Chapter 8 Photosynthesis
Supplemental Instruction
Iowa State University
Leader:
Course:
Instructor:
Date:
Stephanie
Bio 212
Howell & Sakaguchi
Sept 25, 2013
Study Tip: Dr. Howell posted the answer key to Exam 1. Check it out and make sure you understand your mistakes so you won’t make
them on the final exam!
Review:
The electron transport chain is so named because the electrons are transported from one component to another. Describe the purpose
of the electron transport chain.
Certain drugs act as ionophores that cause the mitochondrial membrane to be highly permeable to H+. How would such drugs affect
oxidative phosphorylation?
Where does each step of cellular metabolism occur?
Photosynthesis
Name
Location
What happens? (Drawing a picture
helps)
What is
consumed?
What is
produced?
Chloroplast anatomy: Draw a chloroplast. Label the 3 membranes, intermembrane space, thylakoid, thylakoid lumen, granum, &
stroma
1060 Hixson-Lied Student Success Center  515-294-6624  [email protected]  http://www.si.iastate.edu
29.1. What is different about glycolysis as compared to the tricarboxylic acid (TCA) cycle?
A) Glycolysis can be an anaerobic process, whereas the TCA cycle requires oxygen.
B) Glycolysis takes place in mitochondria, where the the TCA cycle occurs in the cytoplasm.
C) ATP is made in the TCA cycle by substrate level phosphorylation, whereas ATP is made in glycolysis by
oxidative phosphorylation.
D) All of the above
32.1. Let’s assume that you have been working out on a treadmill and using a lot of ATP. You stop and plop
down in front of the TV for a while and your muscles replenish the supply of ATP. What likely happens in the
mitochondria of your muscle cells once you have rested and the supply of ATP has been replenished?
A) Electron transport will speed up in anticipation of the next time you exercise.
B) Electron transport will slow down because a strong proton motive force (PMF) has been re-established.
C) Electron tranport will speed up because ATP synthesis has slowed.
D) Electron tranport will slow down because the PMF has been dissapated.
35.1. What products of the light reactions are used by the Calvin cycle to fix CO2 into sugars (carbohydrates).
A) O2
B) NADH and ADP
C) ATP and NADPH
D) FADH2 and ATP
33.1. From what you know about photosynthesis, which of the above experiments with sea grass will produce
18
O2? (Assume that light is shining on the flasks.)
A) Experiment 1
B) Experiment 2
C) Both experiments