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11th Standard Botany - Transport in Plants English Medium Free Online Test One Mark Questions with Answer Key 2020 - 2021

11th Standard

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Botany

Time : 00:10:00 Hrs
Total Marks : 10

    Answer all the questions

    10 x 1 = 10
  1. Which among the following is correct?
    i. apoplast is fastest and operate in nonliving part. 
    ii. The transmembrane route includes vacuole.
    iii. symplast interconnect the nearby cell through plasmadesmata.
    iv. symplast and transmembrane route are in living part of the cell

    (a)

    i and ii

    (b)

    ii and iii

    (c)

    iii and iv

    (d)

    i, ii, iii, iv

  2. Which of the following physical force is responsibl for ascent of sap?

    (a)

    Imbibition

    (b)

    Capillary force

    (c)

    Transpiration pull and cohesion

    (d)

    Root pressure

  3. Identify the wrong statement with reference to Diffusion
    i) It is seen in gases and liquids.
    ii) It is a active process and hence no energy expenditure is required.
    (iii)The rate of diffusion is determined by concentration gradient.
    (iv) It is independent of the living system.

    (a)

    ii and iii

    (b)

    i and iv

    (c)

    ii only

    (d)

    i only

  4. Water potential of pure water is __________

    (a)

    O

    (b)

    -2

    (c)

    2

    (d)

    +2

  5. Experiment with Balsam demonstrates

    (a)

    Translocation of solute

    (b)

    Plasmolysis

    (c)

    Transpiration pull

    (d)

    Ascent of Sap

  6. Choose the correct statement.
    (i) In guard cells starch is converted to malic acid.
    (ii) Stomata open in dark and close in light.
    (iii) Accumulation of CO2 in guard cells lowers the pH level.
    (iv) CO2 is a natural antitranspirant

    (a)

    i, ii, iii

    (b)

    i, ii, iii, iv

    (c)

    none

    (d)

    i, iii, iv

  7. _________ observed correlation between respiration and anion absorption.

    (a)

    Lundegardh

    (b)

    Donnan

    (c)

    Bennet

    (d)

    Overton

  8. __________ is a large transporter protein found in outer membrane of plastids mitochondria etc.,

    (a)

    Aquaporin

    (b)

    Uniport

    (c)

    Porin

    (d)

    Cellulose

  9. The concept of water potential was introduced by ___________

    (a)

    Slatyer

    (b)

    Dixon

    (c)

    Bose

    (d)

    Lundegardh

  10. In a turgid cell ____________ is seen

    (a)

    TP = WP

    (b)

    TP- WP = Turgid

    (c)

    TP +WP = Turgid

    (d)

    As TP increases WP decreases

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