NEET BIOLOGY

Detailed explanation-1: -The plastic bag will restrict the sunlight from entering it, which will lead to the closure of stomata and decreases transpiration. Because of decreased transpiration, the water loss from plants will be less, so the absorption of water from roots will also decrease.

Detailed explanation-2: -As the relative humidity of the air surrounding the plant rises the transpiration rate decreases. It is easier for water to evaporate into dryer air than into more saturated air. Increased movement of the air around a plant will result in a higher transpiration rate.

Detailed explanation-3: -The plastic bag works because air goes through the plastic but water won’t. As the water evaporates, it condenses in the plastic, runs down, and is reabsorbed by the plant. What you have is a miniature greenhouse! It’s easy to see how plastic bags can help houseplants suffering from air that’s too dry.

Detailed explanation-4: -At high atmospheric humidity, transpiration is low. This is because the rate of transpiration is directly proportional to the saturation deficit. It is dependent on the gradient of vapor pressure. Thus, the higher the humidity, the lower the rate of transpiration.

Detailed explanation-5: -Evaporation is the word we use when liquid turns into gas. The tiny water particles get collected on the inside of the plastic bag because the bag is sealed, and after a while we can start to see water droplets forming. This is called condensation, the word we use when gas turns into liquid.