Question

Write the functions of the following
a) Cell wall
b) Nucleolus

Answer 1

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a) cell wall: 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.

b) Nucleolus: The nucleolus makes ribosomal subunits from proteins and ribosomal RNA, also known as rRNA. It then sends the subunits out to the rest of the cell where they combine into complete ribosomes. Ribosomes make proteins; therefore, the nucleolus plays a vital role in making proteins in the cell.

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Answer 2

Answer:

Cell wall: Cell wall is an additional boundary over cell membrane in plant cells. It provides an additional protection to the plant cells as they don't show locomotion.

Nucleolus: It is the dense material that is responsible for making ribosomes.