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

Light Independent Reactions in Photosynthesis Answers

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In the chemical equation for photosynthesis, carbon dioxide and water are converted to glucose and oxygen.6CO2 + 6H2O ® C6H12O6 + 6O2Which component could be added to complete this chemical equation?

A
light energy
B
ATP and NADPH
C
chemical energy
D
rubisco
2
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What is one role of ATP in the light-independent reaction of photosynthesis?

A
ATP supplies the energy to produce glucose and other carbohydrates.
B
ATP is produced when water molecules are split and chlorophyll electrons are excited.
C
ATP supplies the energy to split water molecules.
D
ATP produces CO2 and O2 molecules.
3

What is required for both the light-dependent and light-independent reactions to proceed?

A
energy
B
CO2
C
water
D
ATP and NADPH
4

Which statement about the light-independent reactions in photosynthesis is true?

A
They occur in the thylakoids.
B
They produce ATP and NADPH.
C
They release oxygen as waste.
D
They comprise the Calvin cycle.
5

Which process occurs during the light-dependent reactions in photosynthesis?

A
Water molecules are split.
B
Carbon fixation occurs.
C
PGA is reduced.
D
RuBP is regenerated.
6

Which is an important difference between light-dependent (L-D) and light-independent (L-IND) reactions in photosynthesis?

A
The L-D reactions need CO2 and light energy, and the L-IND reactions needs water and O2.
B
The L-D reactions require light energy and water, and the L-IND reactions require ATP, NADPH, and CO2.
C
The L-D reactions can only occur during daylight, and the L-IND reactions can only occur during the night.
D
The L-D reactions need water and CO2, and the L-IND reactions need CO2 and light.
7

Which compound is produced during regeneration?

A
PGA
B
G3P
C
RuBP
D
rubisco

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