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Cell Membranes and Transport

Quiz by Sarah Traverse

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20 questions
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  • Q1
    What is the main component of the cell membrane?
    steroids
    phospholipids
    triglycerides
    polysaccharides
    30s
  • Q2
    The phospholipids in a membrane are arranged...
    in a double layer, tail to tail
    in a double layer, head to tail
    in a double layer, head to head
    in a single layer
    30s
  • Q3
    Other than phospholipids, which other type of lipid can be found in membranes?
    cholesterol
    30s
  • Q4
    Proteins which span the cell membrane are called...?
    extrinsic
    peripheral
    non-polar
    intrinsic
    30s
  • Q5
    Proteins which have carbohydrate attached to them are called...?
    glycoproteins
    30s
  • Q6
    The layer of carbohydrate found on the outside of a cell membrane is called the...
    glycocalyx
    30s
  • Q7
    Glycoproteins in membranes can act as...?
    receptors
    30s
  • Q8
    Which one of these factors would not lead to an increase in the rate of diffusion?
    an increase in diffusion distance
    a decrease in the size of the molecule
    an increased surface area
    an increase in temperature
    30s
  • Q9
    Which of these substances cannot pass through the lipid bilayer by simple diffusion?
    oxygen
    carbon dioxide
    glucose
    steroids
    30s
  • Q10
    Which feature is common to both facilitated diffusion and active transport?
    they require energy
    proteins in the membrane are required
    they occur down a concentration gradient
    they occur against a concentration gradient
    30s
  • Q11
    30s
  • Q12
    Which of the following represents the direction that water would move by osmosis?
    From -200kPa to -100kPa
    From 200kPa to 100kPa
    From -100kPa to -200kPa
    From 100kPa to 200kPa
    30s
  • Q13
    Which word represents solutions that have the same concentration?
    isotonic
    30s
  • Q14
    Which word describes a plant cell that has lost an excessive amount of water?
    plasmolysed
    30s
  • Q15
    Which of the following is not part of the mechanism to transport glucose from the gut into the blood stream?
    sodium-glucose cotransporter
    sodium channel
    glucose transporter
    sodium-potassium pump
    30s

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