Level 9 topic 8: Photosynthesis Quiz

What is photosynthesis primarily classified as?

• Heterotrophic nutrition

• Autotrophic nutrition

• Parasitic nutrition

• Saprophytic nutrition

Which of these is NOT required for photosynthesis?

• Water

• Carbon dioxide

• Nitrogen

• Light energy

In the process of photosynthesis, plants are referred to as:

• Consumers

• Producers

• Parasites

Which part of the leaf contains the most chloroplasts?

• Upper epidermis

• Palisade mesophyll layer

• Spongy mesophyll layer

• Lower epidermis

The waxy cuticle of a leaf serves primarily to:

• Produce chlorophyll

• Prevent water loss

• Absorb light

• Store glucose

Guard cells are responsible for:

• Producing glucose

• Controlling stomata opening and closing

• Storing water

• Producing chlorophyll

When stoma is open, concentration of potassium is:

• Higher inside the guard cells

• Higher outside the guard cells

• Higher in the cell wall

When stoma is closed:

• Water moves out of the guard cells

• Water moves into the guard cells

• Guard cells become plasmolysed

Which adaptation allows for efficient gas exchange in leaves?

• Thick cell walls

• Dense cell arrangement

• Large air spaces in spongy mesophyll

• Solid internal structure

What process is more dominant during the daytime?