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Photosyn./Cell Resp.
Question Answer
Which of these is a product of cellular respiration? Water
Which structures shown in figure 8-1 make up an ATP molecule? A, B, C, and D
Either cellular respiration or fermentation can be used to release energy, depending on the presence of carbohydrates. False
NADH and FADH2 carry electrons from the Krebs cycle to the electron transport chain. True
Which pathway represents the flow of electrons during photosynthesis? b. H2O ® NADPH ® Calvin cycle
Which organism is NOT likely to carry out cellular respiration? Anaerobic bacterium
In eukaryotes, electron transport occurs in the Mitochondria
A granum is a stack of thylakoids.
The Calvin cycle is another name for light-independent reactions.
Organisms that cannot make their own food and must obtain energy from the foods they eat are called heterotrophs.
Cellular respiration releases energy by breaking down glucose in the presence of carbon dioxide. False
The Krebs cycle does not occur if fermentation occurs.
The products of photosynthesis are the reactants of cellular respiration.
Why does the inside of the thylakoid membrane become positively charged during the light-dependent reactions? H+ ions are released as water splits.
Which of the following is inside the thylakoid membrane? all of the above
Most plants appear green because chlorophyll does not absorb green light.
Which of the following acts as an electron carrier in cellular respiration? NAD+
Photosynthesis uses sunlight to convert water and carbon dioxide into oxygen and high-energy sugars and starches.
In prokaryotes, the electron transport chain is located in the inner membrane of the mitochondria False
Which step is the beginning of photosynthesis? Pigments in photosystem II absorb light.
The Krebs cycle produces electron carriers.
The complex folds in the inner membrane of the mitochondria are called cristae.
The two main types of fermentation are called alcoholic and lactic acid.
Which process does NOT release energy from glucose? photosynthesis
Plants take in the sun’s energy by absorbing sunlight.
ADP is one of the principal chemical compounds that living things use to store energy. False
Which of the following is the correct sequence of events in cellular respiration? glycolysis ® Krebs cycle ® electron transport
Which of the following is false? A stroma contains a thylakoid.
Cellular respiration uses one molecule of glucose to produce 36-38 ATP molecules.
The starting molecule for glycolysis is glucose
The stroma is the region outside the thylakoids
In the presence of oxygen, glycolysis is followed by the Krebs cycle
If carbon dioxide is completely removed from a plant’s environment, what would you expect to happen to the plant’s production of high-energy sugars? No sugars will be produced
How does the Calvin cycle differ from the light-dependent reactions? It takes place in the stroma
Which of the following is NOT a product of glycolysis? glucose
What would you expect to happen to plants at temperatures greater than 45°C? they will have a less than optimal rate of photosynthesis
What are the reactants in the equation for cellular respiration? glucose and oxygen
The structure labeled A in Figure 8–3 contains chlorophyll. false
Which of the graphs in Figure 8–2 represents the effect of light intensity on the rate of photosynthesis? A
The energy in most food comes originally from sunlight. False
Glycolysis provides a cell with a net gain of 2 ATP molecules
Plants cannot release energy from glucose using Photosynthesis
Plants gather the sun’s energy with light-absorbing molecules called Pigments
Which of these processes takes place in the cytoplasm of a cell? Glycolysis
In Figure 8–1, between which parts of the molecule must the bonds be broken to form an ADP molecule? C and D
Which of the graphs in Figure 8–2 represents the effect of temperature on the rate of photosynthesis? C
What are the three parts of an ATP molecule? Adenine, ribose, and phosphate groups
In the overall equation for photosynthesis, six molecules of carbon dioxide result in six molecules of Oxygen
What are the products of the light-dependent reactions? All of the above
Which process is used to produce beer and wine? Alcoholic fermentation
Which of the following is NOT a stage of cellular respiration? Fermentation
If an animal cell stops carrying out cellular respiration, it will die. True
What is a product of the Calvin cycle? High energy sugars
Where in the chloroplast is chlorophyll found? In the thylakoid
The starting molecule for the Krebs cycle is Pyruvic acid
If you continue to increase the intensity of light that a plant receives, what happens? The rate of photosynthesis increases then levels off
The electron transport chain can be found in All of the above
Which of the following is an autotroph? Tree
Lactic acid fermentation occurs in Muscle cells
During lactic acid fermentation, NAD+ is regenerated, allowing glycolysis to continue.
If you grind up the chloroplasts found in spinach leaves into a liquid solution, the solution will have a green color. True
If carbon dioxide is not present, the pathway labeled C in Figure 9–1 usually will not occur. False
The fluid inside the mitochondria is called Matrix
The pathway labeled B in Figure 9–1 is called glycolysis. False
During the light-dependent reactions, plants use the energy in ATP and NADPH to build high-energy sugars. False
The conversion of pyruvic acid into lactic acid requires NADH
Energy is released from ATP when A phosphate group is removed
Where are photosystems I and II found? In the thylakoid membrane
Look at Figure 8–1. All of the following are parts of an ADP molecule EXCEPT Structure D
Each pair of high-energy electrons from NADH that moves down the electron transport chain provides enough energy to Convert 3 ADP molecules into 3 ATP molecules
The Krebs cycle releases energy in the form of ATP. True
Which region of the visible spectrum is not absorbed well by chlorophyll? Green
Which of the following is released during cellular respiration? Energy
Which of the following is NOT a part of an ATP molecule? Chlorophyll
How are cellular respiration and photosynthesis almost opposite processes? Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back.
Plants gather the sun’s energy with light-absorbing molecules called pigments. True
Unlike photosynthesis, cellular respiration occurs in All eukaryotic cells
Where do the light-dependent reactions take place? Within the thylakoid membranes
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 Oxygen
Photosynthesis is to chloroplasts as cellular respiration is to Mitochondria
The products of glycolysis are 2 ATP, 2 NADH, and 2 pyruvic acid molecules. True
Cellular respiration is called an aerobic process because it requires Oxygen
The Calvin cycle takes place in the Stroma
The Krebs cycle starts with Pyruvic acid and yields carbon dioxide
What is the correct equation for cellular respiration? 6O2 + C6H12O6® 6CO2 + 6H2O + Energy
Which of the following affects the rate of photosynthesis? All of the above
The substance represented in Figure 8–1 is called ATP True
Which of the following carries high-energy electrons into the electron transport chain? NADH and FADH2
Which of the following is NOT a true statement about ATP? Used ATP is discarded by the cell as waste.
Cellular respiration releases energy by breaking down Food molecules
Without the Krebs cycle, the electron transport chain would produce very few ATPs. True
Milk is converted to yogurt under certain conditions when the microorganisms in the milk produce acid. Which of these processes would you expect to be key in the production of yogurt? Lactic acid fermentation
The reactants of photosynthesis are the same as the reactants of cellular respiration. False
Which of the following is NOT an example of a heterotroph? Grass
Organisms, such as plants, that make their own food are called Autotrophs
Glycolysis requires An energy input
The energy of the electrons passing along the electron transport chain is used to make ATP
Which of the following is NOT a step in the light-dependent reactions? ATP and NADPH are used to produce high-energy sugars
One cause of muscle soreness is Lactic acid fermentation
Which of the following is NOT used in the overall reaction for photosynthesis? ATP
If a plant is placed in a greenhouse held at 40°C, the plant will probably increase its normal rate of photosynthesis. False

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