ICSE Class 10 Biology Competency Focused Practice Questions Solution-Fill in the Blank

ICSE Class 10 Biology Competency Focused Practice Questions Solution:

Fill in the Blank (1 mark each)

Question 22
Osmosis is controlled by the concentration of …………… molecules.

Answer:

Osmosis is controlled by the concentration of water molecules.

Question 23
An animal cell is kept in a lower solute concentration fluid. The cell will …………… . (Enlarge / Shrink)

Answer:

An animal cell is kept in a lower solute concentration fluid. The cell will enlarge.

Question 24
Plants absorb water from the roots because the cell sap is …………… (more, less) concentrated than the surrounding fluids.

Answer:

Plants absorb water from the roots because the cell sap is more concentrated than the surrounding fluids.

Question 25
Human red blood cells, when kept in a hypertonic solution, …………… occurs. (Osmosis, endosmosis, exosmosis)

Answer:

Human red blood cells, when kept in a hypertonic solution, exosmosis occurs.

Question 26
Given below is an experimental setup. Read the information given below the diagram and answer the questions from 26-30.

biology-competency-focused-practice-questions-solution


Concentrated sugar solution is taken in the thistle funnel. The mouth of the thistle funnel is covered with cellophane paper. The thistle funnel is inverted in a beaker containing water.

The above experiment demonstrates …………… .

Answer:

The above experiment demonstrates osmosis .

Question 27
After a few hours, the level of the sugar solution …………… in the thistle funnel.

Answer:

After a few hours, the level of the sugar solution increases in the thistle funnel.

Question 28
It allows only …………… molecules to pass through it freely.

Answer:

It allows only water molecules to pass through it freely.

Question 29
It prevents the passage of …………… molecules.

Answer:

It prevents the passage of sugar molecules.

Question 30
A control experiment can be set up by taking plain …………… in the thistle funnel and placing it in another beaker containing water.

Answer:

A control experiment can be set up by taking plain water in the thistle funnel and placing it in another beaker containing water.


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Chapter wise Quiz/MCQ/Test

CBSE Chapter-wise Quiz for Class 6

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Sample Papers

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Sample Papers for Class 7

Sample Papers for Class 8

Sample Papers for Class 9

Sample Papers for Class 10

Board Papers

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