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.   Less ATP would be produced
B.   Nothing would happen
C.   The pH of the intermembrane space would decrease
D.   ATP would not be transported out of the matrix
Question #2
During photosynthesis ATP is produced in the ______ of the chloroplast.
A.   Intermembrane space
B.   Stroma
C.   Thylakoid membrane
D.   Inner membrane
E.   Thylakoid space
Question #3
After absorbing light energy, excited chlorophyll molecules could return to the unexcited state by all of the following ways EXCEPT:
A.   By the slow loss of the energy
B.   By transferring electrons
C.   By giving off heat
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.   clathrin, COPI
C.   COPII, clathrin
D.   COPI, COPII
E.   COPI, 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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