Chapter 11 Transport in Plants MCQs for Class 11 Biology

Chapter 11 Transport in Plants MCQs for Class 11 Biology , Chapter 11 Transport in Plants Notes for Class 11 Biology

Chapter 11 Transport in Plants MCQs for Class 11 Biology

Here students can practice Chapter 11 Transport in Plants MCQs for Class 11 Biology. All the MCQs are divided into several sub-pages. Each page has 40 MCQs, for the next page just scroll down and click on the buttons. Also you can practice Class 11 Biology MCQs (Multiple Choice Questions) for other chapters.

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Q 1.: The rate of transpiration will _________ if the atmospheric pressure is low

(A) Increase

(B) Decrease

(C) Stay unchanged

(D) Can’t be determined

Option – (a)

Q 2.: Transpiration is regulated by the movements of_____________

(A) Parenchyma cells

(B) Guard cells

(C) Epithelial cells

(D) None of the above

Option – (b)

Q 3.: The main function of guard cells is to help with ________

(A) Transpiration

(B) Guttation

(C) Transcription

(D) None of the above

Option – (a)

Q 4.: Transport of food materials in higher plants occurs through

(A) Flower

(B) Companion cells

(C) Tracheids

(D) Sieve elements

Option – (d)

Q 5.: Nearly 90% of the following plants have________

(A) Spores

(B) Mycorrhizae

(C) Naked seeds

(D) None of the above

Option – (b)

Q 6.: The movement of materials from the leaves to other tissues of the plant is called___________

(A) Tropic movement

(B) Guttation

(C) Transpiration

(D) None of the above

Option – (d)

Q 7.: The exudation of xylem sap drops on the edges of leaves is called

(A) Transpiration

(B) Guttation

(C) Condensation

(D) None of the above

Option – (b)

Q 8.: Gridling around the trunk of a tree can cause it to_________ if it cannot regrow to bridge the wound

(A) Stop absorbing water

(B) Stop growing

(C) Die

(D) None of the above

Option – (c)

Q 9.: The steroid hormones easily pass through the plasma membrane through diffusion because they are__________

(A) Gaseous

(B) Carbon-based

(C) Water Soluble

(D) Lipid Soluble

Option – (d)

Q 10.: Living cells placed in an isotonic solution tend to retain their shape and size. This is based on the principle of

(A) Diffusion 

(B) Transpiration

(C) Osmosis

(D) None of the above

Option – (c)

Q 11.: In soil, the water available for root absorption is

(A) Capillary water

(B) Combined water

(C) Gravitational water

(D) Hygroscopic water

Option – (a)

Q 12.: Plasmolysis occurs when the cell is placed in

(A) Hypertonic solution

(B) Isotonic solution

(C) Hypotonic solution

(D) None of the above

Option – (a)

Q 13.: The movement of mineral ions into plant root cells as are result of diffusion is called

(A) Passive absorption

(B) Active absorption

(C) Osmosis

(D) Endocytosis

Option – (a)

Q 14.: The rate of transpiration in plants is dependent upon

(A) Light, temperature, atmospheric humidity and wind

 (B) Wind, temperature and light

(C) Light and temperature

(D) Temperature and soil

Option – (a)

Q 15.: Stomata open and close due to

(A) Turgor pressure of guard cells

(B) Pressure of gases inside the leaves

(C) Genetic clock

(D) Ircadian rhythm

Option – (b)

Q 16.: The water potential and osmotic potential of pure water are

(A) Zero and zero

(B) 100 and zero

(C) 100 and 100

(D) None of these

Option – (a)

Q 17.: Osmosis means movement of 

(A) Solvent from low concentration of solution to higher concentration of solution

(B) Solvent from higher concentration of solution to low concentration of solution

(C) Solute from higher concentration to lower concentration

(D) None of these

Option – (a)

Q 18.: Movement of ions or molecules in a direction opposite to that of prevailing electrochemical gradient is known as

(A) Active transport

(B) Brownian movement

(C) Diffusion

(D) Pinocytosis

Option – (a)

Q 19.: In rainy season, door gets swelled due to

(A) Imbibition

(B) Transpiration

(C) Diffusion

(D) Respiration

Option – (b)

Q 20.: Which of the following is used as anti-transpirant?

(A) Phenyl mercuric acetate

(B) Cobalt chloride

(C) Naphthol acetic acid

(D) Calcium carbonate

Option – (a)

Q 21.: Addition of a solute to pure water causes

(A) Negative water potential

(B) More negative water potential

(C) Positive water potential

(D) More positive water potential

Option – (a)

Q 22.: Turgor pressure become equal to the wall pressure when

(A) No exchange of water takes place

(B) Solute goes from cell into water

(C) Water enter the cell

(D) Water leaves the cell

Option – (a)

Q 23.: Which one of the following process help the water-soluble inorganic nutrients go down into the soil horizon and get precipitated as unavailable salts?

(A) Leaching

(B) Fragmentation

(C) Catabolism

(D) None of these

Option – (a)

Q 24.: The casparian strip prevents water and minerals from entering the stele through the 

          (A) Apoplast

(B) Xylem vessel

(C) Plasmodesmata

(D) Symplast

Option – (a)

Q 25.: The movement of water up the stems of tall plants is least dependent on which of the following factors?

(A) Guttation

(B) Transpiration

(C) Cohesiveness of water molecules

(D) Tension within column of water molecules

Option – (a)

Q 26.: Tension is a result of which of the following ?

(A) Transpiration at the leaf surface

(B) The cohesive nature of water

(C) The narrowness of the xylem tube

(D) All of the above

Option – (a)

Q 27.: In terrestrial habitat which of the following is affected by temperature and rainfall condition?

(A) Translocation

(B) Transpiration

(C) Transformation

(D) Thermodenaturation

Option – (b)

Q 28.: Mainly conduction of water in an angiosperm occurs through

(A) Tracheids

(B) Xylem vessels

(C) Sieve tubes

(D) All of these

Option – (b)

Q 29.: Root system in plant is well developed 

(A) Due to deficiency of auxins

(B) Due to deficiency of cytokinins

(C) Due to deficiency of minerals

(D) For increased absorption of water

Option – (d)

Q 30.: Death of protoplasm is a pre-requisite for a vital function like

(A) Transport of sap

(B) Transport of food

(C) Absorption of water

(D) Gaseous exchange

Option – (d)

Q 31.: Water potential can be obtained by

(A) OP + TP

(B) OP = WP

(C) ψs + ψp


Option – (c)

Q 32.: Which is correct about transport or conduction of substances?

(A) Organic food moves up through phloem

(B) Organic food moves up through xylem

(C) Inorganic food moves upwardly and downwardly through xylem

(D) Organic food moves upwardly and downwardly through phloem

Option – (d)

Q 33.: In guard cells when sugar is converted into starch the stomatal pore 

(A) Opens fully 

(B) Opens partially

(C) Closes completely

(D) Remains unchanged

Option – (d)

Q 34.: Guttation is caused by

(A) Transpiration

(B) Osmosis / DPD

(C) Root pressure

(D) Osmotic pressure

Option – (b)

Q 35.: Conversation of starch to organic acid is essential for

(A) Stomatal closure

(B) Stomatal opening

(C) Stomatal initiation

(D) Stomatal growth

Option – (b)

Q 36.: The direction and rate of water movement from cell to cell is based on

(A) WP

(B) TP


(D) Incipient plasmolysis

Option – (c)

Q 37.: Translocation of carbohydrate nutrients usually occurs in the form of

(A) Glucose

(B) Maltose

(C) Starch

(D) Sucrose

Option – (d)

Q 38.: Which of the following is used to determine the rate of transpiration in plants?

(A) Porometer

(B) Potometer

(C) Auxanometer

(D) Tensiometer

Option – (b)

Q 39.: Water entering root due to diffusion is part of

(A) Endosmosis

(B) Osmosis

(C) Passive absorption

(D) Active absorption

Option – (c)

Q 40.: Bidirectional translocation of minerals takes place in

(A) Xylem

(B) Phloem

(C) Parenchyma

(D) Cambium

Option – (a)


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We hope that these Chapter 11 Transport in Plants MCQs for Class 11 Biology helped you in learning new concepts. All questions are based on NCERT syllabus and some of them have been asked in various competitive exams. You can go to the next pages to practice more for Chapter 11 Transport in Plants MCQs for Class 11 Biology, click on the question range given above.

Also you can practice Class 11 Biology MCQs (Multiple Choice Questions) for other chapters.