MEDIUM
9th CBSE
IMPORTANT
Earn 100

Do plants reveal phenomenon of endocytosis? Why or why not?

Important Questions on The Fundamental Unit of Life

MEDIUM
9th CBSE
IMPORTANT
Biology for Class IX>Chapter 2 - The Fundamental Unit of Life>Exercise>Q 8
Human RBCs are placed in a hypertonic salt solution. What will happen to them and why?
MEDIUM
9th CBSE
IMPORTANT
Biology for Class IX>Chapter 2 - The Fundamental Unit of Life>Exercise>Q 9
Raisins swell up when placed in water. Why?
MEDIUM
9th CBSE
IMPORTANT
Biology for Class IX>Chapter 2 - The Fundamental Unit of Life>Exercise>Q 10
A teacher soaked 10g raisins in 35ml of distilled water in a beaker A and similar amount in beaker B. She maintained the temperature of beaker A at 20oC and beaker B at 40oC. After an hour compare the percentage of water absorbed by raisins in beaker A and B.
MEDIUM
9th CBSE
IMPORTANT
Biology for Class IX>Chapter 2 - The Fundamental Unit of Life>Exercise>Q 11
Differentiate between diffusion and osmosis.
EASY
9th CBSE
IMPORTANT
Biology for Class IX>Chapter 2 - The Fundamental Unit of Life>Exercise>Q 11
Differentiate between endosmosis and exosmosis.
MEDIUM
9th CBSE
IMPORTANT
Biology for Class IX>Chapter 2 - The Fundamental Unit of Life>Exercise>Q 11
Differentiate between hypertonic and hypotonic solution.
MEDIUM
9th CBSE
IMPORTANT
Biology for Class IX>Chapter 2 - The Fundamental Unit of Life>Exercise>Q 12
Two beakers A and B contain plain water and concentrated sugar solution respectively. Equal number of dry raisins are kept in them for a few hours and then taken out.
(i) Explain the reason for the difference in the physical appearance of raisins which were taken out of the two beakers.
(ii) On the basis of above observation, categorise the two solution as hypotonic and hypertonic.
MEDIUM
9th CBSE
IMPORTANT
Biology for Class IX>Chapter 2 - The Fundamental Unit of Life>Exercise>Q 13
What are the differences between the plasma membrane and cell wall?