Study For Bio Test

Approved & Edited by ProProfs Editorial Team
The editorial team at ProProfs Quizzes consists of a select group of subject experts, trivia writers, and quiz masters who have authored over 10,000 quizzes taken by more than 100 million users. This team includes our in-house seasoned quiz moderators and subject matter experts. Our editorial experts, spread across the world, are rigorously trained using our comprehensive guidelines to ensure that you receive the highest quality quizzes.
Learn about Our Editorial Process
| By KaylaChristine22
K
KaylaChristine22
Community Contributor
Quizzes Created: 1 | Total Attempts: 141
Questions: 5 | Attempts: 141

SettingsSettingsSettings
Study For Bio Test - Quiz


help study for bio exam


Questions and Answers
  • 1. 

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

    • A.

      Paracrine Signaling

    • B.

      Endocrine Signaling

    • C.

      Contact-dependent Signaling

    • D.

      Direct Intercellular Signaling

    • E.

      Autocrine Signaling

    Correct Answer
    D. 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.

    Rate this question:

  • 2. 

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

    • A.

      Paracrine Signaling

    • B.

      Endocrine Signaling

    • C.

      Contact-dependent Signaling

    • D.

      Direct Itercellular Signaling

    • E.

      Autocrine Signaling

    Correct Answer
    C. 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.

    Rate this question:

  • 3. 

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

    • A.

      Paracrine Signaling

    • B.

      Endocrine Signaling

    • C.

      Contact-dependent Signaling

    • D.

      Direct Intercellular Signaling

    • E.

      Autocrine Signaling

    Correct Answer
    E. 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.

    Rate this question:

  • 4. 

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

    • A.

      Paracrine Signaling

    • B.

      Endocrine Signaling

    • C.

      Contact-dependent Signaling

    • D.

      Direct Intercellular Signaling

    • E.

      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.

    Rate this question:

  • 5. 

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

    • A.

      Paracrine Signaling

    • B.

      Endocrine Signaling

    • C.

      Contact-dependent Signaling

    • D.

      Direct Intercellular Signaling

    • E.

      Autocrine Signaling

    Correct Answer
    B. Endocrine Signaling
    Explanation
    Endocrine signaling is the correct answer because it involves cells releasing signals that travel long distances through the bloodstream to affect target cells. This type of signaling is characteristic of hormones, which are produced by endocrine glands and transported through the circulatory system to target cells located far away from the source of the signal. In contrast, paracrine signaling involves signals that act on nearby cells, contact-dependent signaling requires direct cell-to-cell contact, direct intercellular signaling involves signals passing through gap junctions between adjacent cells, and autocrine signaling involves cells responding to signals they themselves produce.

    Rate this question:

Quiz Review Timeline +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Apr 28, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 02, 2010
    Quiz Created by
    KaylaChristine22
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.