The Leaf

What is an organ?

• A part of the root

• A single cell type

• A type of plant

• A collection of tissues joined together

What is the main function of leaves?

• To absorb water

• To trap sunlight for photosynthesis

• To anchor the plant

• To store nutrients

What type of arrangement do leaf veins have?

• Parallel

• Net-like

• Circular

• Random

What is the role of the cuticle on the leaf?

• To provide structural support

• To reduce water loss

• To store nutrients

• To absorb sunlight

Which part of the leaf contains chloroplasts for photosynthesis?

• Vascular bundle

• Spongy mesophyll

• Palisade mesophyll

• Epidermis

What is the function of stomata?

• To transport nutrients

• To absorb water

• To provide support

• To facilitate gaseous exchange

What type of cells are found in the palisade mesophyll?

• Round and loosely packed

• Elongated and tightly packed

• Thick-walled and rigid

• Flat and transparent

What do xylem and phloem transport?

• Only water

• Only gases

• Only nutrients

• Water and nutrients

What is the role of guard cells?

• To provide structural support

• To absorb sunlight

• To transport water

• To open and close stomata

Which part of the leaf is responsible for maximum sunlight absorption?

• Vascular bundle

• Epidermis

• Palisade mesophyll

• Spongy mesophyll