Cellular Respiration
Name_______________________________________________________
Cellular Respiration
1. What are the 3 phases of the cellular respiration process? 1. ________________________________________________ 2. ________________________________________________ 3. ________________________________________________
2. Write the overall equation for cellular respiration.
3. In which phase of cellular respiration is carbon dioxide made?
4. In which phase of cellular respiration is water made?
5. Cellular respiration is considered aerobic because it uses __________________________________.
5. Which of the following is NOT a stage of cellular respiration?
a. fermentationb. electron transport chain
c. glycolysis
d. Krebs cycle
6. Which of the following is the correct sequence of events in cellular respiration? a. glycolysis fermentation Krebs cycle b. Krebs cycle electron transport chain glycolysis c. glycolysis Krebs cycle electron transport chain d. Krebs cycle glycolysis electron transport chain
7. Which of the following is released during cellular respiration?
a. oxygen
b. air
c. energy
d. lactic acid
8. Cellular respiration uses ___ Glucose molecule to produce a net ____ ATP.
9. What are the reactants in the equation for cellular respiration?
a. oxygen and lactic acid
b. carbon dioxide and water
c. glucose and oxygen
d. water and glucose
10. Which of these processes takes place in the cytoplasm of a cell?
a. glycolysis
b. electron transport
c. Krebs cycle
d. all of the above
11. All of the following are sources of energy during exercise EXCEPT
a. stored ATP.
b. alcoholic fermentation.
c. lactic acid fermentation. d. cellular respiration.
12. Which process does NOT release energy from glucose?
a. glycolysis
b. photosynthesis
c. fermentation
d. cellular respiration
13. Photosynthesis is to chloroplasts as cellular respiration is to
a.
chloroplasts.
b. cytoplasm.
c.
mitochondria.
d. nuclei.
14. Unlike photosynthesis, cellular respiration occurs in
a. animal cells only.
b. plant cells only.
c. All cells except plant cells. d. all eukaryotic cells.
Step 1: Glycolysis
1. Where in the cell do the glycolysis reactions take place?
2. What is the starting molecule for glycolysis?
3. What is the net gain of ATP for glycolysis? 4. How many molecules of pyruvate are made from a single molecule of glucose? 5. What molecule stores the high-energy electrons (and hydrogen) removed from glucose in glycolysis? 6. Where does the glucose come from to do glycolysis? 7. Does oxygen need to be present for glycolysis? 8. Explain what will happen after glycolysis if oxygen is present, and explain how that's different if oxygen is not
present.
Step 2: Kreb's Cycle 1. What is the difference between an aerobic reaction and an anaerobic reaction?
2. Where in the cell does the Krebs (Citric Acid) cycle part of cellular respiration occur? 3. What is the starting molecule for the Kreb's Cycle? 4. What is the goal of the Kreb's Cycle?
5. How many ATP are made in the Kreb's cycle part of cellular respiration?
Step 3: Electron Transport Chain 6. What is the goal of the ETC? 7. How many ATP are made in the electron transport part of cellular respiration? 8. Where in the cell does the electron transport part of cellular respiration occur? Why?
9. What substance NEEDS to be present in order for Kreb's Cycle and ETC to happen? (hint* it makes this process aerobic)
10. What are NAD+ and FAD? What do they do and what do they become?
11. The energy of the electrons passing along the electron transport chain is used to make
a. lactic acid.
c. citric acid.
b. alcohol.
d. ATP
12. Which of the following passes high-energy electrons into the electron transport chain?
a. NADH and FADH2 b. ATP and ADP
c. citric acid
d. acetyl ? CoA
Label the Correct Stage of Cellular Respiration ____________________________
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