Biology 1013 Exam 2 – Accurate Answers To All
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uses the ion gradient to drive a second substrate against the gradient
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1 Amphipathic lipid 2 Peripheral proteins
Factors that affect permeability and
3 Secondary active transport 4
fluidity
Don't know?
Terms in this set (45)
Amphipathic lipid One polar (hydrophillic) end and one nonpolar
(hydrophobic) end
Fluidity movement of phospholipids in the membrane
FRAP (Fluorescence Recovery After Photo-bleaching)-
tests permeability and fluidity
, An increase in fluidity makes an increase
increase or decrease in permeability?
Factors that affect permeability and Length of tails, saturation vs unsaturation,
fluidity temperature, cholesterol
Are shorter tails more or less more
permeable and fluid?
Saturated Saturated with hydrogen. Straight structure.
Unsaturated Has double bonds. Less hydrogen. Can not pack
tightly.
Is saturated or unsaturated more unsaturated
permeable and fluid?
Is a high or low temp more fluid? High temp
What does cholesterol help maintain? homeostasis
Integral proteins embedded in the membrane. Part of the membrane.
Peripheral proteins bind to another molecule at the membrane
Hypertonic Outside has more solutes than the inside of the cell.
Water leaves the cell.
Hypotonic Outside has less solutes than inside of the cell. Water
enters the cell.
Isotonic Equal concentration of solutes inside and outside of
the cell.
Channel passive, facilitated, substrates move down or with the
gradient
Questions
Save Groups
Practice questions for this set
Learn 1 /7 Study using Learn
uses the ion gradient to drive a second substrate against the gradient
Choose an answer
1 Amphipathic lipid 2 Peripheral proteins
Factors that affect permeability and
3 Secondary active transport 4
fluidity
Don't know?
Terms in this set (45)
Amphipathic lipid One polar (hydrophillic) end and one nonpolar
(hydrophobic) end
Fluidity movement of phospholipids in the membrane
FRAP (Fluorescence Recovery After Photo-bleaching)-
tests permeability and fluidity
, An increase in fluidity makes an increase
increase or decrease in permeability?
Factors that affect permeability and Length of tails, saturation vs unsaturation,
fluidity temperature, cholesterol
Are shorter tails more or less more
permeable and fluid?
Saturated Saturated with hydrogen. Straight structure.
Unsaturated Has double bonds. Less hydrogen. Can not pack
tightly.
Is saturated or unsaturated more unsaturated
permeable and fluid?
Is a high or low temp more fluid? High temp
What does cholesterol help maintain? homeostasis
Integral proteins embedded in the membrane. Part of the membrane.
Peripheral proteins bind to another molecule at the membrane
Hypertonic Outside has more solutes than the inside of the cell.
Water leaves the cell.
Hypotonic Outside has less solutes than inside of the cell. Water
enters the cell.
Isotonic Equal concentration of solutes inside and outside of
the cell.
Channel passive, facilitated, substrates move down or with the
gradient
