Question

The veins present in the leaves help to carry...
A. Waste product
B. Alkaloid
C. Sap
D. Oxygen

Answer 1

Hint: Veins provide the vascular supply of the leaves.
They have both xylem and phloem bundles for the transport of water and the food material which is prepared by the process of photosynthesis.

Complete answer: In the leaves there is one main vein on the central rib of the plant leaf.
It is then further divided and subdivided into different veins to form fine venations.
1. These veins consist of both xylem and phloem vascular bundles for different functions, xylem for transportation of water and mineral, and phloem for transportation of food that is prepared in the process of photosynthesis.
2. They are mainly forms of the parenchyma cells but sometimes it is also made up of sclerenchyma cells.
3. All the leaves have the same structure that is midrib veins and petiole and have the same basic function of performing the process of photosynthesis for the formation of food as leaves are the only place in plants that have chlorophyll.
4. The veins in plants are well compared with the arteries and veins in the human body, both of them save the same function of transportation.
5. Due to the presence of both the tissue veins are helpful in the transportation of water and minerals and also in the transportation of food from leaves to other parts of the plants.
6. Xylem and phloem are the only tissue present in the plants for different purposes of transportation; both of them are made up of 4 different types of cells.
7. Hence from the above, we conclude that veins are responsible for the transportation of SAP.

So the correct option is C .

Note: Leaves are the main part of the vascular system in plants and they can transport material only with the help of veins.