Exam – Sections 4.1, 4.2, and 4.4
Teacher: Mr. Nebbe
1.
What is this molecule?
a. Adenosine triphosphate
b. Adenosine diphosphate
2. How is energy released from a molecule of ATP?
a. By combining a molecule of ATP and ADP
b. By removing the third phosphate from a molecule of ATP
c. By lowering the activation energy of a phosphate group in a molecule of ATP
d. By adding a phosphate group to a molecule of ATP
3. Which is the most commonly utilized molecule for producing ATP by your body?
a. Triglycerides
b. Glucose
4. What kind of molecule provides the most ATP when it is broken down?
a. Lipid
b. Carbohydrate
c. Protein
d. Starch
5. How is ADP converted into ATP?
a. One phosphate group is added to ADP but no extra energy is required.
b. One phosphate group is added to ADP, which requires the cell to expend additional energy.
6. Why do organisms need to digest their food?
a. In order to extract the ATP found in food.
b. To break down food into smaller molecules, which cells can use to make ATP.
c. Because as food is digested, energy is released to the body.
d. To free up the amino acids in food so cells can create ATP.
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7. Your body uses the energy in ATP to power which of the following activities?
a. Biosynthesis (for example, the making of proteins)
b. Thermogenesis
c. Muscle contractions
d. All of the above
8. What does ATP stand for? _______________________________________
Use the diagram above for questions 9-12.
9. What type of organelle is it? ______________________________
10. Please clearly label on the diagram above, in the corresponding box, a thylakoid.
11. Please clearly label, in the corresponding box, a granum.
12. Please clearly label, in the corresponding box, the stroma.
13. Where is chlorophyll found in the chloroplast?
a. It is found in the chloroplast’s stroma.
b. It is found in the thylakoids.
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14. Chlorophyll is a key component of the . . .
a. Light-dependent reactions
b. Light-independent reactions
15. What is the role of chlorophyll in photosynthesis?
a. Chlorophyll removes phosphate groups from ATP to make high energy molecules.
b. Chlorophyll converts ultraviolet light to visible light the chloroplast can use.
c. Chlorophyll absorbs some light waves in the visible light spectrum.
d. Chlorophyll absorbs green light the plant can use to make glucose.
16. Where do the light-dependent reactions take place in the chloroplast?
a. In the stroma of the chloroplast
b. Across the intermembrane wall of mitochondria
c. Within and across a chloroplast’s thylakoids
d. In the plant cell’s cytoplasm
17. What are the stacks of thylakoids called?
a. Grana
b. Stroma
c. Cytoplasm
d. None of the above
18. What reactant is needed for the light-independent reactions to take place?
a. Oxygen
b. Water
c. Sunlight
d. Carbon dioxide
19. Which of the following molecules is made during the light-independent reactions in the chloroplast?
a. Glucose
b. Carbon dioxide
c. Oxygen
d. None of the above
20. What is the principle function of cellular respiration?
a. It produces oxygen so the cell can breathe.
b. It produces ATP for cellular activity.
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21. If a process is aerobic, it means that . . .
a. It is dependent on glycolysis.
b. It requires inputs of ATP for it to work.
c. It requires oxygen to work.
d. None of the above
22. If a process is anaerobic, it means that . . .
a. It does not need oxygen to work.
b. It requires inputs of ATP for it to work.
c. It requires oxygen to work.
d. None of the above
23. Glycolysis is what type of process?
a. Aerobic
b. Anaerobic
24. There are two stages to cellular respiration, the electron transport chain (ETC) and the Krebs cycle.
Looking at the diagram below, indicate, in the boxes provided, which stage (one or two) corresponds
to the ETC and which (one or two) corresponds to the Krebs cycle (worth 2 points).
Stage 1:
Stage 2:
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25. How are glycolysis and cellular respiration connected?
a. Glycolysis’s primary function is to provide ADP to the Krebs cycle.
b. Glycolysis produces the carbon dioxide mitochondria need for cellular respiration.
c. Cellular respiration provides the glucose glycolysis needs to take place.
d. The mitochondria utilize the products of glycolysis to power cellular respiration.
26. What are the reactants in cellular respiration?
a. One 6 carbon molecule from glycolysis and carbon dioxide.
b. Three-carbon molecules from glycolysis and oxygen.
c. Three-carbon molecules from glycolysis and carbon dioxide.
d. None of the above
27. Where does the Krebs cycle take place?
a. In the cell’s cytoplasm
b. In the Golgi apparatus
c. In the matrix of the mitochondrion
d. In the chloroplast
28. What are the primary products of the Krebs cycle?
a. Glucose and ATP
b. Energy carrying molecules for the electron transport chain and carbon dioxide.
c. Oxygen and ADP for the electron transport chain.
d. ATP and ADP
29. What is transferred from the Krebs cycle to the electron transport chain?
a. Water and ADP
b. ADP and oxygen
c. High energy molecules to make ATP
d. ATP to make high energy molecules
30. What are the primary products of the electron transport chain?
a. ATP and water
b. Lots of ADP and water
c. ATP and carbon dioxide
d. None of the above
31. What are the products of cellular respiration?
a. Water, ATP, and carbon dioxide.
b. Water, oxygen, and ATP
c. Water, oxygen, and hydrogen ions
d. None of the above
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32. (Challenge question – 5 points) Photosynthesis and cellular respiration are said to be mirrors of one
another. What does that mean? Please explain - your explanation can either describe in words the
relationship (telling me how reactants and products of both processes are related) or you can
express the relationship as chemical equations.
33. (Challenge question – 3 points) Chloroplasts and mitochondria are said to be endosymbionts. What
does that mean and why is it important?
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