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 9
A plant cell placed in a hypertonic solution will __________.
A plant is placed in a dry, windy environment. Predict and explain what will happen to its rate of transpiration.
A plant is watered with a solution containing a high concentration of salts. Predict what will happen to the plant cells and explain why.
Describe how humidity affects the rate of transpiration.
Describe the cohesion-tension theory of water movement in plants.
A plant cell placed in a hypertonic solution will __________.
A plant is placed in a dry, windy environment. Predict and explain what will happen to its rate of transpiration.
A plant is watered with a solution containing a high concentration of salts. Predict what will happen to the plant cells and explain why.
Water potential is highest in which part of the plant?
(1) Soil
(2) Root hair cells
(3) Leaf air spaces
(4) Atmosphere
Which factor does NOT affect the rate of transpiration?
(1) Light intensity
(2) Wind speed
(3) Soil pH
(4) Humidity
Which of the following best describes osmosis?
(1) Movement of water from a region of low concentration to high concentration
(2) Movement of water from a region of high concentration to low concentration through a semi-permeable membrane
(3) Movement of solutes from high to low concentration
(4) Movement of gases through stomata
Which of the following best explains why desert plants have small or needle-like leaves?
(1) To increase photosynthesis
(2) To reduce water loss
(3) To attract pollinators
(4) To store more water
Fill in the blank: The main force that pulls water up through the plant is __________ created by transpiration.
Fill in the blank: The movement of water from the roots to the leaves is called the __________ stream.
Fill in the blank: The process by which water is forced out of the tips of leaves due to root pressure is called __________.
Fill in the blank: The process by which water moves from the soil into the root hair cell is called __________.
True or False: The apoplast pathway is blocked at the endodermis by the Casparian strip.
True or False: The process of guttation occurs through stomata.
True or False: The symplast pathway involves movement of water through the cytoplasm of plant cells.
True or False: The xylem transports both water and food in plants.
