The Fundamental Unit of Life 1 long answers

Question 1

What is osmosis and state an example ?

Answer 1

The movement of solvent from a region of its higher or lower concentration to a region of lower or higher concentration through a semi-permeable membrane. Absorption of water by plant roots is an example of osmosis.

Question 2

What is the plasma membrane ?

Answer 2

The outermost covering of the cell that separates it from its environments known as its plasma membrane. It also allows or permits the entry of some materials in and out of the cell and will prevent the movement of other materials. It is also known as a selectively permeable membrane .The plasma membrane is flexible and is made up of organic molecules called lipids and proteins

Question 3

What are Cell Organelles ?

Answer 3

Large and complex cells need a lot of chemical activities to support their complicated structure and function. To keep these activities of different kinds
separate from each other, these cells use membrane-bound little structures )within themselves. These are cell organelles and they are the body parts of the cell.