Exam 3 Flashcards
_____ molecules of ATP are produced per molecule of glucose by glycolysis alone. The
complete oxidation of a molecule of glucose to CO2 and H2O produces about ______ molecules
of ATP.
Two….Thirty
Which of the following describes the net result of one turn of the citric acid cycle?
Produces 3 NADH, 1 GTP, 1 FADH2, and releases two molecules of CO2.
Which one of the following linkages describes chemiosmotic coupling?
electron transport chain, proton pumping, ATP synthesis
In oxidative phosphorylation, what is accomplished in the final electron transfer event
in the electron transport chain?
One O2 molecule is combined with 4 electrons and 4 protons to form two water molecules
During the synthesis of ATP by mitochondrial ATP synthase, protons flow down their electrochemical gradient from _______________ to __________________
the intermembrane space…the matrix
In stage 1 (light reactions) of photosynthesis, where do protons become concentrated in the
chloroplast?
in the thylakoid space
In stage 1 of photosynthesis, where does the ADP to ATP reaction occur?
in the stroma near the thylakoid membrane
In stage 1 of photosynthesis, low-energy electrons are taken from __________.
H20
Most of the chlorophyll molecules in chloroplasts are part of _______________.
the antenna complex
In the carbon fixation cycle, 3 molecules of CO2 fixed give a net yield of one molecule of ____________ at a net cost of 9 molecules of _________ and 6 molecules of ___________.
glyceraldehyde-3-phosphate ……… ATP ………… NADPH
Which one of the following accurately describes the nuclear transport receptor?
It is a protein that moves in and out of nucleus.
Which of the following describes the signal sequence for a soluble protein that crosses the
ER membrane and enters the lumen?
Amino terminal sequence that gets cleaved from the protein
Which of the following describes the stop-transfer sequence for a single-pass transmembrane protein?
Internal sequence that remains part of the protein
