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Question
Infoldings of plasma membrane in bacteria are called as
Infoldings of plasma membrane in bacteria are called as
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Solution
The correct option is D Mesosomes
Pili are elongated, hollow appendage made of a special protein, pilin and serve in transfer of DNA to other cells and in cell adhesion. Mesosome is an extension of the cell membrane presence in cytoplasm as infolding and serves to increases surface area. The non-essential extra-chromosomal DNA is called as plasmid; it can be present in free or integrated form into the chromosome and are duplicated and passed on to offspring. Though not essential to bacterial growth and metabolism yet they confer protective traits such as antibiotics/drugs/toxins resistance. The plasmids with ability to integrate themselves in cellular chromosomes are termed as episomes. Thus, the correct answer is option D.
Pili are elongated, hollow appendage made of a special protein, pilin and serve in transfer of DNA to other cells and in cell adhesion. Mesosome is an extension of the cell membrane presence in cytoplasm as infolding and serves to increases surface area. The non-essential extra-chromosomal DNA is called as plasmid; it can be present in free or integrated form into the chromosome and are duplicated and passed on to offspring. Though not essential to bacterial growth and metabolism yet they confer protective traits such as antibiotics/drugs/toxins resistance. The plasmids with ability to integrate themselves in cellular chromosomes are termed as episomes. Thus, the correct answer is option D.
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