6093 12. Nutrition and Transport in Plants (Leaf Structure)

Label the parts of the leaf.

b

c

d

stomata

palisade mesophyll

spongy mesophyll

vascular bundle

The layer of the leaf that has long cells with many chloroplasts is called the ________ mesophyll layer.

How are palisade mesophyll cells adapted for photosynthesis?

• many chloroplasts

• many intercellular air spaces

• high surface area to volume ratio

• many mitochondria

Label the xylem and the phloem.

a

b

xylem

phloem

The spongy and palisade _________ layers contain cells that can photosynthesise.

What type of cells make up the vascular bundle?

• xylem

• phloem

• guard cells

• spongy mesophyll cells

The intercellular air spaces in the spongy mesophyll allows for ________ of carbon dioxide and oxygen.

Which cells contain chloroplasts?

• palisade mesophyll

• spongy mesophyll

• guard cells

• xylem cells

Which layer of cells contains the most stomata?

• mesophyll layer

• upper epidermis

• lower epidermis

​ (a)   ​ control how big or small ​ (b)   are.

• guard cells
• stomata
• xylem
• air spaces