NATIONAL PUBLIC SCHOOL
CHIKKABANAVARA
WORKSHEET-01 (2024-25)
Class: VIII Subject: Biology
Section: A, B, C & D Chapter: 1. Transport of Food and
Minerals in Plants
I. Choose the correct answer.
1. What part of the xylem stores reserve food materials?
a) tracheids b) vessels c) xylem parenchyma d) xylem fibres
2. What is the order of movement of water and minerals through root hair?
a) xylem cortex root hair
b) cortex root hair xylem
c) root hair xylem cortex
d) root hair cortex xylem
3. The diagram shows the structure of a plant cell. What is the function of this specialized cell?
a) It absorbs carbon di oxide from the air
b) It absorbs ions from the soil
c) It transports sucrose from the leaves
d) It transports water in stem
4. Transport of food materials in higher plants occurs through
a) flowers b) companion cells
c) tracheids d) sieve elements
II. Assertion -reason questions:
For questions given below, two statements are given- one labelled Assertion and the other labelled
Reason. Mark the correct choice as:
(a) Both assertion and reason are true and reason is the correct explanation of assertion.
(b) Both assertion and reason are true but reason is not the correct explanation of assertion.
(c) Assertion is true but reason is false.
(d) Assertion is false but reason is true.
1. Assertion: Xylem transports water and dissolved mineral salts from the roots to the rest of the plant.
Reason: Phloem translocate organic solute from the leaves to various parts of the plant.
2. Assertion (A): Plants do not require active pumping system like heart for transportation.
Reason (R): Forces like osmosis, root pressure and transpiration pull help in transportation of substances
in plants.
3. Assertion: Light is very important factor in transpiration.
Reason: It induces stomatal opening and closing.
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4. Assertion: Diffusion is the free movement of molecules of a substance.
Reason: Diffusion occurs in all three states of matter.
III. Name the following:
1. The form in which food is transported from leaves to other parts of the plants
2. The form in which sugar is made by plants during photosynthesis.
3. A type of living cell in phloem having cytoplasm but no nucleus
4. The process by which the transport of materials take place in Chlamydomonas.
5. The process due to excess of which wilting or drooping of leaves occur.
6. Movement of ions from the region of lower concentration to higher concentration by using energy.
III. Answer the following questions:
1. An experiment was set up as shown in the figure below. After some time, the Water level in test
tube A fell down but not in test tube. Why was there a fall in the water level of test tube A and not
in that of test-tube B?
2. Define Translocation. How would you show translocation experimentally using a potted plant?
3. Identify the image given below and answer the following questions:
a) Name the process demonstrated in the above image.
b) Mention the importance of the given process in plants.
4. Draw a neat labelled diagram of phloem.
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