AnswersFL-2000310-Biology 1 Sem 1 - FlexLight Dependent Reactions in Photosynthesis

Light Dependent Reactions in Photosynthesis Answers

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Which is considered a scientific observation?

A
Akon explained that cells need energy which is why animals eat food.
B
Jacinta correlated that high sweat levels were due to a high heart rate.
C
Mahir noticed the plants he watered grew taller than those with less water.
D
Kai decided plants are green because of the chlorophyll used to make food.
2
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During the light-dependent reaction of photosynthesis, light energy is converted into which form of energy?

A
chemical
B
mechanical
C
thermal
D
electrical
3

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.
4

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

A
mitochondria
B
stomata
C
stroma
D
thylakoids
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 describes how the photosystems are used in the light-dependent reactions?

A
photosystem I is used first then photosystem II
B
photosystem II is used first then photosystem I
C
Both processes are used at the same time.
D
Both processes are used during the light-independent reactions.
7

The diagram summarizes the light-dependent reactions of photosynthesis. What is the input of the light-dependent reactions, labeled X?

Question illustration
A
CO2, H2O, O2, and light
B
CO2, H2O, and light
C
CO2 and H2O
D
H2O and light
8

Consider the following events of photosynthesis.1. Light energy excites electrons.2. Water molecules are split.3. NADPH is formed.In which locations do each of these events occur?

A
1. photosystem II2. photosystem I3. photosystem I
B
1. photosystem II2. photosystem II3. photosystem I
C
1. photosystem I2. photosystem I3. photosystem II
D
1. photosystem I2. photosystem II3. photosystem II
9

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.
10

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

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