4225814
Descripción
Test por alys.caldwell, actualizado hace más de 1 año
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Creado por alys.caldwell
hace casi 9 años
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Pregunta 1
Pregunta
Which of the following affects the rate of photosynthesis?
Respuesta
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light intensity
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water
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temperature
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all of the above
Pregunta 2
Pregunta
What are the products of the light-dependent reactions?
Respuesta
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oxygen gas
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ATP
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NADPH
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all of the above
Pregunta 3
Pregunta
In the light reactions of photosynthesis, which is the molecule complex that energizes electrons just before going to the Calvin cycle?
Respuesta
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photosystem 2
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ATP synthase
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electron transport chain
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photosystem 1
Pregunta 4
Pregunta
Ingenhousz showed that plants produce oxygen bubbles when exposed to
Respuesta
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ATP
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carbon dioxide
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a burning candle
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light
Pregunta 5
Pregunta
What is a product of the Calvin cycle?
Respuesta
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glucose
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oxygen gas
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carbon dioxide
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ATP
Pregunta 6
Pregunta
Plants gather the sun's energy with light-absorbing molecules called
Respuesta
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glucose
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pigments
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thylakoids
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chloroplasts
Pregunta 7
Pregunta
The Calvin cycle takes place in the
Respuesta
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photosystems
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stroma
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thylakoid membranes
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chlorophyll molecules
Pregunta 8
Pregunta
Jan van Helmont concluded that plants gain most of their mass from
Respuesta
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the soil
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oxygen in the air
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carbon dioxide in the air
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water
Pregunta 9
Pregunta
How does carbon dioxide get into the plant?
Respuesta
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thylakoids
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stomata (stomates)
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roots
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osmosis
Pregunta 10
Pregunta
What is the name of the enzyme that combines CO2 with a 5-carbon molecule to begin the Calvin cycle?
Respuesta
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ATP synthase
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Rubisco
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Polycalvinase
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Deoxyribonase
Pregunta 11
Pregunta
What is the 5-carbon molecule in the Calvin Cycle that joins with the incoming CO2?
Respuesta
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ribose
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AUG
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deoxyribose
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RuBP
Pregunta 12
Pregunta
If carbon dioxide is removed from a plant's environment, what would you expect to happen to its production of high-energy sugars?
Respuesta
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No sugars will be produced.
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The same number of sugars will be produced but without carbon dioxide.
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More sugars will be produced.
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Carbon dioxide does not affect the production of high-energy sugars in plants.
Pregunta 13
Pregunta
The Calvin cycle is another name for
Respuesta
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light-independent reactions
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photosynthesis
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light-dependent reactions
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all of the above
Pregunta 14
Pregunta
Which of the following is an autotroph?
Respuesta
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tree
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monkey
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dog
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mushroom
Pregunta 15
Pregunta
What term describes the chemical reaction that ADDs electrons to a molecule?
Respuesta
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reduction
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transformation
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chargification
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oxidation
Pregunta 16
Pregunta
Most plants appear green because chlorophyll
Respuesta
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absorbs green light
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does not absorb green light
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does not absorb violet light
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does not absorb red light
Pregunta 17
Pregunta
A granum is a(an)
Respuesta
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photosynthetic pigment molecule
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membrane enclosing a thylakoid
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stack of chloroplasts
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stack of thylakoids
Pregunta 18
Pregunta
According to your reading, if you continue to increase the intensity of light that a plant receives, what happens?
Respuesta
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The rate of photosynthesis increases and then levels off.
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The rate of photosynthesis does not change.
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The rate of photosynthesis increases with light intensity.
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The rate of photosynthesis decreases with light intensity.
Pregunta 19
Pregunta
Energy is released from ATP when
Respuesta
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ATP is exposed to sunlight
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a phosphate group is removed
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a phosphate group is added
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adenine bonds to ribose
Pregunta 20
Pregunta
Which of the following is NOT a part of an ATP molecule?
Respuesta
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phosphate
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adenine
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chlorophyll
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ribose
Pregunta 21
Pregunta
The light-collecting units of a chloroplast are the
Respuesta
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stroma
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electron carriers
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high-energy sugars
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photosystems
Pregunta 22
Pregunta
Which step is the beginning of photosynthesis?
Respuesta
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HIgh-energy electrons move through the electron transport chain
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Pigments in photosystem I absorb light
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Pigments in photosystem II absorb light
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ATP synthase allows H+ ions to pass through the thylakoid membrane
Pregunta 23
Pregunta
The stroma is the space that surrounds
Respuesta
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thylakoids
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plant cells
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chloroplasts
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all of the above
Pregunta 24
Pregunta
Which scientists showed that plants need light to produce oxygen?
Respuesta
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Priestley and Calvin
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Priestley and Ingenhousz
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van Helmont and Calvin
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van Helmont and Priestley
Pregunta 25
Pregunta
Which of the following is NOT required for photosynthesis to occur?
Respuesta
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water
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carbon dioxide
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oxygen
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light
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