NURSING EXAM QUESTIONS
MICROBIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When cells communicate with other cells that are directly touching (often through gap channels)
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Juxtacrine
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Autocrine
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Paracrine
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Endocrine
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Explanation:
Detailed explanation-1: -Juxtacrine signalling is a type of cellular communication between contacting cells, for example by means of gap junctions that allow for signalling molecules to pass from cell to cell. This type of interaction can be transitive, allowing distant cells to communicate with each other by successive cellular contacts.
Detailed explanation-2: -Paracrine signaling involves the secretion of specific signaling factors by one cell which are perceived by corresponding receptors on another cell in the vicinity, triggering a response in it9, 10, whereas juxtacrine signaling requires direct contact between cellular components of the two cells involved11, 12.
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