How many different proteins does the ribosome consist of?
How many different proteins does the ribosome consist of?
60
40
20
80
The Correct Option is D
Solution and Explanation
The ribosome is a complex molecular machine found within all living cells. It is responsible for synthesizing proteins by translating the genetic information encoded in messenger RNA (mRNA). Ribosomes consist of both ribosomal RNA (rRNA) and proteins. In prokaryotes, such as bacteria, ribosomes are made of three rRNA molecules and about 50 proteins, forming a 70S ribosome. In contrast, eukaryotic ribosomes are larger and are composed of four rRNA molecules and approximately 80 different proteins, forming an 80S ribosome.
This significant protein component of the eukaryotic ribosome reflects its structural complexity and the diverse functions it performs. Each protein plays a crucial role in ensuring the precise and efficient translation of mRNA into proteins.
Therefore, the number of different proteins present in the ribosome of eukaryotic cells is 80.
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Concepts Used:
Cell: The Unit of Life
- A cell is derived as the functional and structural unit of life. Every cell is surrounded by a cell membrane that dissects the external and internal environments of the cell. The interior environment of a cell is called the cytoplasm.
- It carries cellular machinery and structural elements. The nucleus is present in the center of the cell, which includes all the hereditary information of an organism. Some of the molecules present in the cell are protein, carbohydrates, starch, and sugar.
Read More: Fundamental Unit of Life: Cell
Parts of Cell:
The different parts of a cell and their functions are as follows:
- Cell Membrane
- Cell Wall
- Nucleus
- Cytoplasm
