Principles of Biology : Quiz 9 Study Guide
We will take Quiz 9 on Wednesday, October 22. I
recommend that you answer these questions yourself or with classmates.
This not a graded assignment, nothing is to be turned in. These
questions are just to help you prepare for this quiz.
Reading: You should read Chapter 7, How Cells Harness Energy, and Chapter 8, up to page 152 (up to section 8.5).
There are flashcards and animations on the Aris site you should study.
Quick
Link to the Aris Site.
Questions to consider
1) What is the overall chemical equation of the complete oxidation of
carbohydrates like glucose?
2) What is the overal chemical equation for photosynthesis?
3) What are the three possible fates of the pyruvate molecule in cellular respiration? Explain.
4) What is "the Krebs Cycle?"
5) Why is it called a "cycle?" Explain.
6) What are the products of the Krebs cycle? What is produced in one turn of the cycle?
7) What is the fate of the NADH and FADH2? Explain.
8) What is the "Electron Transport Chain?" Where is it? What does it do?
9) What is "ATP synthase?" What does it do? How does it work? Where is it located?
10) What is the ultimate acceptor of electrons in aerobic cellular respiration?
11) What is the theoretical energy harvest (in ATP molecules) for the complete aerobic oxidation of one glucose molecule?
12) What is the actual (measured) energy harvest (in ATP molecules) for the complete aerobic oxidation of glucose?
13) What is the harvest from glycolysis?
14) Which yields the most energy, glycolysis, or the oxidation of pyruvate to CO2 and H20 including the action of the electron transport chain?
15) What are a few feedback inhibition controls on the oxidation of glucose?
16) What does the overall map of metabolism (catabolism and anabolism)
look like? Why is "acetyl-CoA" a crucial crossroads on this map? What
can be built from acetyl-CoA?
17) What are photosynthetic pigments?
18) Which is the main photosynthetic pigment?
19) Where does photosynthesis take place?
20) What is the "action specturm" of chlorophyll a? (this is the same thing as the absorbtion spectrum).
21) Explain the "antenna complex" and the "reaction center." What happens in each of these parts of the photosystem?
Last Update : Oct 16, 10:30 p.m.