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Anatomy & Physiology: Homeostasis, Atomic Structure, and Chemical Bonds

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이 집합의 용어 (10)

  • What are the elements of a homeostatic control mechanism?

    Receptor detects change, control center processes information, and effector responds to restore balance.

  • What is negative feedback in homeostasis?

    A response that reverses a change to maintain stability, such as body temperature regulation.

  • What is positive feedback in homeostasis?

    A response that amplifies a change, like blood clotting or childbirth contractions.

  • What are the basic sub-atomic particles of an atom?

    Protons (positive charge), neutrons (neutral), and electrons (negative charge).

  • What is the role of electron shells in atomic structure?

    Electron shells hold electrons at different energy levels around the nucleus.

  • What defines an ion?

    An atom or molecule with a net electric charge due to loss or gain of electrons.

  • What is an isotope?

    Atoms of the same element with different numbers of neutrons.

  • What is a covalent bond?

    A chemical bond where atoms share one or more pairs of electrons.

  • What is an ionic bond?

    A chemical bond formed by the transfer of electrons from one atom to another, creating charged ions.

  • What is a hydrogen bond?

    A weak attraction between a hydrogen atom in one molecule and an electronegative atom in another.