Question

give three similarities and one difference between mitochondria and plastids? class 9 biology chapter 5

Answer 1

Mitochondria

Pigments: Absent

Position: It is commonly present in both plant and animal cells.

Inner membrane: Inner membrane is inwardly many folded which are called crystae.

Chamber: It is divided by complete chambers.

Function: It is the respiratory organ for cell.

Food reserve: It does not store any food.

 

Plastid

Pigments: It has different pigments

Position: It is only found in plant cell.

Inner membrane: Folds are not found in the inner membrane.

Chamber: Chambers are not found.

Function: It is mainly an organelle involved in manufacturing food for cell.

Food reserve: Non pigmented plastid stores different food materials.

hope it will help you

Answer 2

Similarities

* Both mitochondria and plastids are double membrane bound organelles  

*Both mitochondria and plastid in their outer membrane have porin protein which makes outer layer more permeable.

*Both mitochondria and plastids have some of their own DNA for  protein synthesis hence they are called as semi autonomous cell  organelles.

Difference

*The difference between plastid and mitochondria is that plastid are found in plant cells and mitochondria are found in both plant and animal.