Câu hỏi trắc nghiệm về quang hợp

What is the process of photosynthesis?

• Respiration of plants

• Production of food for plants

• Absorption of water from the soil

• Production of oxygen for plants

Which gas do plants use from the air during photosynthesis?

• Oxygen

• Carbon dioxide

• Nitrogen

• Hydrogen

Why is light necessary for the process of photosynthesis?

• Helps plants produce heat

• Stimulates the formation of glucose

• Helps plants breathe

• Supports plants in absorbing water

Where does the process of photosynthesis mainly occur in plants?

• Roots

• Stem

• Leaves

• Flowers

If a plant does not receive enough light, what may happen to the process of photosynthesis?

• The process of photosynthesis will occur more vigorously

• The plant will respire more

• The process of photosynthesis will decrease

• The plant will photosynthesize better

If you place a plant in complete darkness, what will be the result?

• The plant will grow normally

• The plant will stop photosynthesizing and may die

• The plant will photosynthesize slower but still live

• The plant will respire instead of photosynthesizing

Compare the differences between photosynthesis and respiration in plants:

• Both processes produce glucose

• Photosynthesis uses light,

Compare the differences between photosynthesis and respiration in plants:

• Both processes produce glucose

• Photosynthesis uses light, while respiration does not need light

• Respiration only occurs during the day, while photosynthesis only occurs at night

• Both processes generate energy from carbon dioxide

Why do leaves appear green and how is this related to the process of photosynthesis?

• Because they absorb the green color of sunlight

• Because the chlorophyll in leaves reflects green and absorbs light for photosynthesis

• Because leaves do not have other pigments

• Because leaves need to reflect green light to avoid burning

What do you think will happen if the process of photosynthesis is interrupted globally?

• No significant change

• Decrease in oxygen levels in the air

• Increase in food supply in nature

• Increase in water levels in the air