Plasma Membrane
a year ago
zballard_12934
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10 QuestionsShow answers
  • Question 1
    30 seconds
    Q.

    The cell membrane is _______________ permeable.

    answer choices

    selectively

    somewhat

    physically

    ionically

  • Question 2
    30 seconds
    Q.

    The cell membrane is mostly made of what?

    answer choices

    Membrane-spanning Proteins

    Surface Proteins

    Phospholipids

    Carbohydrates

  • Question 3
    30 seconds
    Q.

    What are the two parts of a phospholipid?

    answer choices

    head

    enzyme

    tail

    hormone

  • Question 4
    30 seconds
    Q.

    What forms due to a difference in concentration of particles on opposite sides of the membrane?

    answer choices

    concentration flow

    concentration gradient

    equilibrium

    diffusion gradient

  • Question 5
    30 seconds
    Q.

    Particles move across the membrane ___________ attempting to reach equilibrium.

    answer choices

    orderly

    slowly

    randomly

    in a single file line

  • Question 6
    30 seconds
    Q.

    Particles continually moving across the membrane attempting to level concentrations of particles on both sides is __________________.

    answer choices

    dynamic friction

    equilibrium

    dynamic equilibrium

    static equilibrium

  • Question 7
    30 seconds
    Q.

    The phospholipid head is _____________ & _____________

    answer choices

    Hydrophilic

    Hydrophobic

    Polar (+)

    Uncharged

  • Question 8
    30 seconds
    Q.

    The phospholipid tail is _____________ & _____________

    answer choices

    Hydrophilic

    Hydrophobic

    Polar (+)

    Uncharged

  • Question 9
    30 seconds
    Q.

    What type of protein assist in moving specific particles across the membrane?

    answer choices

    Membrane-spanning

    Surface

    Cholesterol

    Carbohydrates

  • Question 10
    60 seconds
    Q.

    Ions such as Na+ and K+ are unable to move across the membrane freely because of what reason?

    answer choices

    the charge particle repels against the charged phospholipid head

    the neutral particle repels against the charged phospholipid head

    the charge particle attracts the charged phospholipid head

    the neutral particle attracts the neutral phospholipid head

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