Transport in Plants MCQ Questions for Class 11 Biology Chapter 11 with Answers

Find here the NCERT chapter-wise Multiple Choice Questions from Class 11 Biology Book Chapter 11 Transport in Plants with Answers Pdf free download. This may assist you to understand and check your knowledge about the chapters. Students also can take a free test of the Multiple Choice Questions of Transport in Plants. Each question has four options followed by the right answer. These MCQ Questions are selected supported by the newest exam pattern as announced by CBSE.

NCERT Chapters for Class 11 Biology

Q1. If turgidity of a cell surrounded by water increases, the wall pressure will

(i) Decrease
(ii) Increase
(iii) Fluctuate
(iv) Remain unchanged.

(ii) Increase.

Q2. Which of the following is decreased during increase in humidity in the atmosphere?

(i) Transpiration
(ii) Photosynthesis
(iii) Respiration
(iv) Glycolysis

(i) Transpiration

Q3. A concept fundamental to understanding water movement is called

(i) Pressure potential
(ii) Water potential
(iii) Solute potential
(iv) Concentration gradient

(ii) Water potential

Q4. The water potential and osmotic potential of pure water are

(i) zero and zero
(ii) 100 and zero
(iii) 100 and 100
(iv) None of these

(i) zero and zero

Q5. The contraction of the protoplast due to exosmosis when the cell is placed in hypertonic solution is called

(i) Deplasmolysis
(ii) Plasmolysis
(iii) Both (i) and (ii)
(iv) None of these.

(ii) Plasmolysis.

Q6. Which of the following is the unit of ψ?

(i) Pascal
(ii) Joule
(iii) Newton
(iv) Electron volt

(i) Pascal

(i) Transpiration
(ii) Respiration
(iii) Ascent of sap
(iv) Photosynthesis

(iii) Ascent of sap

Q8. Plasmolysis occurs when the cell is placed in

(i) hypertonic solution
(ii) isotonic solution
(iii) hypotonic solution
(iv) None of the above

(i) hypertonic solution

Q9. In a fully turgid cell turgor pressure (T.P.) is equal to

(i) Osmotic pressure
(ii) Diffusion pressure deficit
(iii) Wall pressure
(iv) None of these.

(i) Osmotic pressure.

Q10. Dry seeds kept in water swell due to

(i) absorption
(ii) diffusion
(iii) imbibition
(iv) none of these

(iii) imbibition

Q11. The molecules which move from higher to lower regions are called as

(i) Imbibition
(ii) Diffusion
(iii) Osmosis
(iv) Guttation

(ii) Diffusion

Q12. The movement of mineral ions into plant root cells as a result of diffusion is called

(i) passive absorption
(ii) active absorption
(iii) osmosis
(iv) endocytosis

(i) passive absorption

Q13. Guttation in plants is regulated by

(i) Humidity
(ii) Availability of water in soil
(iii) Temperature
(iv) AH of these.

(iv) All of these.

Q14. Ψs is always

(i) positive
(ii) zero
(iii) negative
(iv) one

(iii) negative

Q15. The system of adjacent cell walls that is continuous throughout the plant is called as

(i) Symplast
(ii) Apoplast
(iii) Guttation
(iv) Root pressure

(ii) Apoplast

Q16. Solution outside a cell has higher concentration than cytoplasm, then the solution is

(i) hypertonic
(ii) acidic
(iii) isotonic
(iv) hypotonic

(i) hypertonic

Q17. Stomata open during day and close during night under inesophytic conditions in type.

(i) Leucerne
(ii) Patato
(iii) Cereal
(iv) Barley

(i) Leuceme

Q18. Two types of molecules cross the membrane in the same direction, it is called as

(i) Uniport
(ii) Symport
(iii) Antiport
(iv) Multiport

(ii) Symport

Q19. Stomata close down if relative humidity of atmosphere falls below

(i) 50%
(ii) 70%
(iii) 80%
(iv) 60%

(i) 50%

Q20. In rainy season, door gets swelled due to

(i) imbibition
(ii) transpiration
(iii) diffusion
(iv) respiration

(i) imbibition

Q21. The direction and rate of water movement from cell to cell is based on:

(i) Wall pressure
(ii) Turgor pressure
(iii) Incipient plasmolysis
(iv) Diffusion pressure deficit.

(iv) Diffusion pressure deficit.

Q22. Which of the following is true about diffusion?

(i) There is no expenditure of energy.
(ii) Molecules move in Brownian motion.
(iii) Substances moves from the region of higher concentration to the region of lower concentration.
(iv) Diffusion depends on the type of living system.

(iv) Diffusion depends on the type of living system.

Q23. The pathway of the movement of water through the cell wall only is called

(i) Symplast pathway
(ii) Vacuolar pathway
(iii) Plasmodesmata pathway
(iv) Apoplast pathway

(iv) Apoplast pathway

Q24. Which one of the following process help the water- soluble inorganic nutrients go down into the soil horizon and get precipitated as unavailable salts?

(i) Leaching
(ii) Fragmentation
(iii) Catabolism
(iv) None of these

(i) Leaching

Q25. Entry of water from soil to xylem is through:

(i) Gradient of ion concentration
(ii) Gradient of suction pressure
(iii) Gradient of imbibition
(iv) Gradient of turgor pressure.

(ii) Gradient of suction pressure.

Q26. Water is lost in a liquid state in some plants through hydathodes. These hydathodes

(i) do not show any specificity in opening and closing
(ii) remain closed during day
(iii) remain closed at night
(iv) remain always open

(iv) remain always open

Q27. Which of the following has highest water potential?

(i) 1 M sugar solution
(ii) Distilled water
(iii) 1 M salt solution
(iv) 1 M sugar solution with 2-3 bar pressure

(ii) Distilled water

Q28. The casparian strip prevents water and minerals from entering the stele through the

(i) apoplast
(ii) xylem vessel
(iii) plasmodesmata
(iv) symplast

(i) apoplast

Q29. Which one of the following helps in holding the leaves position and soft stems to stay erect.

(i) Transpiration
(ii) Turgidity of cells.
(iii) Rigidity of the cell wall
(iv) stomatal cells.

(ii) Turgidity of cells.

Q30. Cohesion theory of water movement in plants was put forth by

(i) Henry Dixon
(ii) F. F. Blackman
(iii) Melvin cycle
(iv) Hans. A. Krebs

(i) Henry Dixon

Q31. Transport of water and mineral in plants take place through

(i) Collenchymas tissues
(ii) Phloem tissues
(iii) Parenchyma
(iv) Xylem tissues

(iv) Xylem tissues

Q32. The movement of water up the stems of tall plants is least dependent on which of the following factors ?

(i) Guttation
(ii) Transpiration
(iii) Cohesiveness of water molecules
(iv) Tension within column of water molecules

(i) Guttation

Q33. Stomata open when the guard cells have:

(i) Less K+
(ii) More K+
(iii) More abscisic add
(iv) AH of those.

(ii) More Ki+

Q34. When a plant is girdled (ringed)

(i) the root and shoot die at the same time
(ii) the shoot dies first
(iii) the root dies first
(iv) neither root nor shoot will die

(iii) the root dies first

Q35. In plants, capillarity is aided by the small diameter of

(i) Trachery elements
(ii) Cortical cells
(iii) Parenchyma cells
(iv) Phloem tissue

(i) Trachery elements

Q36. Death of protoplasm is a pre-requisite for a vital function like

(i) transport of sap
(ii) transport of food
(iii) absorption of water
(iv) gaseous exchange

(i) transport of sap

Q37. Radial conduction of water takes place by

(i) phloem
(ii) vessels
(iii) vessels and tracheids
(iv) ray parenchyma cells

(iv) ray parenchyma cells

Q38. The form of sugar transported through the phloem is

(i) Sucrose
(ii) Fructose
(iii) Ribose
(iv) Glucose

(i) Sucrose

Q39. Root system in a plant is well developed

(i) due to deficiency of auxins
(ii) due to deficiency of cytokinins
(iii) due to deficiency of minerals
(iv) for increased absorption of water

(iv) for increased absorption of water

Class 11 Biology MCQs Multiple Choice Questions with Answers

I Think the given NCERT MCQ Questions for class 11 Biology book Chapter 11 Transport in Plants with Answers Pdf free download will assist you. If you’ve got any queries regarding CBSE Class 11 Biology Transport in Plants MCQs Multiple Choice Questions with Answers, drop a comment below and that we will come back to you soon.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top