Which leaf surface upper or lower usually contains more stomata Why?

Which leaf surface upper or lower usually contains more stomata Why?

Explanation: All surfaces of the leaf have some amount of stomata for regulating gas exchange for photosynthesis. However, the lower epidermis (the underside of the leaf) has more, because it is more often in the shade and so it is cooler, which means evaporation won’t take place as much.

What is the main difference between upper and lower epidermis?

The main difference between upper epidermis and lower epidermis is that upper epidermis possesses a cuticle layer whereas lower epidermis possesses a large number of stomata. surfaces, respectively. Leaves are the major structure of plants involved in the production of food by photosynthesis.

What is the function of the upper and lower epidermal cells?

The upper epidermis contains a thick cuticle in order to prevent the water loss and provides an extra layer between the outside and inside of the leaf. The lower epidermis contains more stomata than the upper epidermis, facilitating the gas exchange and also helps to prevent water loss.

Why does the lower surface of leaf loses more water?

The lower surface of leaf loose more water because more amount of stomata are present on lower epidermis of leaf. and we know that function of stomata is transpiration. so loss of water is more from lower surface of leaf.

Why are stomata mostly seen in the lower surface?

The stomata must be open during the daylight hours to let oxygen and carbon dioxide pass through. While they are open, water vapor escapes into the atmosphere (transpiration). Transpiration is the loss of water through stomata, so, more stomata are found on the lower surface to prevent excessive loss of water.

What is the function of upper and lower epidermal cells?

What are the function of the lower layer of a leaf?

The bottom of the leaf is protected by the lower epidermis. Within this are the stomata, which are pores allowing for gas exchange that are regulated by the guard cells. All parts of the leaf must work together to allow for the plant to go through both photosynthesis and cellular respiration.

What is the underside of a leaf called?

stomata
stomate, also called stoma, plural stomata or stomas, any of the microscopic openings or pores in the epidermis of leaves and young stems. Stomata are generally more numerous on the underside of leaves.