Plant Structure and Function Quiz

What is the primary function of a leaf in a plant's organ system?

• To protect the plant

• To facilitate photosynthesis

• To transport water

• To store nutrients

Which layer of the leaf contains cells packed with chloroplasts for photosynthesis?

• Upper epidermis

• Spongy mesophyll

• Palisade mesophyll

• Lower epidermis

How do guard cells help in regulating water loss in plants?

• By closing stomata during the day

• By opening stomata at night

• By absorbing excess water

• By adjusting the size of stomatal openings

What is the role of the waxy cuticle on the leaf surface?

• To attract pollinators

• To prevent water loss

• To absorb sunlight

• To enhance photosynthesis

Where are meristem tissues primarily located in plants?

• On the leaf surface

• In the leaf veins

• At the growing tips of roots and shoots

• In the palisade mesophyll