biology vocab 1

  1. organ
    a group of tissues working together
  2. tissue
    a group of similar cells that perform a specific function
  3. DNA
    genetic information
  4. cell wall
    in plant cells, cover the membrane and protect the plant cell from exploding.
  5. cytoplasm
    gell like substance in the cell that supports the organelles
  6. mitochondrion
    makes energy for the cell
  7. organ systems               
    a group of organs working together
  8. cilia
    hairlike vibrating structure. Cilia occur in large numbers on the surface of certain cells
  9. cell membrane     
    outter layer of a cell, protects the cell and controls what goes in and out of it
  10. chloroplast
    in plant cells; process of photosynthesis that plants get energy from by water, sun and carbon dioxide to form glucose
  11. flagellum
    the tail on a bacteria cell that helps the bacteria move
  12. vacuole
    water sacks that contain the water contained in the cell
  13. lysosomes
    clean and digest old, unneeded substances in a cell
  14. Cell Theory    
    • 1.All living organisms are composed of one or more cells.
    • 2.The cell is the basic unit of structure, function, and organization in all organisms.
    • 3.All cells come from pre-existing, living cells
  15. chromosomes
    a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.

  16. organelles
    subunits in a cell
  17. centriole
    help chromosomes move during cell division

  18. prokaryote                                             
    • unicellular
    • lack membrane bound organelles
  19. Golgi apparatus
    secretes and packages proteins for transportation
  20. virus
    A virus is a small infectious agent that can replicate only inside the living cells of organisms
  21. eukaryote
    • uni or multicellular
    • has a true nucleus
    • membrane bound organelles

  22. nucleus
    • contains DNA
    • the brain of the cell
  23. nucleolus
    in the nucleus of the cell
  24. ribosomes
    transports proteins
  25. capsid
    protects the virus
  26. cell
    microscopic unit of life
  27. lytic
    type of virus that destructs a cell
  28. lysogenic
    type of virus that doesn't kill the cell

  29. plasma membrane
    a microscopic membrane of lipids and proteins that forms the external boundary of the cytoplasm of a cell or encloses a vacuole, and that regulates the passage of molecules in and out of the cytoplasm
  30. stoma
    the slit pores in a leaf
  31. guard cells
    each of a pair of curved cells that surround a stoma, becoming larger or smaller according to the pressure within the cells.

  32. rough and smooth endoplasmic reticulum
    • rough- aids transportation of proteins made by ribosomes
    • smooth-  aids transportation made by ribosomes; responsible for lipids synthesis and processes a variety of metabolic processes such as drug detoxification

  33. Six Kingdoms of Life
    • I. Archaebacteria
    • II. Eubacteria
    • III. Protista
    • IV. Fungi
    • V. Plantae
    • VI.Animalia
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biology vocab 1