NCERT Exemplar Solutions Class 9 Science Solutions for The Fundamental Unit of Life - Exercise in Chapter 5 - The Fundamental Unit of Life

Question 20 The Fundamental Unit of Life - Exercise

A cell will swell up if

Answer:

(b) The concentration of water molecules in the surrounding medium is higher than water molecules concentration in the cell.

Explanation:

When the concentration of water molecules in the surrounding medium is higher than water molecules concentration in the cell, water from the surrounding enters the cell through osmosis and the cell swells up.

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Exercises

The Fundamental Unit of Life - Exercise

Chapters

Matter in our Surroundings

Is Matter Around Us Pure ?

Atoms and Molecules

Structure of the Atom

The Fundamental Unit of Life

Tissues

Diversity in Living Organisms

Motion

Force and Laws of Motion

Gravitation

Work and Energy

Sound

Why Do We Fall ill ?

Natural Resources

Improvement in Food Resources