JAMB Exam > JAMB Videos > Biology for JAMB > Xylem Transport
Xylem Transport Video Lecture | Biology for JAMB
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FAQs on Xylem Transport Video Lecture - Biology for JAMB
| 1. What is xylem transport? |  |
Ans. Xylem transport is the process by which water and nutrients are transported within plants. Xylem vessels, found in the stem and roots of plants, are responsible for this upward movement of water and minerals from the roots to the leaves.
| 2. How does xylem transport work? | |
Ans. Xylem transport works through a combination of physical forces, including transpiration and capillary action. Transpiration is the process of water loss through the stomata in leaves, which creates a suction force that pulls water up through the xylem vessels. Capillary action, on the other hand, allows water to move upwards against gravity due to the cohesive and adhesive properties of water molecules.
| 3. What is the role of xylem in plant growth? | |
Ans. Xylem plays a crucial role in plant growth by providing structural support and transporting water and nutrients. The upward movement of water through the xylem vessels helps maintain turgidity in plant cells, enabling them to stay upright. Additionally, xylem transports essential minerals and hormones that are necessary for various physiological processes, such as photosynthesis and root development.
| 4. What are the types of cells found in xylem tissue? | |
Ans. Xylem tissue is composed of four main types of cells: tracheids, vessel elements, fibers, and parenchyma cells. Tracheids and vessel elements are responsible for the actual transport of water, while fibers provide strength and support to the xylem tissue. Parenchyma cells, on the other hand, store nutrients and aid in lateral transport within the xylem.
| 5. How does xylem transport contribute to the overall functioning of a plant? | |
Ans. Xylem transport is essential for the overall functioning of a plant as it ensures the supply of water, minerals, and hormones to various parts of the plant. Water transported through the xylem is not only used for photosynthesis in the leaves but also helps maintain cell turgidity, enabling the plant to stay upright. Additionally, xylem transport facilitates the distribution of nutrients and hormones needed for growth and development, ensuring proper functioning of the plant's tissues and organs.
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Dec 23, 2024 Last updated |
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