Question

What are the main functional regions of a cell ? Explain them.

Answer 1

All cells have three basic parts:

a. A plasma membrane separates each cell from the environment, permits the flow of molecules across the membrane, and contains receptors that can affect the cell’s activities. It provides overall rigidity and shape to the cell. It also protects the cell from external harmful agents like bacteria, virus, etc.

b. A DNA-containing region occupies a portion of the interior . This region is the nucleus consisting of chromatin fibres for storing one's heredity.

c. The cytoplasm contains membrane-bound compartments (except bacteria), particles, and filaments&endash;all bathed in a semifluid substance . it also contains some important parts like mitochondria, golgi bodies, robustness, etc. Thus most of the chemical reactions of a cell take place in the cytoplasm.

Answer 2

Answer:

$\huge\mathfrak\blue{Question:-}$What are the main functional regions of a cell ? Explain them.

$\huge\mathfrak\blue{Answer:-}$ Main functional regions of a cell:

a) Plasma membrane : Plasma membrane form the outermost boundary of cytoplasm. It is extremely delicate, thin, elastic membrane which is selectively permeable. It is a living membrane and is made up of lipids and protiens.

b) Cytoplasm : Cytoplasm is a thick jelly like fluid inside the cell membrane. It occupies the space between cell membrane and the nucleus. All the life functions take place in the cytoplasm. There are many small cytoplasmic bodies in cytoplasm. These are called cell organelles.

c) Nucleus : Nucleus is a large spherical organelle presents in all the cells. Nucleus controls all the activities of cell. It is surrounded by a thin membrane called nuclear membrane. The nucleus consists of a nuclear membrane, nucleoplasm, nucleolus and chromosomes.