Biology

Photosynthesis in Plants

1,492 Questions

Photosynthesis is the biological process by which plants convert light energy into chemical energy. This page contains practice questions covering essential topics like chlorophyll, light reactions, and the pathways specific to plants. This material is crucial for medical entrance exams and academic assessments.

Chlorophyll and pigmentsLight reactionsCalvin cycleCAM plantsElectron transportPhotosynthesis factors

Photosynthesis in Plants Questions

Multiple choice

What is the role of water in photosynthesis?

  1. It is a reactant in the light-dependent reaction.

  2. It is used to produce ATP and NADPH.

  3. It is used to convert carbon dioxide into glucose.

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Water is a reactant in the light-dependent reaction of photosynthesis. It is also used to produce ATP and NADPH, and it is used to convert carbon dioxide into glucose.

Multiple choice

What is the role of carbon dioxide in photosynthesis?

  1. It is a reactant in the light-dependent reaction.

  2. It is used to produce ATP and NADPH.

  3. It is used to convert carbon dioxide into glucose.

  4. It is released into the atmosphere.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Carbon dioxide is a reactant in the Calvin cycle of photosynthesis. It is used to convert carbon dioxide into glucose.

Multiple choice

What is the role of light energy in photosynthesis?

  1. It is used to produce ATP and NADPH.

  2. It is used to convert carbon dioxide into glucose.

  3. It is released into the atmosphere.

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Light energy is used to produce ATP and NADPH in the light-dependent reaction of photosynthesis. ATP and NADPH are then used in the Calvin cycle to convert carbon dioxide into glucose.

Multiple choice

What is the primary site of photosynthesis in plants?

  1. Leaves

  2. Stems

  3. Roots

  4. Flowers
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The primary site of photosynthesis in plants is the leaves. Leaves contain chloroplasts, which are organelles that contain chlorophyll and other pigments that absorb light energy.

Multiple choice

What is the role of chlorophyll in photosynthesis?

  1. It absorbs light energy.

  2. It produces ATP and NADPH.

  3. It converts carbon dioxide into glucose.

  4. It releases oxygen into the atmosphere.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chlorophyll is a green pigment found in chloroplasts. It absorbs light energy from the sun and uses it to produce ATP and NADPH.

Multiple choice

What is the role of ATP and NADPH in photosynthesis?

  1. They are used to produce glucose.

  2. They are used to produce oxygen.

  3. They are used to produce water.

  4. They are used to produce carbon dioxide.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

ATP and NADPH are used to produce glucose in the Calvin cycle of photosynthesis. Glucose is a sugar molecule that is used by plants for energy and growth.

Multiple choice

What is the role of oxygen in photosynthesis?

  1. It is a reactant in the light-dependent reaction.

  2. It is used to produce ATP and NADPH.

  3. It is used to convert carbon dioxide into glucose.

  4. It is released into the atmosphere.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Oxygen is a byproduct of the light-dependent reaction of photosynthesis. It is released into the atmosphere as a waste product.

Multiple choice

What is the role of water in photosynthesis?

  1. It is a reactant in the light-dependent reaction.

  2. It is used to produce ATP and NADPH.

  3. It is used to convert carbon dioxide into glucose.

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Water is a reactant in the light-dependent reaction of photosynthesis. It is also used to produce ATP and NADPH, and it is used to convert carbon dioxide into glucose.

Multiple choice

What is the term for the process by which plants absorb carbon dioxide from the atmosphere?

  1. Photosynthesis

  2. Respiration

  3. Transpiration

  4. Decomposition
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Photosynthesis is the process by which plants absorb carbon dioxide from the atmosphere and use it to produce food.

Multiple choice

What is the name of the gas that is produced by plants during photosynthesis?

  1. Oxygen

  2. Nitrogen

  3. Carbon Dioxide

  4. Argon
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Oxygen is the name of the gas that is produced by plants during photosynthesis.

Multiple choice

What is the process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen?

  1. Photosynthesis

  2. Cellular respiration

  3. Fermentation

  4. Decomposition
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Photosynthesis is the process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

Multiple choice

What is the name of the process by which plants convert sunlight into energy?

  1. Cellular respiration

  2. Photosynthesis

  3. Glycolysis

  4. Krebs cycle
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Photosynthesis is the process by which plants convert sunlight into energy.

Multiple choice

What is the term for the process by which trees release oxygen into the atmosphere?

  1. Photosynthesis

  2. Respiration

  3. Transpiration

  4. Decomposition
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Photosynthesis is the process by which trees release oxygen into the atmosphere as a byproduct of creating food.

Multiple choice

What is the process by which plants convert sunlight into chemical energy?

  1. Photosynthesis

  2. Cellular Respiration

  3. Transpiration

  4. Nitrogen Fixation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to produce glucose and oxygen. This process is essential for the survival of plants and provides the basis for the food chain.

Multiple choice

What is the term used to describe the process by which plants absorb carbon dioxide from the atmosphere during photosynthesis?

  1. Carbon sequestration

  2. Carbon capture

  3. Carbon storage

  4. Carbon cycling
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbon sequestration refers to the process by which plants absorb carbon dioxide from the atmosphere during photosynthesis and store it in their tissues.