Question

What are the main functions of each of the following components?
a) Plasma membrane
b) Mitochondria
c) Nucleus
d) Ribosomes

Answer 1

Answer:

FUNCTION OF PLASMA MEMBRANE:-

~The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell.

FUNCTION OF MITOCHONDRIA :-

~ Mitochondria are membrane-bound cell organelles that generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).

FUNCTION OF NUCLEUS:-

~The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information. Nucleoli are small bodies often seen within the nucleus.

FUNCTION OF RIBOSOMES:-

~Ribosomes have two main functions — decoding the message and the formation of peptide bonds. These two activities reside in two large ribonucleoprotein particles (RNPs) of unequal size, the ribosomal subunits. Each subunit is made of one or more ribosomal RNAs (RNAs) and many ribosomal proteins (r-proteins).

Explanation:

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Answer 2

Answer:

PLASMA MEMBRANE:

It is a flexible membrane that surrounds the cell.It is a semi-permeable in natuer it helps by gaurding/protecting the nucleus

MITOCHONDRIA:

It is a rod shaped structure.The outer covering is smooth and the inner covering is deeply folded called cristae.These folds create many foldings called ATP generating chemical reaction.

NUCLEUS:

It is a control centre of the cell as it controls all the vital activities of a cell.

RIBOSOMES:

Ribosomes are minute particles consisting of RNA and associated proteins that function to synthesize proteins. Proteins are needed for many cellular functions such as repairing damage or directing chemical processes.

Explanation:

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