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Quiz

Structure and Function of Membranes

Daniel Brand 8 perguntas 1.532 visualizações

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Perguntas do quiz (8)

  1. 1The main component of a biological membrane is a [blank_start]phospholipid[blank_end] [blank_start]bilayer[blank_end]. [blank_start]Hydrophilic[blank_end] heads face out while [blank_start]hydrophobic[blank_end] tails face in. The model is called a "[blank_start]fluid[blank_end] [blank_start]mosaic[blank_end] [blank_start]model[blank_end]" because there are several components making up the membrane, which all move laterally relative to each other.
    1. Aphospholipid
    2. Bbilayer
    3. CHydrophilic
    4. Dhydrophobic
    5. Efluid
    6. Fmosaic
    7. Gmodel
  2. 2The molecule MOST responsible for plasma membrane fluidity is...
    1. APhospholipid
    2. BCholesterol
    3. CProtein channel
    4. DIntegral protein
    5. ECytoskeleton
  3. 3A protein with a carbohydrate attached to it is called a [blank_start]glycoprotein[blank_end].
    1. Aglycoprotein
  4. 4Which of the following statements are true about cell surface membranes? Select all that apply.
    1. APartially permeable.
    2. BRegulate transport into/out of cells.
    3. CPrimary organelle involved in modifying and packaging polypeptides.
    4. DDisplaying antigens.
    5. EReaction site for some metabolic pathways.
    6. FSite of glycolysis.
  5. 5All biological membranes are roughly the same as they fulfill the same role.
    1. AVerdadeiro
    2. BFalso
  6. 6Which of the following statements correctly describe the effect of temperature on fatty acids? Select all that apply.
    1. AAs the temperature decreases, saturated fatty acids become less fluid.
    2. BAs the temperature decreases, saturated fatty acids become more fluid.
    3. CAs the temperature decreases, unsaturated fatty acids become more fluid.
    4. DAs the temperature decreases, unsaturated fatty acids become less fluid.
  7. 7Which of the following statements correctly describe the effect of temperature on biological membranes? Select all that apply.
    1. AAs the temperature increases, the membrane becomes more fluid.
    2. BAs the temperature increases, the membrane becomes less permeable.
    3. CAs the temperature increases, membrane components move around more.
    4. DAs the temperature increases, cholesterol works to make the membrane more fluid.
  8. 8Which of the following can denature proteins in biological membranes?
    1. AHigh temperatures
    2. BLow temperatures
    3. CExtreme pH
    4. DAcetone
    5. EEthanol
    6. FWater

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Descrição
Biology (Biological Membranes) Quiz sobre Structure and Function of Membranes, criado por Daniel Brand em 04-03-2017.
Idioma
English
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