Plant Transport Systems
Biology ⇒ Plant Biology
Plant Transport Systems starts at 7 and continues till grade 12.
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See sample questions for grade 10
A plant is placed in a windy environment. Predict and explain the effect on its rate of transpiration.
A student places a plant in a room with high humidity. What effect will this have on the rate of transpiration?
Describe how water moves from the soil into the root hair cells.
Describe one way in which the structure of xylem vessels is adapted for their function.
Describe the cohesion-tension theory in relation to water transport in plants.
Explain how guard cells control the opening and closing of stomata.
A plant is placed in a windy environment. Predict and explain the effect on its rate of transpiration.
A student places a plant in a room with high humidity. What effect will this have on the rate of transpiration?
Which of the following best describes the direction of transport in xylem?
(1) From leaves to roots
(2) From roots to leaves
(3) From stem to roots
(4) From flowers to roots
Which of the following best describes the movement of substances in the phloem?
(1) Only upward
(2) Only downward
(3) Both upward and downward
(4) Only from roots to leaves
Which of the following factors does NOT affect the rate of transpiration?
(1) Light intensity
(2) Wind speed
(3) Soil type
(4) Humidity
Which of the following is a correct statement about sieve tube elements?
(1) They have nuclei
(2) They are dead at maturity
(3) They are involved in phloem transport
(4) They transport water only
Fill in the blank: The loss of water vapor from the aerial parts of a plant is called __________.
Fill in the blank: The main force that pulls water up through the xylem is __________.
Fill in the blank: The movement of sugars through the phloem is called __________.
Fill in the blank: The process by which dissolved substances are transported in the phloem is called __________.
True or False: Phloem transports only sugars from the leaves to the roots.
True or False: The movement of water in the xylem is due to root pressure, capillarity, and transpiration pull.
True or False: The movement of water through the xylem is an active process.
True or False: The phloem transports water and minerals from the roots to the leaves.
