Modern Biology Chapter 4 Vocab

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jadeten2003
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Modern Biology Chapter 4 Vocab
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2014-10-20 00:39:31
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Modern Biology Chapter Vocab
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Modern Biology Chapter 4 Vocab
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  1. one of the two protein filaments in a muscle cell that function in contraction
    actin
  2. a membrane-bound structure that is a basic unit of life
    cell
  3. the lipid bilayer that forms the outer boundary of the cell
    cell membrane
  4. the theory that all living things are made of cells, that cells are the basic units of organisms, and that cells come only from existing cells
    cell theory
  5. a rigid structure that surrounds the cells of plants, fungi, many protists and most bacteria
    cell wall
  6. a plastid containing chlorophyll; the site of photosynthesis
    chloroplast
  7. the DNA and proteins in the nucleus of a nondividing cell
    chromatin
  8. DNA and protein in a coiled, rod-shaped form that occurs during cell division
    chromosome
  9. a short, hairlike organelle that extends from a cell and functions in locomotion or in the movement of substances across the cell surface.
    cilium
  10. a collection of genetically identical cells that live together I a closely connected group
    colonial organism
  11. a fold of the inner membrane of mitochondria
    crista
  12. the region of a cell between the cell membrane and the nucleus
    cytoplasm
  13. a network of long protein strands in the cytosol that helps maintain the shape an size of a eukaryotic cell
    cytoskeleton
  14. the gelatinlike aqueous fluid that bathes the organelles on the inside of the cell membrane
    cytosol
  15. a system of membranous tubules and sacs in eukaryotic cells that functions as a path along which molecules move from one part of the cell to another
    endoplasmic reticulum
  16. a cell that contains a nucleus and membrane-bound organelles
    eukaryote
  17. a hairlike structure made up of microtubules that function in locomotion
    flagellum
  18. a model of cell membrane structure representing the dynamic nature of membrane lipids and proteins
    fluid mosaic model
  19. a system of membranes in eukaryotic cells that modifies proteins for export by the cell
    Golgi apparatus
  20. a protein imbedded in the bilayer of the cell membrane
    integral protein
  21. an organelle containing digestive enzymes, existing primarily in animal cells
    lysosome
  22. a polymer chain of the protein actin; the smallest strand in the cytoskeleton
    microfilament
  23. a hollow tube of protein that constitutes that largest strand in the cytoskeleton
    microtubule
  24. the organelle that is the site of aerobic respiration in eukaryotic cells
    mitochondrion
  25. a double membrane that surrounds the nucleus of a eukaryotic cell
    nuclear envelope
  26. the nuclear skeleton, a shape-maintaining protein
    nuclear matrix
  27. a small hole in the nuclear envelope through which substances pass between the nucleus and the cytoplasm
    nuclear pore
  28. the structure in which ribosomes are synthesized and partially assembled; found in most nuclei
    nucleolus
  29. in a eukaryotic cell, the organelle that contains most of the DNA and directs the cell's activities
    nucleus
  30. several types of body tissues that together perform a function
    organ
  31. one of several formed bodies with a specialized function that is suspended in the cytoplasm and found in eukaryotic cells
    organelle
  32. a group of organs that interact to perform a set of related tasks
    organ system
  33. a protein attached to the interior or exterior surface of the cell membrane
    peripheral protein
  34. an organelle of plant cells that contains starch, fats or pigments
    plastid
  35. a unicellular organism that lacks a nucleus and membrane-bound organelles
    prokaryote
  36. a single-celled, eukaryotic protest that is able to move independently
    protozoan
  37. an organelle that functions in the synthesis of proteins
    ribosome
  38. the portion of the endoplasmic reticulum that contains attached ribosomes
    rough endoplasmic reticulum
  39. a membrane that keeps out some molecules but allows others to pass through
    selectively permeable membrane
  40. the portion of the endoplasmic reticulum that lacks attached ribosomes
    smooth endoplasmic reticulum
  41. one of the microtubules that extend across a dividing eukaryotic cell; assists in the movement of chromsomes
    spindle fiber
  42. a flattened, membranous sac inside a chloroplast; contains most of the components involved in the light reactions of photosynthesis
    thylakoid
  43. the most multicellular organisms, a group of similar cells that carry out a common function
    tissue
  44. a fluid-filled organelle that stores enzymes or metabolic wastes in a plant cell
    vacuole

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