Biology 380 - Cell Biology » Summer 2022 » Quiz 4, Ch 13 and 14

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Question #1
ATP synthase molecules in mitochondria form dimers that are localized mostly in the cristae. What should happen if subunits of the synthase that are required for dimerization are mutated?
A.   ATP would not be transported out of the matrix
B.   Nothing would happen
C.   The pH of the intermembrane space would decrease
D.   Less ATP would be produced
Question #2
During photosynthesis ATP is produced in the ______ of the chloroplast.
A.   Stroma
B.   Thylakoid space
C.   Intermembrane space
D.   Inner membrane
E.   Thylakoid membrane
Question #3
After absorbing light energy, excited chlorophyll molecules could return to the unexcited state by all of the following ways EXCEPT:
A.   By giving off heat
B.   By transferring electrons
C.   By the slow loss of the energy
D.   By transferring energy
Question #4
Vesicles budding off of the endoplasmic reticulum will be covered in _________ coated vesicles, while vesicles budding from the golgi and returning to the ER will be covered in __________ coated vesicles.
A.   COPII, COPI
B.   COPI, COPII
C.   COPI, clathrin
D.   clathrin, COPI
E.   COPII, clathrin
Question #5
In O-linked glycosylation, the sugar ______ is attached to the amino acid Threonine using the following enzyme ______.
A.   N-acetylgalactosamine; threonine
B.   N-acetylglucosamine; glycosidase
C.   N-acetylgalactosamine; glycosidase
D.   N-acetylglucosamine; threonine

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