AP Cell Respiration
When you click Submit (at the bottom of this web page) it will save your
work on the server for me. If you get a "proxy error" hit -refresh- until you
get a "Thanks"
You might want to actually write your answers in Word (so you can spell
check them) and then cut-and-paste into the boxes. That way, if the computer
misplaces your work you can just re-paste the answers.
Since we may work on this over more than one day, and you can work at home, I will keep track of what
you have done. Feel free to click submit as you work to save your work to the
server. I have however tried to keep the size of the assignment small
enough that you should be able to do it in one session.
TAB OR USE THE MOUSE Between the
Answer the questions as best you can. The boxes will expand as you type if you need more space.
(Don't worry if it is a one word answer. The box size is standard.)
Since you will be working in groups, put all the names of the people in the
group in the box. The ideal group size is 2. As an exception I will allow groups
of 3. No groups of 4 or 5. If you work as a group of 3 I expect better answers.
Group sizes above 3 will be penalized in the grading.
Click on the link below, and switching between this
document and the open browser answer the questions. Most of the answers can be
found through observation, but some require thought or research on the web.
Spend a couple of minutes “playing” at each site to
figure out how it works. Some have an audio track, and I'd REALLY appreciate it
if you used headphones.
Cell Respiration Computer Activity
This site looks at the "missing step" in cellular
Question 1: How much ATP is made directly (substrate level
phosphorylation) in this missing step? How much ATP is made indirectly (as a
result of reduced intermediates) from this step?
This is a College Biochemistry site.
Don't get bogged down in the detail. I do not expect you to know the
molecules, but make sure you understand the "gist" of what is going
Don't worry about the sorting step, just "continue."
Question 2: What are the products of the citric acid cycle? What is
meant by "reducing power?"
Question 3: Now, why are membranes important???? What would
happen if small holes developed in the mitochondrial inner membrane that allowed
a back flow of hydrogen ions?
How many protons (count carefully) are pumped across for each NADH (2
electrons)? Why does FADH2 produce less ATP than NADH (be
Question 4: Is there a direct linkage between the TCA cycle and oxidative
Question 5: Compare substrate level phosphorylation to
Question 6: Did these animations help? Which site did you
find the most useful?.