what is stomata? What are parallel venation and reticulate venation?
Answers
Answer:
Parallel and reticulate venation.
In a plant, the veins of the leaf blade or lamina exhibiting the parallel pattern from the base to the tip is known as the parallel venation, on the contrary, when the veins of the leaf blade or lamina in the plants exhibit the web like or net-like pattern on both side of the midrib is known as the reticulate venation.
Stomata
Stomata are small pores present in the leaf. They are surrounded by gaurd cells which help in closening and opening of stomata.
Their functions performed by them are as follows-:
1)They allow exchange of gases from the surrounding medium.
Usually, carbon dioxide is taken up and oxygen is released.
2)From stomata,transpiration takes place that is loss of excess water from the aerial parts of the plant.
Answer:
Stomata are small pores on the lower side of the leaf that helps in gaseous exchange. Parellel venation is a ventaion where veins grow parallel to each other. In reticulate there is a midrib from where veinlets arise