Table of Contents
- 1 Which part of the plant helps in exchange of gases?
- 2 What is the opening where gas exchange occurs?
- 3 Which part of the plant helps in photosynthesis?
- 4 What is the process of gas exchange in plants?
- 5 What are the plant structures responsible for gas exchange and its functions?
- 6 How do gases enter and exit the plant?
Which part of the plant helps in exchange of gases?
stomata
In plants, the exchange of gases takes place through stomata. Each of the stomata is surrounded by two guard cells, and these cells contain chloroplasts.
What is the opening where gas exchange occurs?
alveoli
During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
What is the opening in the leaf that allows gases to move in and out?
Carbon dioxide and oxygen cannot pass through the cuticle, but move in and out of leaves through openings called stomata (stoma = “hole”). Guard cells control the opening and closing of stomata. When stomata are open to allow gases to cross the leaf surface, the plant loses water vapor to the atmosphere.
Which part of the plant helps in photosynthesis?
chloroplasts
In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.
What is the process of gas exchange in plants?
Gas exchange is the process whereby water vapor and oxygen leave and carbon dioxide enters plant leaves. On balance, therefore, plants use carbon dioxide and produce oxygen. Stomata and Guard Cells. The gases move into and out of the plants through specialized openings located along the lower surface of the leaf.
What occurs during gas exchange in a plant?
What are the plant structures responsible for gas exchange and its functions?
Stomata
Stomata, as mentioned above, are the structures through which gas exchange occurs in leaves. Each stoma is surrounded by two guard cells, which can open and close depending on environmental conditions.
How do gases enter and exit the plant?
The gases move into and out of the plants through specialized openings located along the lower surface of the leaf. These openings, called stomata, are of optimum size, shape, and distribution for the efficient diffusion of gases. Each stoma (or stomate) is surrounded by two specialized structures called guard cells.