CELL STRUCTURES AND FUNCTION
CELL STRUCTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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have RNA, not DNA.
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do not have cell wall.
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have mesosome instead of mitochondria.
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have cell membranes as well as nuclear envelope.
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Detailed explanation-1: -Infoldings of the cell membrane in prokaryotic cells. They are considered analogous to mitochondrial cristae of eukaryotic cells. Mesosomes help in the synthesis of the cell membrane, protein synthesis, replication of DNA, and equal distribution of chromosomes during cytokinesis.
Detailed explanation-2: -Mesosomes are the infoldings of cell membrane which. (i) are present in both prokaryotic and eukaryotic cells.
Detailed explanation-3: -Mesosomes are structures of prokaryotic cells formed by folded invaginations (sometimes described simply as “infoldings") of the plasma membrane. Enzymes associated with respiration of the prokaryotic cell, e.g. a bacterium, are located on the infoldings. Not All prokaryotic cells have mesosomes.
Detailed explanation-4: -Note: Mesosomes are absent in eukaryotic cells but they are analogous to the eukaryotic mitochondria. Mesosomes help in the respiration in the bacteria. They are very rich in enzymes and folding of the bacterial cell membrane.
Detailed explanation-5: -Mesosomes are the infoldings of cell membrane, which. (i) are present in both prokaryotic and eukaryotic cells. (ii) help in cell wall formation, DNA replication and respiration. (iii) increase the surface area of plasma membrane.