Plant Water Relations
Biology ⇒ Plant Biology
Plant Water Relations starts at 8 and continues till grade 12.
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See sample questions for grade 8
A plant is placed in a dark room. What will happen to the rate of transpiration?
A potted plant is placed in a room with a fan blowing air directly on it. What is likely to happen to the rate of transpiration?
Describe how water moves from the soil to the leaves of a plant.
Describe the role of root hairs in plant water relations.
Describe what happens to a plant cell placed in a very salty solution.
Explain how humidity affects the rate of transpiration in plants.
Explain the importance of water potential in plant water relations.
Explain why desert plants often have small or needle-like leaves.
Explain why wilting occurs in plants.
Name the tissue in plants that transports water from roots to leaves.
What is the main force that pulls water upward through the plant stem?
What is the main function of guard cells in plant leaves?
What is the process by which plants lose water vapor from their leaves called?
What is turgor pressure?
What would happen to a plant if its xylem tissue is damaged?
Which part of the plant is mainly responsible for absorbing water from the soil?
Which plant tissue is responsible for transporting food produced in the leaves to other parts of the plant?
Which structure on the leaf surface controls the opening and closing for gas exchange and water loss?
A plant is exposed to high temperatures and strong sunlight for several hours. Predict and explain the effect on the rate of transpiration and the plant's water balance.
A student sets up an experiment with two identical plants. Plant A is watered with pure water, while Plant B is watered with a solution containing a high concentration of salt. After a week, Plant B appears wilted and its leaves are drooping. Explain why this happened using your knowledge of plant water relations.
