Question

How do stomata help conserve water?

Answer 1

Hint: The narrow holes found on the epidermis of the leaves are stomata. Under the light microscope, we will see stomata. Stomata are found on stems and other plant sections of some of the species. In gaseous exchange and photosynthesis, stomata play a significant role.

Complete answer:
From their roots, plants can absorb water and emit water from such stomata as vapour into the air. Plants need to reduce transpiration to minimise their water loss in order to live in drought conditions. Some plants have grown to have narrower leaves and therefore they have fewer stomata which makes them exist in dry conditions.
The pores inside the cuticle of the leaf located on the underside of the leaves of a plant or on the stem are the stomata. The stomata are surrounded by two guard cells, creating a "doorway" effect, and can either increase or decrease in size. It seals off the stomata as the guard cells grow, maintaining water in the plant. Stomata will close if the plant needs water so there won't be enough water to generate demand for stomatal opening in the guard cells; this reaction lets the plant save water. Stomata regulate the loss of water and the exchange of gas by opening and closing. They allow water vapour and oxygen out of the leaf and into the leaf with carbon dioxide. The guard cells lose water in low light and allow the stomata to close.

Note: Stomata plays two important roles and functions in a plant. The first is the gaseous exchange, i.e. carbon dioxide absorption and oxygen release. The second one is the transpiration mechanism of plants. Air from these openings reaches the plant.