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 process by which plants convert light energy into chemical energy?

  1. Photosynthesis

  2. Cellular respiration

  3. Transpiration

  4. Fermentation
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.

Multiple choice

The process by which microorganisms produce energy from inorganic compounds is known as:

  1. Chemosynthesis

  2. Photosynthesis

  3. Fermentation

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

Chemosynthesis is the process by which microorganisms produce energy from inorganic compounds.

Multiple choice

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

  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.

Multiple choice

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

  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.

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 and Storage

  3. Carbon Pricing

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

Carbon Sequestration is the process of capturing and storing carbon dioxide to prevent its release into the atmosphere.

Multiple choice

The process by which plants convert sunlight into energy is called:

  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.

Multiple choice

The process by which plants convert nitrogen gas into a usable form is called:

  1. Photosynthesis

  2. Cellular respiration

  3. Transpiration

  4. Nitrogen fixation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Nitrogen fixation is the process by which plants convert nitrogen gas into a usable form, which is essential for plant growth.

Multiple choice

The process by which plants respond to environmental stimuli is called:

  1. Photosynthesis

  2. Cellular respiration

  3. Transpiration

  4. Tropism
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Tropism is the process by which plants respond to environmental stimuli, such as light, gravity, and touch.

Multiple choice

The process by which plants store energy in the form of starch is called:

  1. Photosynthesis

  2. Cellular respiration

  3. Transpiration

  4. Starch synthesis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Starch synthesis is the process by which plants store energy in the form of starch, which is a complex carbohydrate.

Multiple choice

What is the term used to describe the process by which coral polyps secrete calcium carbonate to build their skeletons?

  1. Calcification

  2. Photosynthesis

  3. Respiration

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

Calcification is the process by which coral polyps use calcium and carbonate ions from seawater to build their hard skeletons.

Multiple choice

What is the primary pigment responsible for absorbing light energy in photosynthesis?

  1. Chlorophyll a

  2. Chlorophyll b

  3. Carotenoids

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

Chlorophyll a is the primary pigment responsible for absorbing light energy in photosynthesis. It is a green pigment found in the chloroplasts of plant cells.

Multiple choice

Where does the light-dependent reaction of photosynthesis take place?

  1. Stroma

  2. Thylakoid membranes

  3. Cytoplasm

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

The light-dependent reaction of photosynthesis takes place in the thylakoid membranes of chloroplasts. These membranes contain chlorophyll and other pigments that absorb light energy.

Multiple choice

What is the primary product of the light-dependent reaction of photosynthesis?

  1. Glucose

  2. ATP

  3. NADPH

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

The primary products of the light-dependent reaction of photosynthesis are ATP and NADPH. These molecules are used in the Calvin cycle to convert carbon dioxide into glucose.

Multiple choice

What is the overall equation for photosynthesis?

  1. 6CO2 + 6H2O + light energy → C6H12O6 + 6O2

  2. 6CO2 + 12H2O + light energy → C6H12O6 + 6O2

  3. 6CO2 + 6H2O + light energy → C6H12O6 + 12O2

  4. 6CO2 + 12H2O + light energy → C6H12O6 + 18O2
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The overall equation for photosynthesis is 6CO2 + 6H2O + light energy → C6H12O6 + 6O2. This equation shows that photosynthesis converts carbon dioxide and water into glucose and oxygen using light energy.

Multiple choice

What is the role of oxygen in photosynthesis?

  1. It is a byproduct of 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.