Priyanka

1] What do you mean by ''photosynthesis'' ?

• Photosynthesis is the method by which animals digest food.
• Photosynthesis occurs only in the dark.
• Photosynthesis is the process by which plants convert light energy into chemical energy.
• Photosynthesis is the process of respiration in animals.

2] What role do chlorophyll pigments play in photosynthesis?

• Chlorophyll is responsible for the respiration process in plants.

• Chlorophyll absorbs sunlight, which is essential for photosynthesis.

• Chlorophyll is a waste product of photosynthesis.

• Chlorophyll helps in the digestion of nutrients in plants.

3] Which of the following is a byproduct of photosynthesis?

• Carbon dioxide

• Oxygen

• Glucose

• Nitrogen

4] In which part of the plant does photosynthesis primarily occur?

• Roots

• Stems

• Flowers

• Leaves

5] What is the primary source of energy for photosynthesis?

• Soil nutrients

• Sunlight

• Water

• Carbon dioxide

6] Which gas is consumed by plants during photosynthesis?

• Nitrogen

• Carbon dioxide

• Hydrogen

• Oxygen

7] What is the main purpose of photosynthesis in plants?

• To produce energy for growth and development.

• To release carbon dioxide into the atmosphere.

• To facilitate reproduction in plants.

• To absorb nutrients from the soil.

8] What is the chemical equation for photosynthesis?

• CO2 + H2O -> O2 + C6H12O6

• 6O2 + C6H12O6 -> 6CO2 + 6H2O

• C6H12O6 + O2 -> CO2 + H2O

• 6CO2 + 6H2O -> C6H12O6 + 6O2

9] How does light intensity affect the rate of photosynthesis?

• Photosynthesis only occurs in low light conditions.

• There is an optimal light intensity for maximum photosynthesis rate.

• Light intensity has no effect on photosynthesis.

• Higher light intensity always increases the rate of photosynthesis.

10] What is the significance of photosynthesis in the ecosystem?

• All of the above.

• It provides food for herbivores and, indirectly, for carnivores.

• It decreases the amount of carbon dioxide in the atmosphere.

• It produces oxygen necessary for animal life.