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

Light Dependent Reactions in Photosynthesis Answers

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Which is the site of the light-dependent reactions of photosynthesis?

A
mitochondria
B
stomata
C
stroma
D
thylakoids
2
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Along with plants and algae, in which organisms can photosynthesis occur?

A
some bacteria
B
all fungi
C
some animals
D
all protists
3

Which event occurs in photosystem I?

A
Water molecules are broken apart.
B
Light energy excites electrons.
C
Oxygen is released as waste.
D
Electrons are transferred to ferredoxin.
4

Jasmine and Marcus are at the park, and Jasmine makes the following statements. Which of them is an inference?

A
The leaves are green.
B
The flowers are breathtaking.
C
The plant is producing oxygen.
D
The bush has thorns.
5

Which is the best description of photophosphorylation?

A
the absorption of light energy by chlorophyll
B
the conversion of light energy to chemical energy
C
the removal of a phosphate group from a molecule
D
the conversion of ADP to ATP using light energy
6

Which best lists the end products of the light-dependent reactions of photosynthesis?

A
ATP and NADPH
B
CO2 and H2O
C
ATP, NADPH, and O2
D
C6H12O6 and O2
7

How is ADP converted to ATP?

A
by the addition of one adenosine molecule
B
by the addition of one phosphate group
C
by the removal of one adenosine molecule
D
by the removal of one phosphate group

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