In This Post we are providing Chapter-11 Transport in Plants NCERT MCQ for Class 11 Biology which will be beneficial for students. These solutions are updated according to 2021-22 syllabus. These MCQS can be really helpful in the preparation of Board exams and will provide you with a brief knowledge of the chapter.
NCERT MCQ ON TRANSPORT IN PLANTS
Question 1 : 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
Answer : turgor pressure of guard cells
Question 2 : 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
Answer : active transport
Question 3 : 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
Answer : solvent from low concentration of solution to higher concentration of solution.
Question 4 : Solution outside a cell has higher concentration than cytoplasm, then the solution is
- a) hypertonic
- b) acidic
- c) isotonic
- d) hypotonic
Answer : hypertonic
Question 5 : Which of the following is used as antitranspirant?
- a) Phenyl mercuric acetate
- b) Cobalt chloride
- c) Naphthol acetic acid
- d) Calcium carbonate
Answer : Phenyl mercuric acetate
Question 6: In rainy season, door gets swelled due to
- a) imbibition
- b) transpiration
- c) diffusion
- d) respiration
Answer : imbibition
Question 7 : 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
Answer : no exchange of water takes place
Question 8 : 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.
Answer : negative water potential
Question 9 : 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
Answer : Leaching
Question 10 : Water logging of soil makes it physiologically dry because
- a) this condition does not allow oxygen to enter the soil
- b) this condition does not allow the capillary force to work
- c) Both
- d) None of the above
Answer : this condition does not allow oxygen to enter the soil
Question 11 : The phenomenon of plasmolysis is evident when cells are kept in
- a) hypertonic solution
- b) isotonic solution
- c) None of the above
- d) hypotonic solution
Answer : hypertonic solution
Question 12 : The casparian strip prevents water and minerals from entering the stele through the
- a) apoplast
- b) xylem vessel
- c) plasmodesmata
- d) symplast
Answer : apoplast
Question 13: If a soft stemmed plant, is cut horizontally near the base of its stem with a sharp blade on early morning of a humid day, drops of solution ooze through cut stem. This is due to
- a) root pressure
- b) bleeding
- c) guttation
- d) transpiration pull
Answer : root pressure
Question 14 : 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
Answer : Guttation
Question 15 : The primary difference between the apoplast and the symplast is that the
- a) apoplast is nonliving spaces and cell walls
- b) apoplast relies on active transport.
- c) symplast is nonliving spaces and cell walls
- d) apoplast prevents passive diffusion
Answer : apoplast is nonliving spaces and cell walls