Download Biology 20 Lecture Quiz #3 – Take Home Cellular Respiration

Biology 20
Lecture Quiz #3 – Take Home
Cellular Respiration – DUE 23 June 2010 at 7:50 AM – I do not want any late quizzes!
1. The main function of cellular respiration is _____.
a) breaking down toxic molecules;
b) making ATP to power cell activities;
c) making food;
d) producing cell structures from chemical building blocks;
e) breaking down ATP, so that SDP and P can be reused.
2. In cellular respiration, _____ is oxidized and _____ is reduced.
a) oxygen…ATP;
b) ATP … oxygen;
c) glucose … oxygen;
d) CO2 …water; e) glucose…ATP.
3. A glucose molecule is completely broken down in glycolysis and the Citric acid cycle, but these two
processes yield only a few ATPs. Where is the rest of the energy that the cell obtains from the glucose
molecule?
a) in FAD and NAD; b) in the O2 used in the ETC;
c) lost as heat; d) in NADH & FADH2
4. In eukaryotes, the electron transport chain is a series of electron carrier molecules embedded in which
organelle?
a) the smooth ER;
b) the rough ER;
c) plasma membrane;
d) mitochondria
5. The net gain of ATP for each glucose molecule that enters glycolysis is, in the absence of oxygen,
approximately?
a) 38 ATP; b) 4 ATP;
c) 2 ATP;
d) 0 ATP; e) hum…
6. What is the name of the process in which pyruvate is converted to lactate?
a) chemiostic theory; b) fermentation; c) glycolysis;
d) citric acid cycle
7. Enzymes such as succinic acid dehydrogenase (SDH) are important in the citric acid cycle. They can be found?
a) cytosol;
b) mitochondrial matrix;
c) inner membrane of the mitochondria;
d) thylakoid;
e) damn…I should have paid more attention yesterday!
8. The molecule that serves as the final electron acceptor in cellular respiration is?
b) CO2;
c) water;
d) ATP;
e) beer.
a) O2;
9. After learning about cellular respiration, you decide to do an experiment where you fed mice with glucose (C6H12O6) in
which the oxygen portion was radioactively labeled. You monitored the mice closely, and in a few minutes radioactive
oxygen atoms from the glucose showed up in:
a) CO2; b) NADH;
c) H2O; d) ATP;
e) O2;
ab) Damn, I knew I shouldn’t have fallen asleep.
10. Name the process which takes a little longer to produce energy, but in the end will produce the most ATP per
molecule of glucose oxidized? Think about your endurance/postural muscles.
a) aerobic respiration;
b) anaerobic respiration;
c) alcohol fermentation;
d) lactic acid fermentation;
e) all produce approximately the same amount of ATP per glucose molecule.