Download Notes on Cellular Respiration from reading “How Cells Convert

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Notes on Cellular Respiration from reading “How Cells Convert Food into Energy” (p. 340-343)
1. What is cellular respiration (see glossary!)?
2. How is breathing different from cellular respiration?
3. What is respiration with oxygen called?
4. How is oxygen used and why is it so important to cellular respiration? Why don’t we just use
nitrogen for cellular respiration?
5. Fill in the blanks of this drawing that show the three main stages of cellular respiration. The
blanks at the bottom are asking you to find out how many ATPs are made for each step (this
information is found throughout the reading).
6. What are the inputs and what are the outputs of cellular respiration?
7. What is glycolysis? What goes in and what comes out?
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8. Compare the three energy-rich molecules made from glycolysis: ATP, NADH, and Pyruvate.
Energy-rich molecule
What is it made
from?
Where is it used?
What is it like?
Describe it!
ATP
NADH
Pyruvate
9. The Krebs cycle happens next.
a. What are the inputs? Where do they come from?
b. What are the outputs? What are they used for or where do they go?
10. Why does the Krebs cycle have to go through two passes?
11. Electron Transport Chain:
a. What are the inputs? From which previous steps in respiration do they come?
b. What happens to the H atoms in NADH?
c. What do the electrons do from the H broken off of NADH?
d. What do the protons do from the H broken off of NADH? How is it like water behind a
dam?
e. What happens to the rejoined protons and electrons of the H broken off from NADH?
What element do they join up with? What does it say about our need to breathe?
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12. Fill in the blanks. You may not be able to find all of it in the book, but fill in as much as you can.
13. What is the chemical formula for cellular respiration?
14. Fill in the Venn diagram below, comparing the following information for aerobic respiration vs.
anaerobic respiration.
a. Inputs
b. ATP yield (example: small amount or large amount)
c. Stopping point
d. What kind of organisms would use each, in what kind of circumstances?
Aerobic
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Anaerobic