NEET BIOLOGY

Detailed explanation-1: -Once they have water and carbon dioxide, they can use energy from sunlight to make their food. The leftovers from making the plant food is another gas called oxygen. This oxygen is released from the leaves into the air.

Detailed explanation-2: -Exactly, photosynthesis allows the plants, the leaf to take in these ingredients and makes it into food. And so just as we exhale, the stomata also exhale out oxygen. At the same time, they release water.

Detailed explanation-3: -Plants do require oxygen for respiration which in return gives out carbon dioxide. Unlike animals, plants do not have any specialized structures for gaseous exchange but they have stomata (present in leaves) and lenticels (present in stems) which are involved in the exchange of gases.

Detailed explanation-4: -Plants breathe in oxygen and give out carbon dioxide. But during the day, the amount of carbon dioxide released is much less than the amount required for photosynthesis. So, plants take in carbon dioxide from the atmosphere for preparing food.

Detailed explanation-5: -During daylight hours, plants take in carbon dioxide and release oxygen through photosynthesis, and at night only about half that carbon is then released through respiration.