Understanding Photosynthesis

What is the primary function of photosynthesis?

• To release oxygen as a waste product.

• To absorb carbon dioxide from the atmosphere.

• The primary function of photosynthesis is to convert light energy into chemical energy in the form of glucose.

• To provide energy for cellular respiration.

Which organisms are known to perform photosynthesis?

• Plants, algae, and some bacteria.

• Insects, reptiles, and amphibians.

• Fungi, viruses, and mammals.

• Mushrooms, yeast, and worms.

What are the main reactants in the photosynthesis equation?

• Carbon dioxide and water

• Hydrogen and methane

• Nitrogen and sulfur

• Oxygen and glucose

What is the role of chlorophyll in photosynthesis?

• Chlorophyll is a type of carbohydrate used in photosynthesis.

• Chlorophyll helps in the absorption of water for photosynthesis.

• Chlorophyll releases oxygen during photosynthesis.

• Chlorophyll absorbs light energy for photosynthesis.

In which part of the plant does photosynthesis primarily occur?

• Stems

• Flowers

• Roots

• Leaves

What are the two main stages of photosynthesis?

• Chlorophyll activation and glucose production

• Light-dependent reactions and light-independent reactions (Calvin cycle)

• Photosynthesis and respiration

• Light absorption and energy storage

What is produced as a byproduct of photosynthesis?

• Carbon dioxide

• Water

• Oxygen

• Glucose

How does light intensity affect the rate of photosynthesis?

• Higher light intensity decreases the rate of photosynthesis.

• Light intensity has no effect on photosynthesis.

• Photosynthesis occurs only in complete darkness.

• Increased light intensity generally increases the rate of photosynthesis up to a saturation point.

What is the significance of the Calvin cycle?

• The Calvin cycle produces oxygen as a byproduct of respiration.

• The Calvin cycle is involved in the breakdown of glucose for energy.

• The Calvin cycle occurs in the mitochondria of plant cells.

• The Calvin cycle is crucial for converting carbon dioxide into glucose during photosynthesis.

What role do stomata play in photosynthesis?

• Stomata facilitate gas exchange, allowing carbon dioxide in and oxygen out during photosynthesis.

• Stomata produce chlorophyll for photosynthesis.

• Stomata store water for plant growth.

• Stomata absorb sunlight for photosynthesis.