Study For Bio Test

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| By KaylaChristine22
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KaylaChristine22
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  • 1/5 Questions

    Cells release signals that travel long distance to affect target cells.  What type of signaling is this?

    • Paracrine Signaling
    • Endocrine Signaling
    • Contact-dependent Signaling
    • Direct Intercellular Signaling
    • Autocrine Signaling
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About This Quiz

Prepare for your Bio Test with this focused quiz on cellular signaling. It covers types like direct intercellular, contact-dependent, autocrine, paracrine, and endocrine signaling, assessing understanding of how cells communicate in different biological contexts.

Study For Bio Test - Quiz

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  • 2. 

    Cells release signals that affect nearby target cells.  What type of signaling is this?

    • Paracrine Signaling

    • Endocrine Signaling

    • Contact-dependent Signaling

    • Direct Intercellular Signaling

    • Autocrine Signaling

    Correct Answer
    A. Paracrine Signaling
    Explanation
    Paracrine signaling is the correct answer because it involves cells releasing signals that affect nearby target cells. In this type of signaling, the signaling molecules are released into the extracellular fluid and act on nearby cells, but do not travel through the bloodstream to reach their target cells. This allows for local communication and coordination between cells in a specific area or tissue.

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  • 3. 

    Membrane-bound signals bind to receptors on adjacent cells.  What type of signaling is this?

    • Paracrine Signaling

    • Endocrine Signaling

    • Contact-dependent Signaling

    • Direct Itercellular Signaling

    • Autocrine Signaling

    Correct Answer
    A. Contact-dependent Signaling
    Explanation
    Contact-dependent signaling is the correct answer because it involves membrane-bound signals that bind to receptors on adjacent cells. In this type of signaling, the signaling molecule remains attached to the cell membrane of the signaling cell and interacts directly with the receptor on the target cell, which is in close physical contact. This type of signaling is important for cell-cell communication during development, immune responses, and other cellular processes.

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  • 4. 

    Signals pass through a gap junction from the cytosol of one cell to adjacent cells.  What type of signaling is this?

    • Paracrine Signaling

    • Endocrine Signaling

    • Contact-dependent Signaling

    • Direct Intercellular Signaling

    • Autocrine Signaling

    Correct Answer
    A. Direct Intercellular Signaling
    Explanation
    Direct intercellular signaling refers to the transmission of signals directly from one cell to adjacent cells through gap junctions. Gap junctions are specialized protein channels that allow for the direct exchange of ions, small molecules, and signaling molecules between cells. This type of signaling is important for coordinating cellular activities and communication between neighboring cells. Unlike paracrine or endocrine signaling, which involve the release of signaling molecules into extracellular spaces or the bloodstream, direct intercellular signaling occurs through direct physical contact between cells.

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  • 5. 

    Cells release signals that affect themselves and nearby target cells.  What type of signaling is this?

    • Paracrine Signaling

    • Endocrine Signaling

    • Contact-dependent Signaling

    • Direct Intercellular Signaling

    • Autocrine Signaling

    Correct Answer
    A. Autocrine Signaling
    Explanation
    Autocrine signaling is the correct answer because it refers to the type of signaling where cells release signals that affect themselves and nearby target cells. In this type of signaling, the signaling molecule binds to receptors on the same cell that released it, leading to a response within that cell or nearby cells. This allows cells to communicate and regulate their own behavior in a self-regulatory manner.

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Quiz Review Timeline (Updated): Apr 28, 2024 +

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  • Current Version
  • Apr 28, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 02, 2010
    Quiz Created by
    KaylaChristine22

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