Leaves in a plant

Define lamina.

• Lamina is the green expanded part of the leaf, it is also known as leaf blade.

• Lamina is a thin and flat part of the leaf.

• Both (a) and (b)

• None of the above

What is the stalk attached to stem known as?

• lamina

• petiole

• xylem

• midrib

State the function of veins.

• To provide extra support to plant.

• For transporting water and nutrients throughout the leaf

• To store food for unfavourable conditions.

• None of these

Describe parallel venation.

• In parallel venation, veins arise from the mid rib and run perpendicular to each other..

• In parallel venation, veins arise from the mid rib and run parallel.

• In parallel venation, The main vein runs down the center of the leaf, with smaller veins branching out from it .

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• All of the above.

Give an example of a plant having reticulate venation.

• Banana

• Mango

• Neem

• Maize

State functions of leaves (Choose most appropriate answer).

• Photosynthesis only

• Transpiration only

• Water absorption

• Both photosynthesis and transpiration