Glossary of Biology Unit 6 practice test
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- Which of the following is NOT an example of a heterotroph?
- c. grass
- What are the three parts of an ATP molecule?
a.adenine, thylakoids, stroma
c.adenine, ribose, phosphate groups
b.stroma, grana, chlorophyll
d.NADH, NADPH, and FADH2
- c. adenine, riose, phosphate groups
- Energy is released from ATP when
a.a phosphate group is added.
c.ATP is exposed to sunlight.
b.adenine bonds to ribose.
d.a phosphate group is removed.
- d. a phosphate group is removed
- In Figure 8–1, between which parts of the molecule must the bonds be broken to form an ADP molecule?
a.A and B
c.C and D
b.B and C
d.all of the above
- c. C and D
- Jan van Helmont concluded that plants gain most of their mass from
c.carbon dioxide in the air.
d.oxygen in the air.
- a. water
- A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27°C. The gas being collected is probably
- a. oxygen
- Photosynthesis uses sunlight to convert water and carbon dioxide into
b.high-energy sugars and starches.
c.ATP and oxygen.
d.oxygen and high-energy sugars and starches.
- d. oxygen and high-energy sugars and starches
- In the overall equation for photosynthesis, six molecules of carbon dioxide result in six molecules of
- c. oxygen
- Which region of the visible spectrum is not absorbed well by chlorophyll?
a. blue c. green
b. violet d. red
- c. greeb
- A granum is a
a. stack of chloroplasts. c. membrane enclosing a thylakoid.
b. stack of thylakoids. d. photosynthetic pigment molecule.
- b. stack of thylakoids
- The stroma is the region outside the
a. thylakoids. c. plant cells.
b. chloroplasts. d. all of the above
- a. thylakoids
- Which of the following is false?
a. A chloroplast contains stroma. c. A granum contains several thylakoids.
b. A stroma contains a thylakoid. d. A thylakoid contains chlorophyll.
- b. A stroma contains a thylakoid
- Where do the light-dependent reactions take place?
a. in the stroma c. within the thylakoid membranes
b. in the mitochondria d. only in chlorophyll molecules
- c. within the thylakoid membranes
- What are the products of the light-dependent reactions?
a. oxygen gas c. NADPH
b. ATP d. all of the above
- d. all of the above
- Which step is the beginning of photosynthesis?
a. Pigments in photosystem I absorb light.
b. Pigments in photosystem II absorb light.
c. High-energy electrons move through the electron transport chain.
d. ATP synthase allows
- b. Pigments in Photosystem II absorb light.
- Why does the inside of the thylakoid membrane become positively charged during the light-dependent reactions?
a. H+ ions are released as water splits.
b. ATP synthase allows H+ ions to pass through the membrane.
c. ATP synthase pr
- a. H+ ions are released as water splits
- Which pathway represents the flow of electrons during photosynthesis?
a. H2O ® Photosystem I ® Photosystem II
b. O2 ® ADP ® Calvin cycle
c. Photosystem I ® Calvin cycle ® NADPH
d. H2O ® NADPH ® Calvin cycle
- d. H2O NADPH Calvin Cycle
- Where are photosystems I and II found?
a. in the stroma c. in the Calvin cycle
b. in the thylakoid membrane d. all of the above
- b. in the thylakoid membrane
- The Calvin cycle is another name for
a. light-independent reactions. c. photosynthesis.
b. light-dependent reactions. d. all of the above
- a. light-independednt reactions
- The Calvin cycle takes place in the
a. stroma. c. thylakoid membranes.
b. photosystems. d. chlorophyll molecules.
- a. stroma
- How does the Calvin cycle differ from the light-dependent reactions?
a. It takes place in the stroma. c. It requires light.
b. It takes place in chloroplasts. d. It takes place in the thylakoid.
- a. It takes place in the stroma
- Which of the following is NOT a stage of cellular respiration?
a. fermentation c. glycolysis
b. electron transport d. Krebs cycle
- a. fermentation
- Which of the following is the correct sequence of events in cellular respiration?
a. glycolysis ® fermentation ® Krebs cycle
b. Krebs cycle ® electron transport ® glycolysis
c. glycolysis ® Krebs cycle ® electron transport
- c. glycolosis Krebs cycle electron transport
- Which of the following is released during cellular respiration?
a. oxygen c. energy
b. air d. lactic acid
- c. energu
- What is the correct equation for cellular respiration?
a. 6O2 + C6H12O6 ® 6CO2 + 6H2O + Energy
b. 6O2 + C6H12O6 + Energy ® 6CO2 + 6H2O
c. 6CO2 + 6H2O ® 6O2 + C6H12O6 + Energy
d. 6CO2 + 6H2O + Energy ® 6O2 + C6H12O6
- a. 6O2+C6H12O6 6C02+6H20+Energy
- Cellular respiration releases energy by breaking down
a. food molecules. c. carbon dioxide.
b. ATP. d. water.
- a. food molecules
- Which of these processes takes place in the cytoplasm of a cell?
a. glycolysis c. Krebs cycle
b. electron transport d. all of the above
- Glycolysis provides a cell with a net gain of
a. 2 ATP molecules. c. 18 ATP molecules.
b. 4 ATP molecules. d. 36 ATP molecules.
- d. 36 ATP molecules
- The starting molecule for glycolysis is
a. ADP. c. citric acid.
b. pyruvic acid. d. glucose.
- d. glucose
- Glycolysis requires
a. an energy input.
c. hours to produce many ATP molecules.
- a. an energy input
- Which of the following acts as an electron carrier in cellular respiration?
a. NAD+ c. ADP
b. pyruvic acid d. ATP
- a. NAD+
- Lactic acid fermentation occurs in
a. bread dough. c. muscle cells.
b. any environment containing oxygen. d. mitochondria.
- c. muscle cells
- The two main types of fermentation are called
a. alcoholic and aerobic. c. alcoholic and lactic acid.
b. aerobic and anaerobic. d. lactic acid and anaerobic.
- c. alcoholic and lactic acid
- In the presence of oxygen, glycolysis is followed by
a. lactic acid fermentation. c. photosynthesis.
b. alcoholic fermentation. d. the Krebs cycle.
- d. the Krebs cycle
- The starting molecule for the Krebs cycle is
a. glucose. c. pyruvic acid.
b. NADH. d. coenzyme A.
- c. pyruvic acid
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