Transport In Plants - Botany - Biology Previous Year Questions

Water is the best medium for the transport of dissolved minerals and food molecules because it has ______ .

The additional apoplastic route of water that allows direct access to xylem and phloem is along the margins of __________ .

The correct sequence of water absorption by root hair cell is ________

Capillarity theory was proposed by __________

Given below are two statements:

Statement I - During night, guard cells become flaccid.

Statement II - During day time, guard cells become turgid due to endosmosis.

In light of above statements, choose the most appropriate answer from the option given below.

Accessory cells of stomata are reservoirs of_________.

The water which percolates deep in the soil is ___________

Cuticular transpiration contributes to __________ $\%$ of total transpiration in plants.

An additional apoplastic route that allows direct access to xylem in plants is along the secondary roots because they __________

When roots are deprived of __________ they show a sudden drop in active absorption.

Given below are two statements about sap in xylem.

Statement I - Under normal conditions the sap in the xylem cell shows negative hydrostatic pressure.

Statement II - It also shows very low osmotic pressure.

In the light of above statements, Select the correct option given below:

Given below are two statements about absorption of water in plants.

Statement I - Water passes into the interface of cell wall and plasma membrane by diffusion.

Statement II -Water at the interface of cell wall and plasma membrane enters into the cytoplasm of the cell by osmosis.

In the light of above statements, select the correct option given below:

For facilitated diffusion in plant________ is essential.

The following forms of water EXCEPT _________ water is NOT available to plants for absorption.

Stomatal transpiration takes place during day time in the following plants EXCEPT __________

Water constitutes about ______________to ____________ $\%$ of plant cells and tissues.

Given below are two statements about absorption of water in plants.

Statement I - Rate of water absorption is maximum at soil temperature between 40 to $60^{\circ} \mathrm{C}$.

Statement II - High concentration of solutes in soil water increases the rate of absorption of water.

In the light of above statements, select the correct option given below:

Match the concepts given in Column I with their scientist who proposed them given in Column II.

Choose the correct option: