BIO UNIT 2 Section 1

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drummerboy424
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238246
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BIO UNIT 2 Section 1
Updated:
2013-10-14 21:46:46
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BIO UNIT
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BIO UNIT 2
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  1. What does a Phospholipid contain.
    • Phosphate, glycerol and is polar (Hydrophilic)Head
    • Fatty acid tail (Hydrophobic) tail
  2. What makes has regions that are hydrophilic and others hydrophobic and makes up the cell membrane.
    Phospholipids.
  3. O2, CO2, & N2 are ____ permeability in the cellular membrane.
    High
  4. Na+, Cl-, & K+ have ___ permeability in the cellular membrane.
    No
  5. H2O & Glycerol are _____ permeable in the cellular membrane.
    Slightly
  6. ______ of fatty acid tails lowers permeability in the cellular membrane.
    Saturation
  7. _____ in cell membranes lowers fluidity
    Cholesterol
  8. ______ lower fluidity w/ reduced temp due to pack of fatty acid tails.
    Temperature.
  9. _______ tails increase permeabilty
    Unsaturated
  10. _____ is when molecules tend to move spontaneously from high concentration to low concentration.
    Defusion
  11. ______ is the diffusion of water molecules.
    Osmosis
  12. When there is A LOT of a solute around a cell the cell is in a ______ _______ solution and will _____
    Hyper Tonic, Shrivel
  13. When there is TO LITTLE of a solute around a cell the cell is in a ______ _______ solution and will _____
    Hypo Tonic, Burst
  14. When there is A EQUAL amount of a solute around a cell the cell is in a ______ _______ solution and will _____
    Iso Tonic, be ok
  15. What are the 4 components of the cell membrane?
    • Phospholipids
    • Protein
    • Alegosacyrides
    • Cholesterol
  16. ___ help large molecules and charged ions move through the cell membrane
    Proteins
  17. What 2 proteins help with Facilitated Diffusion
    • Carrier Proteins¬†
    • Channel Proteins
  18. ____ _____ is the movement of molecules up/ against concentration gradient (low to high) that always requires ATP & the help of a protein.
    Active Transport.
  19. The nucleus membrane is just like the cell membrane just with more pores called ____ _____ and move large amounts of what 4 things.
    • Nuclear Pores
    • RNA, Hormones, Nucleotides & Proteins
  20. Proteins that enter the nucleus contain a ____ ______ ______
    Nuclear Localization Signal
  21. A chaperone protein called ______ binds the NLS and guides the protein through the nuclear pore complex.
    Importin
  22. Proteins that enter the ER have a special tag called an____ _____ ______ ______ which is always at the ___ of the protein.
    • Endoplasmic Reticulum Signal Sequence.
    • Front
  23. When sugar tags are added to the protein in the tertiary shape in the smooth ER it is called:
    Glycosylated
  24. ____ face is the front of the Golgi Apparatus and the ____ face is the back.
    • CIS
    • Trans
  25. Once the proteins are in the Golgi App. they will be given additional tags and then sorted into ____ ______ with tags that interact with the right proteins.
    Transport Vesicles.

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