Class on June 14th

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cutieme643
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90490
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Class on June 14th
Updated:
2011-06-13 15:50:01
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Second Bio Exam
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Functions of Membrane Proteins
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  1. How many funtions are there for membrane proteins
    SIX
  2. What are the six functions of membrane proteins
    • A= Attachment to the cytoskel and extracellular matrix
    • S= Signal transduction
    • s
    • o
    • C= Cell to cell recognition
    • I= Intercellular joining
    • a
    • T=transport
    • E=Enzymatic activity
  3. What are the 2 types of proteins?
    Phospholipids and Proteins
  4. Every Cell has WHAT?
    PLASMA MEMBRANES
  5. What are the four types of macromolecules? Ntk just 3
    • LIPIDS
    • CARBOHYDRATES
    • PROTEINS
  6. What is anothe name for the fluid mosaic model?
    Plasma membrane
  7. What is plasma membrane made up of?
    Phospholipid bilayer
  8. Phospholipid is what kind of molcule?
    Ampipathic
  9. What kind of movement do plasmamembranes have?
    Lateral
  10. What reduces membrane fluidity and acts as a "temporary buffer"?
    Cholesterol
  11. What are the pores on a plant cell called?
    PLASMODESMATA AND MADE UP OF CELLULOSE
  12. What is the outer layer of a plant cell ?
    CELL WALL
  13. The nucleus of a cell keeps what out?
    DNA AND RNA
  14. What is transportated through the nucleus pores
    mRNA
  15. What maintains the nucleus shape?
    The nuclear LAMINA
  16. What is synthesized at the NUCLEOLUS?
    rRNA
  17. DNA turned into RNA is called what
    transcription
  18. Where does transcription occur?
    Inside the nucleus
  19. What basically are chromosomes?
    DNA and RNA
  20. What 2 things do ribosomes have?
    Proteins and rRNA complexes
  21. What do ribosomes do?
    Synthesize proteins
  22. When RNA is turned into proteins, this is called?
    Translation
  23. The nucleus has two membranes called?
    Phospholipid bilayer
  24. What are the types of E.R are there?
    Two , Smooth and Rough
  25. What does Rough E.R have and what does it do?
    Rough E.R has ribosomes and does protein synthesis
  26. Rough E.R structure are big or small
    Really, really small
  27. What does the letters E.R mean?
    Endoplasmic Reticulum
  28. What does smooth E.R do?
    Synthesizes secretary proteins which are internalized, glycosylated, and transportated to GOLGI
  29. Smooth E.R has 3 functions:
    • synthesizes: lipids and cholesterol
    • and
    • Our liver has TONS of these cells
  30. Is Golgi attached to the nuclear membrane
    NO
  31. So what is attached to the Nuclear Membrane?
    E.R~
  32. Lysomes are only in animal or plant cells?
    Animal
  33. Lysosomes digestive enzymes break down:
    Food
  34. When lysosomes digest food, this is called:
    PHAGOCYTOSIS
  35. When lysosomes break down damaged organelles, this is called:
    AUTOPHAGY
  36. How do mitochondria produce energy?
    Through cellular respiration
  37. What is ATP?
    Adenosine Tri Phosphate
  38. Mitochondreal DNA is in the:
    MARTRIX
  39. Cellular respiration is also called:
    Glucose breakdown
  40. How many mitochondria do cells have?
    Hundreds or even thousands
  41. In Mitrochondria, the outer layer is smooth or convoluded?
    Smooth
  42. In mitochondria, the inner layer is:
    Folded and Convoluded
  43. The folded membrane of mitochondria is:
    Cristae and is folded
  44. Chloroplasts are in animal or plant cells?
    Plant
  45. Plants cells have pancake stacks called:
    GROMA
  46. Microtubles have microfilaments also known as:
    ACTIN FILAMENTS
  47. Centrosomes are only in Animal or Plant cells and have?
    Animal cells and have CENTROSOMES
  48. Centrosomes are needed to:
    Separate Chromosomes
  49. What do Microtubles separate?
    Chromas during cell division
  50. Actin Filaments provide:
    Muscle Contraction
  51. All microtubles have cell motility called:
    Pseudopodia
  52. When cells divide, the space where they divide is called
    Cleavage Furrow

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