A cell will swell up if: - Vidyadip

MCQ

A cell will swell up if:

A
The concentration of water molecules in the cell is higher than the concentration of water molecules in surrounding medium.
✓
The concentration of water molecules in surrounding medium is higher than water molecules concentration in the cell.
C
The concentration of water molecules is same in the cell and in the surrounding medium.
D
Concentration of water molecules does not matter.

✓

Answer

Correct option: B.

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

Osmosis is a spontaneous process where movement of solvent molecules occurs into a region of higher solute concentration from lower solute concentration through a partially permeable membrane, so as to tend to equalise the solute concentration on the two sides.
When movement of the solvent takes place from outside to inside the all $($inward movement$)$ the process is endosmosis. It occurs in hypotonic solution and causes the swelling of cell.

Osmosis is a spontaneous process where movement of solvent molecules occurs into a region of higher solute concentration from lower solute concentration through a partially permeable membrane, so as to tend to equalise the solute concentration on the two sides.
When movement of the solvent takes place from outside to inside the all $($inward movement$)$ the process is endosmosis. It occurs in hypotonic solution and causes the swelling of cell.

When the concentration of water both in the surrounding medium and in the cell is same, the solution in the the surrounding medium is said to be isotonic and no movement of water molecule takes place.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q. [1 M]" from The Fundamental Unit of Life→The Fundamental Unit of Life — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

Plasmolysis occurs due to:

A ball is dropped onto the floor from a height of $20 m$. It rebounds to a height of $10 m$. If the ball is in contact with the floor for $0.1$ seconds, what is the average acceleration during contact?

Percentage of total water found as fresh water is:

You are given the following substances with their boiling and melting points.

Substance	Boiling Point $(^\circ C)$	Melting Point $(^\circ C$)
$A$	$-183$	$-219$
$B$	$445$	$119$
$C$	$78$	$-15$

Point out the physical states of $A, B$ and $C$ at room temperature $(30^\circ C).$

The mass number of two atoms $X$ and $Y$ is the same ($40$ each) but their atomic numbers are different (being $20$ and $18$ respectively). $X$ and $Y$ are examples of:

In intercropping, there is maximum utilization of the supplied nutrients because:

A body cannot have a:

Which scientist was the first to observe red blood cells in humans and other animals?

Species diversity ___ the further from the mainland.

The nucleus of the hydrogen atom is called as: