MEDIUM
9th CBSE
IMPORTANT
Earn 100

Lysosomes are called by different names such as suicidal bags of the cell, cells waste disposal system or demolition squads. Justify.

Important Questions on Cell—Fundamental Unit of Life

EASY
9th CBSE
IMPORTANT
Pearson IIT Foundation Biology>Chapter 1 - Cell—Fundamental Unit of Life>PRACTICE QUESTIONS>Q 55
The inner membrane of mitochondria possesses finger-like projections. Give reason.
EASY
9th CBSE
IMPORTANT
Pearson IIT Foundation Biology>Chapter 1 - Cell—Fundamental Unit of Life>PRACTICE QUESTIONS>Q 56
More number of mitochondria are found in actively dividing cells. Give reason.
EASY
9th CBSE
IMPORTANT
Pearson IIT Foundation Biology>Chapter 1 - Cell—Fundamental Unit of Life>PRACTICE QUESTIONS>Q 57

Identify the odd one among the following and justify.

Chloroplast, Mitochondria, Leucoplasts, Chromoplasts

MEDIUM
9th CBSE
IMPORTANT
Pearson IIT Foundation Biology>Chapter 1 - Cell—Fundamental Unit of Life>PRACTICE QUESTIONS>Q 58
Mitochondria and plastids are known as semi-autonomous organelles of the cell. Give reason.
EASY
9th CBSE
IMPORTANT
Pearson IIT Foundation Biology>Chapter 1 - Cell—Fundamental Unit of Life>PRACTICE QUESTIONS>Q 59
When a bottle stopper and onion peel are placed in water for some time, then cut into slices, what observation is seen under a microscope?
MEDIUM
9th CBSE
IMPORTANT
Pearson IIT Foundation Biology>Chapter 1 - Cell—Fundamental Unit of Life>PRACTICE QUESTIONS>Q 60
Dried raisins or dates are placed in normal water first and later in concentrated salt solution. Discuss the changes taking place in them.
EASY
9th CBSE
IMPORTANT
Pearson IIT Foundation Biology>Chapter 1 - Cell—Fundamental Unit of Life>PRACTICE QUESTIONS>Q 61
'Mitochondria are the powerhouses of the cell'. Discuss.
EASY
9th CBSE
IMPORTANT
Pearson IIT Foundation Biology>Chapter 1 - Cell—Fundamental Unit of Life>PRACTICE QUESTIONS>Q 62
Why is plasma membrane known as semi permeable membrane?