Biology

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Author:
libradancer
ID:
22263
Filename:
Biology
Updated:
2010-06-06 10:03:49
Tags:
Biology
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Description:
Mr. Durand's Biology part 2+3
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  1. Long, thin strands of DNA
    Chromotin
  2. Short, thick strands of DNA during mitosis
    Chromosome
  3. 1/2 of a duplicated chromosome
    sister chromotid
  4. Place where 2 chromotids join
    Centromere
  5. 90% of a cell cycle
    interphase
  6. process by which duplicated chromosomes divide
    mitosis
  7. Fibers that pull apart chromotids during mitosis and meiosis
    spindle
  8. disease of uncontrolled mitosis
    cancer
  9. Reproductive cell division where chromosome number is halved
    meiosis
  10. Cytoplasm divides in two, after mitosis, two daughter cells result
    Cytokiesis
  11. The process by which all cells come from other cells
    mitosis
  12. why cells divide
    In order to grow, repair damaged cells, reproduce
  13. Where does cell division occur in organisms?
    in the nucleus
  14. Events of cell cycle
    • Interphase- When a cell grows, chomotin doubles, and preperation for mitosis
    • Prophase- duplicated chromosomes shorten+thicken
    • Metaphase- duplicated chromosomes line up
    • Anaphase- duplicated chromosomes are pulled apart
    • Telophase- new daughter cells prepare to split
  15. four feeding levels in energy pyramid
    • producers
    • consumers
    • secondary consumers
    • tertiary consumers
    • fourth consumers
    • Decomposers
  16. Percentage of energy transferred from one trophic level to another
    10%
  17. Photocynthetic equation
    • I
    • V
    • sun
    • CO2+ H2O --> C6H12O6+ O2
    • Glucose
    • Carbohydrate
  18. Where photosynthesis occurs
    Chloroplast
  19. Light reactions
    Charged batteries (ATP)
  20. Dark reactions
    Batteries charge up glucose manufacture

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