Cell Structure Definitions

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  1. A scientist that study cells

    2.

    Missing Word
    Correct Answer:
    cytologist

    Reference

    Biology: A self-teaching guide

  2. A microscope that magnifies objects from 4x to 80x to investigate much larger objects, also called dissecting microscopes

    3.

    Missing Word
    Correct Answer:
    stereomicroscopes

    Reference

    Biology: A self-teaching guide

  3. A microscope which utilizes a beam of electrons that travel in shorter wavelengths than those of photons in visible light

    4.

    Missing Word
    Correct Answer:
    transmission electron microscope

    Explanation

    These electrons are passed through a thinly sliced specimen within a vacuum to prevent any electrons from being deflected and absorbed by the gas molecules in the air.  Then the electrons are focused with electromagnets on a photographic plate, producing an image that is considerably better than that obtained with a light microscope.

    Reference

    Biology: A self-teaching guide

  4. A microscope which focuses electrons that bounce off the specimen

    5.

    Missing Word
    Correct Answer:
    scanning electron microscope

    Explanation

    Then in the 1950s the scanning electron microscope (SEM) was invented, which focuses electrons that bounce off the specimen. Since the SEM has less resolving power than the transmission electron microscope, it doesn’t require a vacuum and allows researchers to view some smaller organisms alive

    Reference

    Biology: A self-teaching guide

  5. A structural layer surrounding some types of cells, just outside the cell membrane

    6.

    Missing Word
    Correct Answer:
    cell wall

    Reference

    Wikipedia

  6. Organisms that carry out all necessary life-supporting functions within one cell without the help of other cells.

    7.

    Missing Word
    Correct Answer:
    unicellular organisms

    Explanation

    Bacteria and protozoa are examples of such organisms

    Reference

    Biology: A self-teaching guide

  7. An organism that consists of more than one cell

    8.

    Missing Word
    Correct Answer:
    multicellular organism

    Explanation

    All species of animals, land plants and most fungi are multicellular, as are many algae.

    Reference

    Wikipedia

  8. Everything within cell plasma membrane, except nucleus is called

    9.

    Missing Word
    Correct Answer:
    cytoplasm

    Reference

    Biology: A self-teaching guide

  9. Inside cell membrane, a homogeneous mixture of two or more components in which the particles of the different substances are so small that they cannot be distinguished

    10.

    Missing Word
    Correct Answer:
    solution

    Reference

    Biology: A self-teaching guide

  10. Inside the cell, usually contains particles that are too small to be seen but are large enough not to form a true solution

    11.

    Missing Word
    Correct Answer:
    colloid

    Reference

    Biology: A self-teaching guide

  11. In cell, the condition of constant internal environment

    12.

    Correct Answer:
    chemical homeostasis

    Reference

    Biology: A self-teaching guide



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