Question:
Which one of the following structures is an organelle within an organelle?
Which one of the following structures is an organelle within an organelle?
Updated On: Jul 12, 2022
- Ribosome
- Peroxisome
- ER
- Mesosome.
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The Correct Option is A
Solution and Explanation
Ribosomes occur in all living cells except mammalian erythrocytes or red blood corpuscles. Depending upon the place of their occurrence, ribosomes are of two types-cytoplasmic ribosomes and organelle ribosomes. The cytoplasmic ribosomes (cytoribosomes) may remain free in the cytoplasmic matrix or attached to the cytosolic surface of endoplasmic reticulum with the help of special ribophorin or SRP protein. The organelle ribosomes are found in plastids (plastiribosomes) and mitochondria (mitoribosomes) Cytoplasmic ribosome are of SOS type in eukaryotic cell whereas organelle ribosomes are of 70S type.
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Concepts Used:
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- 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
