Transport in Plants

Essential ICSE Biology

R. N. Mukherjee, Bharati Bhawan

1.
Fill in the blanks.
1. _____________ is the movement of particles of a substance from an area of higher concentration to an area of lower concentration.
2. Osmosis takes place through a _____________ membrane.
3. A cell will shrink if placed in a _____________ solution.
4. Active transport moves minerals from _____________ concentration in the soil to _____________ concentration within the root hair.
5. _____________ in the cell membrane help in the active transport of minerals.
6. _____________ and _____________ of xylem help transport water and minerals from the roots to the leaves.
7. Sieve tubes are elements of the _____________ tissue.
8. _____________ provide mechanical strength to the phloem.
9. _____________ is the process by which plants release water in the form of water vapour.
10. Transpiration may continue at a low rate at night through the _____________ or the _____________.
11. _____________ is a macronutrient.
12. A lack of chlorophyll in leaves may be caused due to a deficiency of _____________ or _____________.
S A M P L E
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Answer:
S A M P L E
Diffusion
semi-permeable
hypertonic
lower, higher
Carrier protei
Trachieds, vesse...
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2.
Choose the correct option.
1. Diffusion helps in
1. passive absorption of minerals from the soil
2. exchange of gases with the atmosphere
3. release of water vapour through the stomata
4. all of these
2. Root hairs are outgrowths of the
1. lenticels
2. epiblema
3. stomata
4. cuticle
3. An isotonic solution when compared to a cell placed in it
1. has the same concentration of water molecules
2. has a lower concentration of water molecules
3. has a higher concentration of water molecules
4. has no water molecules
4. Which process requires expenditure of energy?
1. Osmosis
2. Active transport
3. Diffusion
4. All of these
5. Vascular bundles are made up of
1. xylem
2. phloem
3. both xylem and phloem
4. none of these
6. Which of the following statements is not true?
1. Tracheids are elongated, tubular cells with tapering ends.
2. Vessels are found in all types of plants
3. Xylem parenchyma conducts water laterally and stores food.
4. Xylem fibres provide mechanical strength to the tissue.
7. Companion cells are
1. absent in monocot plants
2. present only in naked-seeded plants
3. absent in dicot plants
4. present only in closed-seeded plants
8. Transpiration is affected by
1. humidity
2. atmospheric pressure
3. temperature
4. all of these
9. Ascent of sap in tall trees occurs due to
1. root pressure
2. transpiration pull
3. both (a) and (b)
4. none of these
10. Which of the following is a micronutrient
1. Potassium
2. Phosphorus
3. Sulphur
4. Iron
S A M P L E
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Answer:
S A M P L E
(d) all of these
(b) epiblema
(a) has the same concentration o
(b)...
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Match the following.

Column A	Column B
1. Zinc	a. Active transport
2. Hypotonic solution	b. Macronutrient
3. Companion cells	c. Helps cool the plant body
4. Sieve plate	d. Micronutrient
5. Transpiration	e. Cell will gain water by osmosis
6. Carrier proteins	f. Connected to sieve tubes by pores
7. Nitrogen	g. Separated by retting
8. Bast fibres of jute	h. Porous transverse wall of sieve tube

S A M P L E

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Answer:

S A M P L E

(d) Micronutrient
(e) Cell will gain water by osmosis.
(f) Con
(h) Porou...
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4.
What is diffusion? Give three examples of the process of diffusion in plants.
5.
What is osmosis? How does it differ from diffusion?
6.
What is active transport?

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08 Apr 2025niranjan k.

Essential ICSE Biology

R. N. Mukherjee, Bharati Bhawan

Chapters

Transport in Plants

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