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Transport in Plants Practice Questions - DPP for NEET

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1. What is the role of transport in plants?
Ans. Transport in plants refers to the movement of water, nutrients, and other essential substances throughout the plant's body. It is crucial for various physiological processes such as photosynthesis, respiration, and growth.
2. How does water move in plants?
Ans. Water in plants moves through a specialized tissue called xylem. It is transported from the roots to the leaves in a process called transpiration. Transpiration creates a suction force that pulls water up through the xylem vessels due to the cohesive and adhesive properties of water molecules.
3. What are the main factors affecting transpiration in plants?
Ans. Several factors can affect the rate of transpiration in plants. These include temperature, humidity, wind speed, light intensity, and the availability of water. Higher temperatures, lower humidity, increased wind speed, and brighter light can all increase the rate of transpiration.
4. How are nutrients transported in plants?
Ans. Nutrients in plants are transported through a tissue called phloem. The process is known as translocation. Sugars and other organic compounds produced during photosynthesis are transported from the leaves to other parts of the plant, such as roots, flowers, or fruits, for storage or growth.
5. What is the significance of transport in plants for human life?
Ans. Transport in plants is essential for human life as it allows plants to absorb water and nutrients from the soil, which are then transferred to the food we consume. Plants also release oxygen as a byproduct of photosynthesis, which is vital for our respiration. Additionally, plants provide us with various medicinal compounds and materials for construction, clothing, and fuel.
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