Question

what are the functions of plasma membrane ,mitochondria and lysosomes

Answer 1

Here's your answer mate.
1】Plasma Membrane:It is the outermost covering of the cell that separates the contents the cell from its external environment.It allows the entry and exit of materials.
2】Mitochondria:It is also known as the power house of the cell.The energy required for various activities in cell is produced by it in the form of ATP 【Adenosine triphosphate】 molecules.
3】Lysosomes: Lysosomes are kind of a waste disposal system of the cell.they help to keep the cell clean by digesting any foreign material.They are also known as "Suicide Bags"
of the cells.

Hope it helps.

Answer 2

Functions of plasma membrane :-
#1. It holds the cell contents.
#2. It protects the cell from external harsh environment
#3. It helps in mediated transportation

Functions of Mitochondria:-
#1. It stores energy in the form of ATP molecules.
#2. it helps in cellular respiration
#3. It has its own DNA, so it can reproduce itself.

Functions of Lysosomes:-
#1. It clears out garbage from the cell hence called scavengers.
#2. It releases it enzymes when cell damages so that it can transfer energy.
#3. It digests the unnecessary contents of the cell.