Science List Today

Peter G.
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Full list of words from this list:

words only definitions & notes
  1. molecule
    the simplest structural unit of an element or compound
    Organelles include mitochondria, which are responsible for the energy transactions necessary for cell survival; lysosomes, which digest unwanted materials within the cell; and the endoplasmic reticulum and the Golgi apparatus, which play important roles in the internal organization of the cell by synthesizing selected molecules and then processing, sorting, and directing them to their proper locations.
  2. cell
    the basic structural and functional unit of all organisms
    A cell is enclosed by a plasma membrane, which forms a selective barrier that allows nutrients to enter and waste products to leave.
  3. nutrient
    any substance that can be metabolized to give energy
    A cell is enclosed by a plasma membrane, which forms a selective barrier that allows nutrients to enter and waste products to leave.
  4. selective
    characterized by very careful or fastidious choice
    A cell is enclosed by a plasma membrane, which forms a selective barrier that allows nutrients to enter and waste products to leave.
  5. contain
    hold or have within
    One major organelle, the nucleus, contains the genetic information necessary for cell growth and reproduction.
  6. processing
    preparing or putting through a prescribed procedure
    Organelles include mitochondria, which are responsible for the energy transactions necessary for cell survival; lysosomes, which digest unwanted materials within the cell; and the endoplasmic reticulum and the Golgi apparatus, which play important roles in the internal organization of the cell by synthesizing selected molecules and then processing, sorting, and directing them to their proper locations.
  7. framework
    the underlying structure
    The cytosol contains an organized framework of fibrous molecules that constitute the cytoskeleton, which gives a cell its shape, enables organelles to move within the cell, and provides a mechanism by which the cell itself can move.
  8. digest
    convert food into absorbable substances
    Organelles include mitochondria, which are responsible for the energy transactions necessary for cell survival; lysosomes, which digest unwanted materials within the cell; and the endoplasmic reticulum and the Golgi apparatus, which play important roles in the internal organization of the cell by synthesizing selected molecules and then processing, sorting, and directing them to their proper locations.
  9. surround
    extend on all sides of simultaneously; encircle
    The interior of the cell is organized into many specialized compartments, or organelles, each surrounded by a separate membrane.
  10. survival
    the state of remaining alive
    Organelles include mitochondria, which are responsible for the energy transactions necessary for cell survival; lysosomes, which digest unwanted materials within the cell; and the endoplasmic reticulum and the Golgi apparatus, which play important roles in the internal organization of the cell by synthesizing selected molecules and then processing, sorting, and directing them to their proper locations.
  11. mechanism
    device consisting of a piece of machinery
    The cytosol contains an organized framework of fibrous molecules that constitute the cytoskeleton, which gives a cell its shape, enables organelles to move within the cell, and provides a mechanism by which the cell itself can move.
  12. involve
    contain as a part
    The cytosol also contains more than 10,000 different kinds of molecules that are involved in cellular biosynthesis, the process of making large biological molecules from small ones.
  13. convert
    change the nature, purpose, or function of something
    In addition, plant cells contain chloroplasts, which are responsible for photosynthesis, whereby the energy of sunlight is used to convert molecules of carbon dioxide (CO2) and water (H2O) into carbohydrates.
  14. constitute
    form or compose
    The cytosol contains an organized framework of fibrous molecules that constitute the cytoskeleton, which gives a cell its shape, enables organelles to move within the cell, and provides a mechanism by which the cell itself can move.
  15. barrier
    a structure or object that impedes free movement
    A cell is enclosed by a plasma membrane, which forms a selective barrier that allows nutrients to enter and waste products to leave.
  16. responsible
    worthy of or requiring trust; held accountable
    Organelles include mitochondria, which are responsible for the energy transactions necessary for cell survival; lysosomes, which digest unwanted materials within the cell; and the endoplasmic reticulum and the Golgi apparatus, which play important roles in the internal organization of the cell by synthesizing selected molecules and then processing, sorting, and directing them to their proper locations.
  17. location
    the act of putting something in a certain place
    Organelles include mitochondria, which are responsible for the energy transactions necessary for cell survival; lysosomes, which digest unwanted materials within the cell; and the endoplasmic reticulum and the Golgi apparatus, which play important roles in the internal organization of the cell by synthesizing selected molecules and then processing, sorting, and directing them to their proper locations.
  18. energy
    forceful exertion
    Organelles include mitochondria, which are responsible for the energy transactions necessary for cell survival; lysosomes, which digest unwanted materials within the cell; and the endoplasmic reticulum and the Golgi apparatus, which play important roles in the internal organization of the cell by synthesizing selected molecules and then processing, sorting, and directing them to their proper locations.
  19. select
    pick out or choose from a number of alternatives
    Organelles include mitochondria, which are responsible for the energy transactions necessary for cell survival; lysosomes, which digest unwanted materials within the cell; and the endoplasmic reticulum and the Golgi apparatus, which play important roles in the internal organization of the cell by synthesizing selected molecules and then processing, sorting, and directing them to their proper locations.
  20. interior
    inside and toward a center
    The interior of the cell is organized into many specialized compartments, or organelles, each surrounded by a separate membrane.
  21. enable
    provide the means to perform some task
    The cytosol contains an organized framework of fibrous molecules that constitute the cytoskeleton, which gives a cell its shape, enables organelles to move within the cell, and provides a mechanism by which the cell itself can move.
  22. internal
    located inward
    Organelles include mitochondria, which are responsible for the energy transactions necessary for cell survival; lysosomes, which digest unwanted materials within the cell; and the endoplasmic reticulum and the Golgi apparatus, which play important roles in the internal organization of the cell by synthesizing selected molecules and then processing, sorting, and directing them to their proper locations.
  23. process
    a particular course of action intended to achieve a result
    Organelles include mitochondria, which are responsible for the energy transactions necessary for cell survival; lysosomes, which digest unwanted materials within the cell; and the endoplasmic reticulum and the Golgi apparatus, which play important roles in the internal organization of the cell by synthesizing selected molecules and then processing, sorting, and directing them to their proper locations.
  24. role
    the actions and activities assigned to a person or group
    Organelles include mitochondria, which are responsible for the energy transactions necessary for cell survival; lysosomes, which digest unwanted materials within the cell; and the endoplasmic reticulum and the Golgi apparatus, which play important roles in the internal organization of the cell by synthesizing selected molecules and then processing, sorting, and directing them to their proper locations.
  25. include
    have as a part; be made up out of
    Organelles include mitochondria, which are responsible for the energy transactions necessary for cell survival; lysosomes, which digest unwanted materials within the cell; and the endoplasmic reticulum and the Golgi apparatus, which play important roles in the internal organization of the cell by synthesizing selected molecules and then processing, sorting, and directing them to their proper locations.
  26. shape
    a perceptual structure
    The cytosol contains an organized framework of fibrous molecules that constitute the cytoskeleton, which gives a cell its shape, enables organelles to move within the cell, and provides a mechanism by which the cell itself can move.
  27. involved
    connected by participation or association or use
    The cytosol also contains more than 10,000 different kinds of molecules that are involved in cellular biosynthesis, the process of making large biological molecules from small ones.
  28. surrounded
    confined on all sides
    The interior of the cell is organized into many specialized compartments, or organelles, each surrounded by a separate membrane.
  29. provide
    give something useful or necessary to
    The cytosol contains an organized framework of fibrous molecules that constitute the cytoskeleton, which gives a cell its shape, enables organelles to move within the cell, and provides a mechanism by which the cell itself can move.
  30. separate
    standing apart; not attached to or supported by anything
    The interior of the cell is organized into many specialized compartments, or organelles, each surrounded by a separate membrane.
  31. major
    greater in scope or effect
    One major organelle, the nucleus, contains the genetic information necessary for cell growth and reproduction.
  32. content
    satisfied or showing satisfaction with things as they are
    Each cell contains only one nucleus, whereas other types of organelles are present in multiple copies in the cellular contents, or cytoplasm.
  33. present
    happening or existing now
    Each cell contains only one nucleus, whereas other types of organelles are present in multiple copies in the cellular contents, or cytoplasm.
Created on Wed Dec 11 15:24:26 EST 2013 (updated Wed Dec 11 15:27:11 EST 2013)

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