NURSING EXAM QUESTIONS
NUTRITION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Openings in the leaf that allows gas in and out of the plant
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Transports water and supports the plant
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transports sugars
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Where photosynthesis happens
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Detailed explanation-1: -Stomata regulate gas exchange between the plant and environment and control of water loss by changing the size of the stomatal pore. This stomatal movement is affected by several environmental stimuli, such as relative humidity, CO2 concentration, and light intensity.
Detailed explanation-2: -Stomata are tiny holes found in the underside of leaves. They control water loss and gas exchange by opening and closing. They allow water vapour and oxygen out of the leaf and carbon dioxide into the leaf.
Detailed explanation-3: -This evolutionary innovation is so central to plant identity that nearly all land plants use the same pores-called stomata-to take in carbon dioxide and release oxygen. Stomata are tiny, microscopic and critical for photosynthesis. Thousands of them dot on the surface of the plants.
Detailed explanation-4: -The main functions of stomata are: Gaseous exchange-Stomatal opening and closure help in the gaseous exchange between the plant and surrounding. It helps in transpiration and removal of excess water in the form of water vapour. Stomatal closure at night prevents water from escaping through pores.