Describe the function of the following :-
• Cell wall
• Cell membrane
• Nucleus
• Ribosomes
• Lysosomes
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Answers
.Nucleus
The nucleus contains genetic material or DNA in the form of chromatin, or, during mitosis or late interphase, chromosomes. All transcription and replication of genetic material takes place within the nucleus, as does RNA processing. The nucleolus also resides within the nucleus, and is responsible for RNA transcription and folding. Translation of RNA transcripts takes place outside of the nucleus
.cell wall
A cell wall is a structural layer surrounding some types of cells, just outside the cell membrane. It can be tough, flexible, and sometimes rigid. It provides the cell with both structural support and protection, and also acts as a filtering mechanism. ... In bacteria, the cell wall is composed of peptidoglycan.
.cell membrane
The cell membrane is a biological membrane that separates the interior of all cells from the outside environment which protects the cell from its environment. The cell membrane consists of a lipid bilayer, including cholesterols that sit between phospholipids to maintain their fluidity at various temperatures.
. ribosome
Ribosomes are macromolecular machines, found within all living cells, that perform biological protein synthesis. Ribosomes link amino acids together in the order specified by the codons of messenger RNA molecules to form polypeptide chains.
. lysosome
A lysosome is a cell organelle. They are like spheres. ... With a wider definition, lysosomes are found in the cytoplasm of plant and protists as well as animal cell. Lysosomes work like the digestive system to break down, or digest, proteins, acids, carbohydrates, dead organelles, and other unwanted materials.