Structure of a leaf

What are the external structures of the leaf?

• Petiole and Lamina

• Lamina

• Petiole

• Cuticle

Petiole and Lamina are internal structure of leaf

• True

• False

Petiole is the leaf stalk that connects the ........... to the stem of the plant

• Upper epidermis

• Cuticle

• Lamina

• Spongy mesophyll

What are the internal structures of the leaf?

• Lower epidermis, Upper epidermis, Palisade mesophyll, Cuticle and Vascular bundle

• Palisade mesophyll, Cuticle, Upper epidermis, Lower epidermis and Spongy mesophyll

• Cuticle, Upper epidermis, Lower epidermis, Palisade mesophyll, Spongy mesophyll and Vascular bundle

• Lower epidermis, Lamina, Palisade mesophyll, Cuticle, Spongy mesophyll and Vascular bundle

Vascular bundle consists ..........

• Spongy mesophyll

• Xylem and Phloem

• Xylem

• Phloem

What is a layer that consists the stomata?

• Lower epidermis

• Cuticle

• Lamina

• Upper epidermis

Palisade mesophyll is a site for the photosynthesis?

• True

• False

Cuticle helps to ......

• absorb water and salt from the soil

• absorb the sunlight for the photosynthesis

• reduce the excessive loss of water

• support the leaf