MEDIUM
9th CBSE
IMPORTANT
Earn 100

In brief, state what happens when a red blood cell is kept in concentrated salt solution.

Important Questions on Model Test Paper 1

MEDIUM
9th CBSE
IMPORTANT
Science for Ninth Class (Part-3) Biology>Chapter 7 - Model Test Paper 1>SECTION-A>Q 20
In brief, state what would happen if the plasma membrane of a cell breaks down.
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth Class (Part-3) Biology>Chapter 7 - Model Test Paper 1>SECTION-A>Q 20
In brief, state what happens when rheo leaves are boiled in water first and then a drop of sugar syrup is put on it.
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth Class (Part-3) Biology>Chapter 7 - Model Test Paper 1>SECTION-A>Q 20
In brief, state what happens when Golgi apparatus is removed from the cell.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class (Part-3) Biology>Chapter 7 - Model Test Paper 1>SECTION-A>Q 21
Razia saw excessive growth of blue-green algae in the nearby pond of her village. State the reason.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class (Part-3) Biology>Chapter 7 - Model Test Paper 1>SECTION-A>Q 21
Razia saw excessive growth of blue-green algae in the nearby pond of her village. Fish, which were in plenty, were nowhere to be seen. State the reason.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class (Part-3) Biology>Chapter 7 - Model Test Paper 1>SECTION-A>Q 21
Razia saw excessive growth of blue-green algae in the nearby pond of her village. Fish, which were in plenty, were nowhere to be seen. The pond has started stinking. The water of the pond changes its colour and is found to be not suitable for its cattle. Some of the cattle who have visited the pond for drinking and bathing have fallen sick. State the reason.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class (Part-3) Biology>Chapter 7 - Model Test Paper 1>SECTION-A>Q 21
Razia saw excessive growth of blue-green algae in the nearby pond of her village. Fish, which were in plenty, were nowhere to be seen. The pond has started stinking. The water of the pond changes its colour and is found to be not suitable for its cattle. Some of the cattle who have visited the pond for drinking and bathing have fallen sick. What explanation would Razia give for these anomalies to the panicked villagers?
HARD
9th CBSE
IMPORTANT
Science for Ninth Class (Part-3) Biology>Chapter 7 - Model Test Paper 1>SECTION-B>Q 22

An inflated balloon full of air goes down slowly (becomes smaller and smaller slowly) even though the knot at the mouth of the balloon is airtight. And after a week all the air has escaped from the balloon. Explain how the air particles got out of the balloon.