Question

Is it possible for you to recognize the leaves without seeing them. How?

Answer 1

Hint: Leaves are present in every plant. They are attached to the stem via a stalk. They are the site of photosynthesis and food is manufactured there.

Complete answer:
The food which is prepared in the leaves are transported to various parts of the plant by the vascular system. Along with food, water and minerals are transported too. Some plants do not have leaves in them. For example: the plants present in the desert, cactus has reduced leaves and instead have sharp spines. The green leaves liberate oxygen. Small openings are present on them which are called stomata. Oxygen is passed through them.
- if we study the leaf structure, it consists of a lamina which is very broad and attached to a stem via petiole. Each leaf has different size, shape,colour and other features which helps to understand about the plant. If we were to recognize the leaves without seeing it, we must study the roots. Different kinds of roots produce different kinds of leaves.
If the roots are fibrous, then leaves would have parallel venation.
If the plant has tap roots then the venation would be reticulated.
Venation means the arrangement of veins present on the lamina of the leaf.

Note: In parallel venation, veins are aligned parallelly. Example: banana leaf. In reticulate venation, there is a vein in the centre and the other small veins arise from it. Example: rose leaf.