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Human Biology, 7/e
Dr. Sylvia S. Mader
Cell Structure and Function

Chapter Outline


3.1 Cell Size

  • The amount of detail microscopes allow us to see varies from one type instrument to another. 42

    3.2 Cellular Organization

  • A cell is highly organized and contains organelles that carry out specific functions. 44
  • The plasma membrane regulates the entrance and exit of molecules and ions into and out of the cell. 46
  • The nucleus, a centrally located organelle, controls the metabolic functioning and structural characteristics of the cell. 49
  • A system of membranous canals and vesicles works to produce, store, modify, transport, and digest macromolecules. 50
  • Mitochondria are organelles concerned with the conversion of glucose energy into ATP molecules. 52
  • The cell has a cytoskeleton composed of microtubules and filaments; the cytoskeleton gives the cell a shape and allows it and its organelles to move. 53

    3.3 Cellular Metabolism

  • The cytoplasm contains metabolic pathways, each a series of reactions controlled by _enzymes. 54








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