CELL STRUCTURES AND FUNCTION
CELL ORGANELLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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movement
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attach cells to structures
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turns fatty acids into fuel
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stores DNA
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Detailed explanation-1: -Pili can act as receptors for bacteriophage, facilitate DNA uptake and transfer (conjugation), and, in at least type IV pili, function in cellular motility. The primary function of most pili, however, is to act as scaffolding for the presentation of specific adhesive moieties.
Detailed explanation-2: -Pili are short filaments on the surface of archaea cells that allow neighboring cells to adhere to one another. Pili allow cells to share genetic information through a process called DNA transfer or conjugation.
Detailed explanation-3: -2-Pilus attaches to recipient cell, brings the two cells together. 3-The mobile plasmid is nicked and a single strand of DNA is then transferred to the recipient cell. 4-Both cells recircularize their plasmids, synthesize second strands, and reproduce pili; both cells are now viable donors.
Detailed explanation-4: -One class of pili, known as type IV pili, not only allow for attachment but also enable a twitching motility. They are located at the poles of bacilli and allow for a gliding motility along a solid surface such as a host cell.