Photosynthesis & Leaf Structure Quiz

What is the primary function of chlorophyll in photosynthesis?

• To absorb water

• To release oxygen

• To reflect sunlight

• To trap light energy

Which of the following is NOT a raw material required for photosynthesis?

• Light energy

• Carbon dioxide

• Water

• Oxygen

What happens to the rate of photosynthesis when light intensity increases?

• It stops completely

• It increases until another factor limits it

• It remains constant

• It decreases

In the experiment testing for the need for carbon dioxide, what was the control setup?

• A plant with no leaves

• A plant in a bell jar with sodium hydroxide

• A plant in a bell jar with water

• A plant in complete darkness

What is the balanced chemical equation for photosynthesis?

• 6CO2 + 6H2O → C6H12O6 + 6O2

• 6O2 + 6H2O → C6H12O6 + 6CO2

• C6H12O6 + 6O2 → 6CO2 + 6H2O

• C6H12O6 + 6CO2 → 6O2 + 6H2O

How do plants obtain the minerals necessary for growth?

• Through photosynthesis

• By absorbing them from the soil

• By consuming other plants

• From the air

What is the role of starch in plants after photosynthesis?

• To provide immediate energy

• To store energy

• To build cell walls

• To transport nutrients

Which part of the leaf is primarily responsible for gas exchange?

• Cuticle

• Guard cells

• Palisade mesophyll

• Spongy mesophyll

What is a limiting factor in the context of photosynthesis?

• A factor that has no effect on photosynthesis

• A factor that is in short supply and restricts photosynthesis

• A factor that decreases photosynthesis

• A factor that increases photosynthesis

In the experiment to test the need for light, what was the purpose of destarching the plant?

• To prevent any interference from existing starch

• To allow it to photosynthesize freely

• To remove all starch present

• To ensure it had enough water