BMS 550 Histology Exam One
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BMS 550 Histology Exam One

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Questions and Answers

What are the two main outcomes of cell differentiation?

  • Different structure and division
  • Different shape and size
  • Different appearance and function (correct)
  • Different color and texture
  • What is the function of the nucleus in a cell?

    Stores the genetic material, coordinates cell activities, and is the molecular machinery of the cell.

    The nucleus is responsible for coordinating all __________ activities.

    cell's

    Eukaryotic cells are unicellular in nature.

    <p>False</p> Signup and view all the answers

    Study Notes

    Cytology 1

    • There are two main types of cells: prokaryotic cells and eukaryotic cells (human cells).
    • Prokaryotic cells are unicellular, have no nucleus, and no organelles.
    • Eukaryotic cells are multicellular, form tissues, have a nucleus, and have organelles.
    • Eukaryotic cells undergo differentiation, which involves the interaction between genes and microenvironment, leading to two main outcomes: different appearance and structure, and functional specialization.

    Nucleus

    • The nucleus is the command center of the cell.
    • It stores the genetic material, coordinates all cell activities (growth, metabolism, protein synthesis, cell division), and has molecular machinery.
    • The nucleus has four components: nuclear envelope, nuclear pores, nucleoplasm, and chromatin.
    • The nuclear envelope has two membranes (inner and outer) and a perinuclear space.
    • Nuclear pores regulate the movement of ions and small molecules between the nucleoplasm and cytoplasm.
    • Nucleoplasm, also known as karyoplasm, is a viscous fluid.
    • Chromatin is made up of DNA, with 46 chromosomes in human cells (22 pairs of autosomes in somatic cells, and 22 autosomes in gametes).

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    Description

    This quiz is for BMS 550 students, covering Histology topics for Exam One in Summer 2022. It includes questions from Slidesmania.com.

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