Photosynthesis

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What is photosynthesis?

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Where does photosynthesis occur in plants?

Photosynthesis occurs in the chloroplasts of plant cells.

What are the main reactants needed for photosynthesis?

The main reactants are carbon dioxide and water.

What is the main product of photosynthesis?

The main product of photosynthesis is glucose.

What gas is released during photosynthesis?

Oxygen is released during photosynthesis.

What pigment is essential for photosynthesis?

Chlorophyll is the essential pigment for photosynthesis.

Why is photosynthesis important for the environment?

Photosynthesis is important because it releases oxygen into the atmosphere and provides energy for plants and other organisms.

What is the equation for photosynthesis?

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

How does light affect photosynthesis?

Light provides the energy needed to drive the chemical reactions of photosynthesis.

What are the two stages of photosynthesis?

The two stages are the light-dependent reactions and the Calvin cycle (light-independent reactions).

What role do chloroplasts play in photosynthesis?

Chloroplasts contain chlorophyll and organize the enzymes and structures needed for photosynthesis.

How do plants obtain carbon dioxide for photosynthesis?

Plants take in carbon dioxide through small openings called stomata on their leaves.

Can photosynthesis occur without sunlight?

Photosynthesis cannot occur without sunlight, as light is necessary to drive the process.

Which organisms, besides plants, can perform photosynthesis?

Some algae and bacteria can also perform photosynthesis.

How does photosynthesis contribute to the food chain?

Photosynthesis produces glucose, which is a source of energy and food for plants and other organisms in the food chain.





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1. What is photosynthesis?

Photosynthesis is the release of energy from stored glucose.

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Photosynthesis is the conversion of light energy to mechanical energy.

Photosynthesis is the breakdown of sugar in the absence of oxygen.

2. Where does photosynthesis occur in plants?

In the mitochondria.

In the cell membrane.

In the chloroplasts of plant cells.

In the roots.

3. What are the main reactants needed for photosynthesis?

Oxygen and glucose.

Light and nitrogen.

Carbon dioxide and water.

Chlorophyll and carbon monoxide.

4. What is the main product of photosynthesis?

Carbon dioxide.

Glucose.

Ethanol.

Lactic acid.

5. What gas is released during photosynthesis?

Oxygen is released during photosynthesis.

Nitrogen is released during photosynthesis.

Carbon dioxide is released during photosynthesis.

Hydrogen is released during photosynthesis.

6. What pigment is essential for photosynthesis?

Phycocyanin.

Chlorophyll.

Carotene.

Hemoglobin.

7. Why is photosynthesis important for the environment?

It consumes large amounts of oxygen.

It pollutes the water.

Photosynthesis is important because it releases oxygen into the atmosphere and provides energy for plants and other organisms.

It reduces atmospheric nitrogen levels.

8. What is the equation for photosynthesis?

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

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

6O2 + 6C → C6H12O6 + 6H2O.

6C2 + 6H20 → 12H + 12O.

9. How does light affect photosynthesis?

Light provides the energy needed to drive the chemical reactions of photosynthesis.

Light stops photosynthesis from occurring.

Light turns water into glucose directly.

Light is used to cool down the chloroplasts during photosynthesis.

10. What are the two stages of photosynthesis?

The light-dependent reactions and the Calvin cycle (light-independent reactions).

The glycolysis stage and the Kreb's cycle.

The aerobic phase and the anaerobic phase.

The hydrolysis stage and the condensation stage.

11. What role do chloroplasts play in photosynthesis?

Chloroplasts contain chlorophyll and organize the enzymes and structures needed for photosynthesis.

Chloroplasts create glucose from carbon dioxide directly.

Chloroplasts provide energy by breaking down glucose.

Chloroplasts store oxygen produced during photosynthesis.

12. How do plants obtain carbon dioxide for photosynthesis?

Through the roots.

Through trapping it in flowers.

Through small openings called stomata on their leaves.

Through the bark.

13. Can photosynthesis occur without sunlight?

Yes, as long as the temperature is high enough.

Yes, photosynthesis can use artificial light instead.

No, photosynthesis cannot occur without sunlight, as light is necessary to drive the process.

Yes, but only during the nighttime.

14. Which organisms, besides plants, can perform photosynthesis?

Most mammals and birds.

Some algae and bacteria.

Only fungi.

All insects.

15. How does photosynthesis contribute to the food chain?

It removes carbon dioxide needed by animals.

It neutralizes all energy in the ecosystem.

It causes a decrease in oxygen supplies.

Photosynthesis produces glucose, which is a source of energy and food for plants and other organisms in the food chain.