydrogen atoms to the
electron transfer chain (ETC).

Correct!

True

False



Question 3

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

True

Correct!

False



Question 4

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

True

False



Question 5

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

, True

False



Question 6

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



Correct!

4

5

6

8

10



Question 7

Which amino acids are involved in the urea cycle?

A. Arginine

B. Aspartate

C. Threonine

D. Both A and C

E. Both A and B



Question 8

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

You Answered

Ornithine

Citrulline

Malate

Fumarase

Ammonia