What property of the phospholipid bilayer allows proteins to move laterally in the membrane?

1 answer:

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The property of the phospholipid bilayer that allows proteins to move laterally in the membrane would be the ability to behave as a two-dimensional fluid where the molecules can freely move laterally. It is an important property and is affected by composition and temperature largely.

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Given:
The heat content of the pizza is Q = 500 kcal
The volume of the cold water is V = 50 L
The mass of a liter of cold water is 1 kg.

Calculate the mass, M, of cold water.
M = (50 L)*(1 kg/L) = 50 kg

The specific heat of water is
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Also,
1 kcal = 4184 J, therefore
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Let ΔT = increase in temperature of the cold water, °C (same as K).
Then
Q = M*c*ΔT
or
ΔT = Q/(M*c)
$\Delta T = \frac{(2.092 \times 10^{6} J)}{(50 \, kg)(4.184 \times 10^{3} \, \frac{J}{kg-K)}) } =10 \,K=10 \,^{o}C$

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