Final answer:
Stomas are the part of a plant that works as its 'nostrils'. They are small openings primarily located on the underside of leaves and stems and are surrounded by specialized guard cells that control their opening and closing. Chloroplasts are responsible for photosynthesis, but they are not directly involved in the function of stomas.
Step-by-step explanation:
Stomas are the part of a plant that works as its "nostrils". They are small openings primarily located on the underside of leaves and stems.
Stomas are surrounded by two specialized guard cells that control their opening and closing. When the guard cells are turgid, the stomas open and allow the exchange of gases, including the intake of carbon dioxide and release of oxygen.
Chloroplasts, on the other hand, are the organelles found in the plant cells that are responsible for photosynthesis. They contain the pigment chlorophyll and convert sunlight into chemical energy, which is used to produce glucose and oxygen. While chloroplasts are crucial for the process of photosynthesis, they are not directly involved in the function of stomas.
Learn more about Plant stomas