Question: LO5 - Students will be able to explain the factors that affect membrane fluidity and membrane permeability and identify which molecules are more permeable than

LO5 - Students will be able to explain the factors that affect membrane fluidity and membrane permeability and identify which molecules are more permeable than others. 3. FLUIDITY OF MEMBRANES (Section 5.2) a) Use "Lipid Composition Affect Membrane Fluidity" on pages 98 & 99 to fill in the blanks with up or down arrows to indicate an increase or a decrease in membrane fluidity and permeability due to an increase in for factors. Describe the reason for the effect. 1. Presence of double bonds: Double bonds = | kinks = fluidity & permeability Reason: 2. Length of nonpolar tail: Shorter fatty acids = fluidity & permeability - Reason: 3. Temperature Temperature = fluidity & permeability - Reason: 4. Cholesterol Present at high temperatures = fluidity & permeability Present at low temperatures = fluidity & permeability Reason

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