Answers41111de1 ECAD Fall 2026 - Q2 - NM-Biology - S1Light Dependent Reactions in Photosynthesis

Light Dependent Reactions in Photosynthesis Answers

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Which corrections should be made to describe photosynthesis accurately? Check all that apply.

A
(1) Light energy and chemical energy should be switched.
B
(1) Chemical energy should be changed to mechanical energy.
C
(3) Plants that contain chlorophyll should not be included.
D
(3) Oxygen should be changed to carbon dioxide.
E
(4) Animals and plants should be switched.
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A scientist notices an increase in the glucose production in the plants he is studying. What are the possible reasons? Check all that apply.

A
The plant was exposed to more intense light.
B
The plant was exposed to less intense light.
C
The plant absorbed more carbon dioxide.
D
The plant absorbed less carbon dioxide.
E
The plant absorbed more oxygen.
F
The plant absorbed less oxygen.
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Which labels would correctly model photosynthesis?

Answers:
A::Carbon dioxide
B::Light energy
C::Oxygen
D::Glucose
E::Water
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Which labels would correctly model photosynthesis? A: B: C: D: E:

Answers:
Selection 1:Carbon dioxide
Selection 2:Light energy
Selection 3:Oxygen
Selection 4:Glucose
Selection 5:Water
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Which corrections would change the diagram to accurately model the light-dependent reaction of photosynthesis? Check all that apply.

A
CO2 should be changed to H2O.
B
ADP and ATP need to be switched.
C
e– should be changed to H+.
D
Chemical energy should be changed to light energy.
E
PSII and PSI need to be switched.
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What would happen if the electron transport system in the light-dependent reaction of photosynthesis was disabled for some reason?

Answer:

If the electron transport chain (ETC) were disabled, the plant would be unable to produce ATP and NADPH. Without these two energy-carrying molecules, the light-independent reactions (the Calvin cycle) could not take place, which means the plant would be unable to synthesize glucose. Ultimately, the plant would not be able to store energy or maintain its biological functions and would die.

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