BIO 24 - Chapter 3

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daytron
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73812
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BIO 24 - Chapter 3
Updated:
2011-03-19 06:10:35
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BIO Chapter
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Cells
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  1. The cell organelles most directly associated with cell division are the?
    Centrioles - help organize spindle fibers during cell divisions
  2. The hereditary material of cells is?
    DNA
  3. The DNA is found in the ______ of the cell
    Chromosomes
  4. The major structural parts of a cell are the?
    • 1) Cell Membrane
    • 2) Nucleus
    • 3) Cytoplasm
  5. The cell organelle most directly associated with the production of cellular proteins is?
    Ribosomes
  6. The cellular transport mechanism that depends upon transporters or carrier enyzmes in the cell membrane is?
    Facilitated diffusion
  7. The cellular transport mechanism that deponds upon blood pressure is?
    Filtration
  8. A water-salt solution with the same salt concentration as in cells is called?
    Isotonic
  9. Mitosis produces cells that have?
    Diploid number chromosomes, 46 for people
  10. Meiosis produces cells that have...
    Haploid number of chromosomes, 23 for people
  11. The organic molecules in the cell membrane that form pores and receptor sites for hormones are?
    Protein
  12. Meiosis is necessary to produce
    Egg or sperm cells
  13. Mitosis is necessary for..
    Growth and repair of tissues
  14. The function of cilia is to...?
    Sweep material across a surface
  15. The nucleus of a cell does what?
    Regulates the activities of a cell by means of genetic material it contains.
  16. The function of the Golgi apparatus of a cell is to synthesize what?
    Carbohydrates
  17. A gene is the genetic code for one what?
    Protein
  18. Human cells that usually do not undergo mitosis in an adult are?
    Nerve cells and Muscle cells
  19. The cell organelle most directly associated with the destruction of damaged cellular protein is the?
    Proteasome
  20. what is the function of the microvilli of a cell?
    Increase the surface area of the cell membrane
  21. In the body, the process of diffusion is responsible for the movement of what?
    Oxygen and Co2
  22. A cell that has the potential to develop into several different kinds of cells is a?
    Stem cell
  23. The cells lining the small intestine absorb glucose and amino acids by the process of?
    Active transport
  24. Organelles in which cell respiration takes place in is?
    Mitochondria
  25. Intracellular structures with specific roles in cellular functions are called?
    Organelles
  26. Meiosis is a cell division that results in the formation of _______ that produce egg and sprem cells...
    Gametes
  27. Movement of molecules from an area of greater concentration to an area of lesser concentration is called?
    Diffusion
  28. The diffusion of water is called?
    Osmosis
  29. Transporters (carrier enzymes) that are part of the cell membrane permit cells to take in materials that would not diffuse by themselves is called what?
    Facilitated diffusion
  30. A cell uses ATP to move substances from an area of lesser concentration to an area of greater concentration is called?
    Active transport
  31. Pressure forces water and dissolved materials through a membrane from an area of higher pressure to an area of lower pressure is called?
    Filtration
  32. A stationary cell engulfs small molecules is called?
    Pinocytosis
  33. Moving cell engulfs something is called?
    Phagocytosis

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