Question

Branched Chain Lipid Occurs In Cell Membrane Og

Answer 1

Explanation:

A cell is the structural and functional working unit of life and also been described as building blocks and fundamental unit of an organism. The term cell was first identified by an English philosopher Robert Hooke in the year 1665. The shape and size of the cells vary according to their functions and compositions. There are different types of cells and can be differentiated based on the presence and absence of few cell organelles.Cell Wall

Cell Wall

The cell wall is present only in plants, fungi, and bacteria. The image above represents a plant cell wall

The cell wall is the outermost covering of plant cells. It is present outside the cell membrane and is tough, flexible and sometimes rigid in its texture. It is mainly composed of cellulose, long fibres of carbohydrates including hemicellulose, lignin, and pectin.

The main functions of the cell wall

Protecting the cell against physical damage and invading pathogens.

Regulate and controls the direction of cell growth.

Providing the strength, structural support and maintaining the shape of the cell.

Functions as a storage unit by storing carbohydrates for use in plant growth, especially in seeds.

It acts as a selectively permeable membrane by allowing the entry of small molecules to pass through it.Cell Membrane is present in all organisms including plants

The cell membrane is also known as the plasma membrane. It is the outermost covering of animal cells. It is a semi-permeable membrane composed of lipids and proteins. The main functions of the cell membrane include:

Protecting the integrity of the interior cell.

Providing support and maintaining the shape of the cell.

Helps in regulating cell growth through the balance of endocytosis and exocytosis.

The cell membrane also plays an important role in cell signalling and communication.

It acts as a selectively permeable membrane by allowing the entry of only selected substances into the cell.

Also Read: Animal Cell

Difference between Cell Wall and Cell Membrane

One of the fundamental difference between the plasma membrane and the cell wall is in the type of organisms that they are found. The cell wall is present only in plants and the cell membrane is present in every living organism including plants.

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