Which of the following best describes the overall equation for photosynthesis?

C6H12O6 + 6 O2 → 6CO2 + 6 H2O

6 CO2 + 12 H2O→ C6H12O6 + 6 O2 + 6 H2O

6 CO2 + 12 H2O + light energy → C6H12O6 + 6 O2 + 6 H2O

What is photolysis and why is it significant in photosynthesis?

Splitting of water molecules to release oxygen

Fixing carbon dioxide into glucose

What is the importance of the Calvin cycle in photosynthesis?

Fixes carbon dioxide into glucose

Converts light energy to chemical energy

What is a key difference between C3 and C4 photosynthesis pathways?

C4 fixes carbon dioxide into a four-carbon compound first

C3 uses the Calvin cycle, C4 does not

C3 is more efficient in hot climates

How do CAM plants differ from C3 and C4 plants in their photosynthetic processes?

They fix carbon dioxide at night

They split water molecules at night

What is photorespiration and how does it impact photosynthesis efficiency?

Consumes oxygen and releases carbon dioxide, reducing efficiency

Fixes carbon dioxide into glucose

Splits water molecules to release oxygen

What is the role of ATP and NADPH in the Calvin cycle?

Provide energy and reducing power

What are stomata and how do they regulate gas exchange in plants?

Openings on leaf surfaces that allow gas exchange

Structures that fix carbon dioxide

How is the structure of a chloroplast adapted to its function in photosynthesis?

Contains thylakoid membranes for light-dependent reactions

What is the significance of the thylakoid membrane in the light-dependent reactions?

Contains chlorophyll to capture light energy

Fixes carbon dioxide into glucose

Transports water throughout the plant

What is the role of the electron transport chain in photosynthesis?

Transfers electrons to produce ATP and NADPH

How does the proton gradient contribute to ATP synthesis in the light-dependent reactions?

Drives the production of ATP through ATP synthase

Why is carbon fixation important in the Calvin cycle?

Converts inorganic carbon into organic compounds

How do the light-independent reactions of photosynthesis depend on the light-dependent reactions?

They use ATP and NADPH produced in the light-dependent reactions

What is the process of carbon fixation in C4 plants?

Carbon dioxide is fixed into a four-carbon compound

Carbon dioxide is fixed directly into glucose

Carbon dioxide is fixed into a three-carbon compound

Carbon dioxide is fixed into water

How do environmental conditions, such as light intensity and temperature, affect photosynthesis?

They can increase or decrease the rate of photosynthesis

They have no effect on photosynthesis

They determine the color of the plant

What is photosynthetic efficiency and what factors can influence it?

The ability of plants to convert light energy into chemical energy; influenced by light, carbon dioxide, and temperature

The speed of water transport in plants; influenced by soil quality

The rate of glucose production; influenced by oxygen levels

The amount of chlorophyll in leaves; influenced by leaf size

What is the role of RuBP in the Calvin cycle?

It combines with carbon dioxide to form a six-carbon compound

How do high oxygen levels impact the Calvin cycle and overall photosynthesis?

They increase photorespiration, reducing efficiency

They increase the rate of glucose production

They have no effect on the Calvin cycle

They increase the absorption of light energy

How is oxygen produced during photosynthesis, according to the paragraph?

From water molecules being split

How do ATP and NADPH contribute to the Calvin cycle as described in the paragraph?

They fix carbon dioxide into glucose

They release oxygen as a byproduct

Given that light intensity is a factor affecting the efficiency of photosynthesis, how might plants adapt in environments with low light availability?

Increase the number of chloroplasts in their cells

Close their stomata more frequently

Decrease their chlorophyll content

Considering the impact of temperature on photosynthesis efficiency, what might be the consequences of global warming on photosynthetic rates in plants?

Increased photorespiration, reducing photosynthesis efficiency

Increased rates of photosynthesis across all plant species

Decreased rates of photosynthesis due to heat stress

No significant change in photosynthetic rates

Photosynthesis Quiz

Authored by Lainah Bruh

Biology

10th Grade

Used 5+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of photosynthesis?

To produce oxygen

To produce glucose

To produce carbon dioxide

To produce water

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where in the plant cell does photosynthesis occur?

Mitochondria

Nucleus

Chloroplast

Ribosome

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What pigment is responsible for capturing light energy in photosynthesis?

Chlorophyll

Carotene

Xanthophyll

Anthocyanin

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which gas is taken in by plants during photosynthesis?

Oxygen

Nitrogen

Carbon Dioxide

Methane

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which part of the plant primarily absorbs sunlight?

Roots

Stems

Leaves

Flowers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the two main stages of photosynthesis?

Light-dependent reactions and Calvin cycle

Glycolysis and Krebs cycle

Light-independent reactions and Electron transport chain

Krebs cycle and Calvin cycle

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

During photosynthesis, water is split into oxygen, electrons, and hydrogen ions. What is
this process called?

Photolysis

Hydrolysis

Glycolysis

Oxidation

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Photosynthesis Quiz

What is the primary function of photosynthesis?

Where in the plant cell does photosynthesis occur?

What pigment is responsible for capturing light energy in photosynthesis?

Which gas is taken in by plants during photosynthesis?

Which part of the plant primarily absorbs sunlight?

What are the two main stages of photosynthesis?

During photosynthesis, water is split into oxygen, electrons, and hydrogen ions. What is
this process called?

What are the products of the light-dependent reactions?

What molecule is the main source of energy for cellular processes in plants?

The Calvin cycle is also known as the:

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Photosynthesis Quiz

What is the primary function of photosynthesis?

Where in the plant cell does photosynthesis occur?

What pigment is responsible for capturing light energy in photosynthesis?

Which gas is taken in by plants during photosynthesis?

Which part of the plant primarily absorbs sunlight?

What are the two main stages of photosynthesis?

During photosynthesis, water is split into oxygen, electrons, and hydrogen ions. What isthis process called?

What are the products of the light-dependent reactions?

What molecule is the main source of energy for cellular processes in plants?

The Calvin cycle is also known as the:

Access all questions and much more by creating a free account

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During photosynthesis, water is split into oxygen, electrons, and hydrogen ions. What is
this process called?