MEDIUM
9th CBSE
IMPORTANT
Earn 100

Why is plasma membrane called a selectively permeable membrane? How do substances like CO2 and water move in and out of the cell?

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 2
List two main functions of plasma membrane.
MEDIUM
9th CBSE
IMPORTANT
Biology for Class IX>Chapter 2 - The Fundamental Unit of Life>Exercise>Q 3
State two functions of cell membrane.
HARD
9th CBSE
IMPORTANT
Biology for Class IX>Chapter 2 - The Fundamental Unit of Life>Exercise>Q 4
Draw a well labelled diagram showing fluid mosaic model of plasma membrane.
MEDIUM
9th CBSE
IMPORTANT
Biology for Class IX>Chapter 2 - The Fundamental Unit of Life>Exercise>Q 5
A plant cell is placed in a hypotonic solution. What Will happen? Will the cell burst? Why or why not?
MEDIUM
9th CBSE
IMPORTANT
Biology for Class IX>Chapter 2 - The Fundamental Unit of Life>Exercise>Q 6
What will happen to a plant cell if it is kept in sugar solution? Explain.
MEDIUM
9th CBSE
IMPORTANT
Biology for Class IX>Chapter 2 - The Fundamental Unit of Life>Exercise>Q 7
Do plants reveal phenomenon of endocytosis? Why or why not?
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?