All trees have small pores called lenticels scattered over their bark, although they are more noticeable on some trees than on others. Lenticels serve as “breathing holes”, allowing oxygen to enter the living cells of the bark tissue. Most of the time, however, lenticels simply allow the bark of a tree to “breathe”.

Lenticels permit the exchange of gases between the environment and the internal tissue spaces of the organs (stems and some fruits) (Fig. 6.2). They permit the entrance of oxygen and simultaneously the output of carbon dioxide and water vapor. In apple fruit, lenticels account for up to 21% of the transpiration.

The Garden Word: Lenticel ​ Openings called stomata on the undersides of leaves allow and control the movement of oxygen, carbon dioxide and water into and out of leaves for photosynthesis and respiration. That means that oxygen and water need to get into the stems and carbon dioxide and water need to get out.

Lenticels are large sized aerating pores present in the cork tissue for gaseous exchange. They occur in almost all types of phellem containing organs including stem, root, potato tuber etc. They are slightly raised spots on the surface of stem. They help in exchange of gases.

Stomata are small pores on the surface of leaves which help in respiration. Lenticels are the openings made due to the bark on the stem which help in exchange of gases through stem.

Complete answer:

The main difference between stomata and lenticels is that stomata mainly occur in the lower epidermis of leaves, whereas lenticels occur in the periderm of the woody trunk or stems. Stomata and lenticels are two types of small pores, which occur in plants. Generally, they are responsible for the gas exchange.

A lenticel is a porous tissue consisting of cells with large intercellular spaces in the periderm of the secondarily thickened organs and the bark of woody stems and roots of dicotyledonous flowering plants.

Stomata are found mainly in the epidermis of the plant leaves and some stems. Lenticels are found in the bark of the plants. Stomata are actively exchanged gasses during the daytime when the photosynthesis occurs. Lenticels work mainly at night when the stomata shut and stop the gas exchange.

The only way for gases to diffuse in and out of the leaf is though small openings on the underside of the leaf, the stomata. These stomata can open and close according to the plant’s needs. The tissues of the leaf in between the epidermal cells, into which gases diffuse from the stomata, are called mesophyll.

Rhythmic contractions of abdominal muscles compress air sacs increasing ventilation which helps to maintain a concentration gradient during vigorous activity such as flying. This increases the rate of gas exchange when the insect is more active and has an increased metabolic demand (needs more oxygen).

Stomata are composed of a pair of specialized epidermal cells referred to as guard cells (Figure 3). Stomata regulate gas exchange between the plant and environment and control of water loss by changing the size of the stomatal pore.

Stomata is one of the essential attributes that is used for gaseous exchange. It functions as the mouth of a plant and is also called a stoma, or stomas. Stomata is the minute openings, generally found in the epidermis of leaves….Diagram Of Stomata.

The study of plant anatomy helps us to understand the structural adaptations of plants with respect to diverse environmental conditions. It also helps us to distinguish between monocots, dicots, and gymnosperms. Such, a study is linked to plant physiology. Hence, it helps in the improvement of food crops.