E-PolyLearning

21. The composition of the inner mitochondrial membrane is most like that of
a. the outer mitochondrial membrane
b. the cell's plasma membrane
c. some bacterial plasma membranes
d. the nuclear membrane
View Answer Report Discuss 50-50!
Answer: (c).some bacterial plasma membranes

22. If complex III were incorporated into an artificial lipid vesicle in order to demonstrate it's proton translocating ability in isolation, which of the following would be an appropriate electron donor?
a. Cytochrome c red
b. Cytochrome c peroxidase
c. Ubiquinol (UQH2)
d. Cytochrome c oxidase
View Answer Report Discuss 50-50!
Answer: (c).Ubiquinol (UQH2)

23. The cell membrane is made up of
a. lipoproteins
b. cellulose
c. phospholipids
d. phosphoproteins
View Answer Report Discuss 50-50!
Answer: (a).lipoproteins

24. Which of the following statements about the outer mitochondrial membrane is not true?
a. The outer membrane is impermeable to hydrogen ions
b. The outer membrane is highly permeable to substances of small molecular weight
c. The outer membrane is about 50% lipid and 50% protein by weight
d. The outer membrane contains porins
View Answer Report Discuss 50-50!
Answer: (a).The outer membrane is impermeable to hydrogen ions

25. Specialized type of peroxisome and the site of glyoxylate pathway in certain plants is known as
a. gly-peroxisome
b. lysosome
c. glyoxysome
d. none of these
View Answer Report Discuss 50-50!
Answer: (c).glyoxysome

Page 5 of 17