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NEET NEET Questions — Free MCQ Practice

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Tensile strength is

A. Mutual attraction between water molecules B. Attraction of water molecules to polar surfaces C. More attraction in water molecules in liquid phase than in gaseous phase D. An ability to resist a pulling force.

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Explanation

Page number-188

11.4 Transpiration

Transport in Plants

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Cohesion is

A. Mutual attraction between water molecules B. Attraction of water molecules to polar surfaces C. More attraction in water molecules in liquid phase than in gaseous phase D. An ability to resist a pulling force.

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Explanation

Page number-188

11.4 Transpiration

Transport in Plants

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Adhesion is

A. Mutual attraction between water molecules B. Attraction of water molecules to polar surfaces C. More attraction in water molecules in liquid phase than in gaseous phase D. An ability to resist a pulling force.

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Explanation

Page number-188

11.4 Transpiration

Transport in Plants

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Surface Tension is

A. Mutual attraction between water molecules B. Attraction of water molecules to polar surfaces C. More attraction in water molecules in liquid phase than in gaseous phase D. An ability to resist a pulling force.

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Explanation

Page number-188

11.4 Transpiration

Transport in Plants

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Capillarity is

A. Mutual attraction between water molecules B. Attraction of water molecules to polar surfaces C. Ability to rise in thin tubes D. An ability to resist a pulling force.

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Explanation

Page number-188

11.4 Transpiration

Transport in Plants

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Capillarity is not aided by

A. Cohesion B. Adhesion C. Tensile strength D. Small diameters of the tracheary elements- the tracheids and vessels

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Explanation

Page number-188

11.4 Transpiration

Transport in Plants

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The forces which are generated in xylem by transpiration pull can cause lifting of water up to

A. 110 metres B. 13 metres C. 130 metres D. 19 metres

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Explanation

Page number-188

11.4 Transpiration

Transport in Plants

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Evaporation from the leaf at first sets up a pressure gradient between the

A. Outside air and cytoplasm of cells of leaf B. Outside air and air spaces of the leaf C. Outside air and xylem cells of the leaf D. Outside air and palisade cells of leaf

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Explanation

Page number-188

11.4 Transpiration

Transport in Plants

Hint: see the caption of Figure 11.9

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Which of the following is not a purpose of Transpiration?

A. Absorption of minerals and water from the soil and transport in the plants B. Supplies water for photosynthesis C. Evaporative heating D. Maintains the shape and structure of the plants by keeping cells turgid

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Explanation

Page number-189

11.4 Transpiration

11.4.1 Transpiration and Photosynthesis-a compromise

Transport in Plants

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Transpiration can cool the leaf surface up to

A. 10 to 15 degrees B. Up to 70 degrees C. Up to 2 degrees D. Up to 50 degrees

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Explanation

Page number-189

11.4 Transpiration

11.4.1 Transpiration and Photosynthesis-a compromise

Transport in Plants

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