A&P Lab Midterm:Cells; Mitosis; Osmosis; Diffusion

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  1. Identify the plasma membrane and cytoplasm.
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  2. Identify the nucleus and chromatin
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  3. Identify a nucleolus, nuclear pore, nuclear plasma and nuclear envelope 
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  4. Identify a ribosome, vacuole, lysosome, and centriole
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  5. Identify the rough and smooth endoplasmic reticulum.
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  6. Identify the mitochondria, pinocytic vesicle, and golgi apparatus
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    Just a different model
  8. Identify the stage of mitosis
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    Interphase
  9. Identify the stage of mitosis
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    Telophase
  10. Identify the stage of mitosis
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    Metaphase
  11. Identify the stage of mitosis
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    Late prophase
  12. Identify the stage of mitosis
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    Early Prophase
  13. Identify the stage of mitosis
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    Anaphase
  14. Identify the stage of mitosis
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    Late anaphase ???
  15. What is the function of ribosomes?
    Sites for protein synthesis
  16. What is the function of Cytoplasma?
    Median for all cell organelles
  17. What is the function of the nucleus?
    Contains the genetic material of the cell.
  18. What is the function of a nuclear pore?
    Permit easy passage of protein and RNA molecules.
  19. What is the function of nuclear plasma?
    Median for the nucleus
  20. What is the function of the nuclear envelope?
    Protects the cell, regulates imports and exports to the nucleus.
  21. What is the function of a vacuole, lysosome, and centriole?
    • Vacuole: hold materials and wastes. It also functions to maintain the proper pressure within the plant cells to provide structure and support for the growing plant.
    • Lysosome: to digest worn-out cell organelles and foreign substances that enter the body
    • Centriole: direct the formation of the mitotic spindle during cell division
  22. What is the function the nucleolus?
    Assemble sites for ribosomal particles
  23. What is the function of chromatin?
    Contains genetic information
  24. What is the function of the rough and smooth endoplasmic reticulum?
    • Rough ER provides  an area for storage and transport of protein made on the ribosomes to other cell area
    • Smooth ER does not have any function in protein synthesis rather it is a site for steriod and lipid synthesis, lipid metabolism, and drug detox.
  25. What is the function of the mitochondria?
    The power houses of the cell: produce ATP
  26. What is the function of the pinocytic vesicle?
    aids in transportation as a cell's plasma membrane absorbs molecules from outside
  27. What is the function of the Golgi apparatus?
    • Packages proteins or other substances for export from the cell
    • Packaging lysosomal enzymes
  28. What happens during interphase?
    Nothing but normal metabolic activities and grows
  29. What happens during metaphase?
    The chromosomes  cluster at the middle of the cell, with their centromeres precisely aligned at the equator of the spindle. They form the metaphase plate
  30. What happens during early prophase?
    • Chromatin condense into chromosomes 
    • Centrosomes; acting as focal points, form the mitotic spindle
    • Duplicated chromosomes appear
  31. What happens during late prophase?
    • Nuclear envelope breaks
    • Spindle poles start pulling opposite to each other.
    • Start pushing chromosomes to center
  32. What happens during anaphase?
  33. What happens during telophase?
    • Identical sets of chromosomes at the opposite poles of the cell uncoil and resume thier thread-like chromatin form
    • New nuclear envelopes start to develop. nucleus starts to redevelop
    • Mitosis ends.
  34. When does cytokinesis begin?
    It begins during the late anaphase and continues through and beyond telophase.
  35. What is cytokinesis?
    As a rule, as mitosis draws to a close, cytokinesis completes the division of the cell into two identical daughter cells. Cytokinesis occurs as a contractile ring of actin micro-filaments form the cleavage furrow and pinches the cell apart.
  36. What is osmosis?
    Water's movement from a region of higher concentration to a lower concentration.

    Water follows the salt
  37. What is diffusion?
    The movement of molecules from a region of their higher concentration to a region of their lower concentration.
  38. Describe an isotonic solution.
    Same contraction inside the membrane and outside.
  39. Describe a hypertonic solution.
    There is a higher concentration within a cell. Making everything rush outside the cell to a lower concentration. Resulting in a bursting of the plasma membrane
  40. Describe a hypotonic solution.
    There is a lower concentration within a cell. Making everything rush inside the cell to a lower concentration. Resulting in a swollen cell.
  41. What is the difference between passive and active transport?
    • In passive processes, concentration or pressure difference drive the movement. 
    • In active processes, the cell provides energy(ATP) to power the transport process.
  42. What is lyse?
    To break up
  43. What is Crenation?
    Crinkling process. "Shrinking"

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Author:
fjn900
ID:
324177
Filename:
A&P Lab Midterm:Cells; Mitosis; Osmosis; Diffusion
Updated:
2016-10-08 04:31:17
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Based on the study guide
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