(English Medium) ICSE Class 10 - CISCE Important Questions for Biology

Define the cohesive force.

What is the water potential?

Differentiate between the following:

Plasmolysis and Deplasmolysis.

Explain the Term:

Osmosis

Deplasmolysis occurs when a plasmolysed cell is placed in ______.

Arrange and rewrite the terms in the group in the correct order to be in a logical sequence beginning with the term that is underlined:

Xylem, Soil water, Cortical cells, Root hair.

Excessive use of fertilisers in agricultural fields reduces the yield of crops. Justify the statement.

What is Active transport?

Name the following:

Unicellular outgrowths from the epidermis of roots.

Arrange and rewrite the terms in group in correct order to be in a logical sequence, beginning with the term that is underlined:

Water vapour, Soil water, Leaves, Ascent of Sap.

Mention two adaptations in roots for absorption of water from the soil.

During a practical exam, a plant cell in a particular solution was placed under a compound microscope. Students were told to observe the cell and name the tonicity of the solution and mention the process that occurred in the cell.

Explain the term Active transport.

Mention one characteristic of roots for absorbing water from the soil.

The given statement is incorrect. Rewrite the correct statement:

Fresh water fish when placed in hypertonic salt solution absorb water and burst.

Define the following term:

Imbibition

 Choose the correct answer from the four options given below : 
Which one of the following does not affect the rate of transpiration ? 

Expand the following biological abbreviations :
(i) ABA 

Expand the following biological abbreviations : 
IAA

Given below is an apparatus which has setup to investigate a physiological process in plants. The setup was placed in bright sunlight. Answer the questions that follow:

Name the process being studies. Define the process.