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Test: Xylem and Phloem - Year 11 MCQ


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10 Questions MCQ Test - Test: Xylem and Phloem

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Test: Xylem and Phloem - Question 1

What is the primary function of xylem vessels in plants?

Detailed Solution for Test: Xylem and Phloem - Question 1
Xylem vessels are responsible for transporting water and minerals from the roots to the stem and leaves, not food materials or supporting plant growth.
Test: Xylem and Phloem - Question 2

How do the walls of xylem cells contribute to their function?

Detailed Solution for Test: Xylem and Phloem - Question 2
The outer walls of xylem cells are reinforced with lignin, which strengthens the tubes and supports the plant structurally.
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Test: Xylem and Phloem - Question 3

What structural feature of xylem vessels aids in the uninterrupted flow of water?

Detailed Solution for Test: Xylem and Phloem - Question 3
Xylem vessels are interconnected end to end without cross walls, creating a continuous tube structure that facilitates the smooth flow of water.
Test: Xylem and Phloem - Question 4
In which plant parts are vascular bundles containing xylem and phloem vessels primarily found?
Detailed Solution for Test: Xylem and Phloem - Question 4
Vascular bundles containing both xylem and phloem vessels are present throughout the root, stem, and leaves of a plant.
Test: Xylem and Phloem - Question 5
What type of substances are transported by phloem vessels?
Detailed Solution for Test: Xylem and Phloem - Question 5
Phloem vessels are responsible for transporting food materials such as sucrose and amino acids from the photosynthesizing leaves to non-photosynthesizing areas.
Test: Xylem and Phloem - Question 6
Why are xylem vessels described as being predominantly devoid of living contents?
Detailed Solution for Test: Xylem and Phloem - Question 6
The lack of living contents in xylem vessels helps to ensure that water moves through them without obstruction.
Test: Xylem and Phloem - Question 7
What is the role of lignin in xylem vessels?
Detailed Solution for Test: Xylem and Phloem - Question 7
Lignin reinforces the outer walls of xylem cells, providing strength and support to the vessel structure.
Test: Xylem and Phloem - Question 8
Which of the following statements best describes the adaptation of xylem vessels for their function?
Detailed Solution for Test: Xylem and Phloem - Question 8
Xylem vessels are adapted with a continuous tube structure and reinforced walls to efficiently transport water throughout the plant.
Test: Xylem and Phloem - Question 9
How does the arrangement of xylem and phloem in vascular bundles benefit plants?
Detailed Solution for Test: Xylem and Phloem - Question 9
The arrangement of xylem and phloem in vascular bundles facilitates the simultaneous transport of water, minerals, and food materials throughout the plant.
Test: Xylem and Phloem - Question 10
What would be a likely consequence if xylem vessels were unable to transport water effectively?
Detailed Solution for Test: Xylem and Phloem - Question 10
If xylem vessels were unable to transport water effectively, the plant would experience reduced growth and wilting due to insufficient water supply.
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