Chapter one and two

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Tierany
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221961
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Chapter one and two
Updated:
2013-06-01 23:08:46
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NEMSA
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Cells
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  1. What is the cell theory?
    • Building block of all plants and animals
    • it is the smallest functioning unit of life
    • exist only through divison of pre-exsiting cells
    • maintain own homeostasis
  2. what is the fluid that surrounds the cell on the outside?
    Extracelluar Fluid
  3. how thick is the cell membrane?
    6-10nm thick
  4. What is a selective barrier and isolates the cytoplasm from extracellular fluid?
    phospholipid bilayer
  5. What forms complex molecules with proteins and lipids? It was serves as a lubricant, adhesive, and identifiers for the cell?
    Membrane Carbohydrates
  6. Which movement requires ATP and which movement doesn't?
    • Passive-does not require ATP
    • Active-Requires ATP
  7. What is movement of solute from a high concentration to a low concentration?
    Diffusion
  8. What represents the difference between high and low concentration?
    Concentration Gradient
  9. What is a passive process where water is moved from a higher solute concentration?
    Osmosis
  10. If electrons are presents, will atoms read with other atoms?
    No they won't
  11. Atoms can bond together by sharing, gathering, or losing electrons through chemical reactions, making this a?
    Chemical bond
  12. Sharing of one pair of electrons is considered a what bond?
    single covalent bond
  13. Sharing of two pairs of electrons is considered to be what kind of bond?
    double covalent bond
  14. Which bond will bond with anything, too weak to create molecules?
    Hydrogen bonds
  15. What are the three types of chemical reactions?
    Dehydration, synthesis, exchange
  16. What type of chemical reaction breaks molecules into small parts? AB-A+B
    Decompositon Reaction
  17. Enzymes belong to a class of what?
    Catalyst
  18. If someone has a pH balance higher than 7 this is considered to be what?
    Basic-alkaline
  19. If someone has a pH balance lower than 7 this is considered to be what?
    Acidic
  20. Reactions that release energy are?
    Exergonic
  21. Reactions that absorb energy are?
    Endergonic
  22. What organic compound is made up of carbon, hydrogen, oxygen, and has a ratio of 1:2:1?
    Carbohydrates
  23. Liver and muscle store _____ and when needed it is broken into glucose.
    Glycogen
  24. When not needed liver and muscle tissue abosorb glycogen to make a _____.
    Glycogen reserve
  25. Disaccharides and polysaccharides are examples of what?
    Carbohydrates
  26. Most lipids are _____in water?
    Insoluable
  27. What is the most common steroid?
    Cholestrol
  28. _____ is composed of carbon, hydrogen, oxygen, and nitrogen. It is made up of chains of amino acids.
    Proteins
  29. Nucleic acids are large organic molecules that store and process information, what is the two types of nucleic acids?
    • DNA-deoxyribsonucleic acid
    • RNA-ribonucleic acid
  30. The most important high-energy compound of the body is?
    ATP-adenosine triphosphate
  31. Which of the nucleic acids drives the manufacture of proteins?
    RNA
  32. What are negatively charged particles in an atom called?
    Electrons
  33. Which type of chemical bond results when electrons are "shared"
    Covalent Bond
  34. What type of reaction is "catabolism"
    Decomposition reaction
  35. What do enzymes do?
    Speed up a chemical reaction without the harsh affects produced by activation energy. They also belong to a class called catalyst.
  36. What is the name for a chain of simple sugars?
    Monosaccharides
  37. The number of protons in an atom is considered to be its what?
    Atomic number
  38. What is the average total number of protons and neutrons of a particular element?
    Atomic weight or Atomic mass

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