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Mitochondria

Pure fraction...

Question

Pure fractions of cellular components are isolated by _________.

A

Chromatography

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B

Differential centrifugation

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C

Scanning electron microscopy

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D

X-ray diffraction

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Solution

The correct option is B Differential centrifugation
B. Differential centrifugation
Solution : Differential centrifugation is used to separate the components of cell by using a density gradient based on their sedimentation rate during centrifugation. They separate as layers in the solution that with different densities for different cellular component.
So the correct answer is "Differential centrifugation".

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Q. Pure fractions of cellular components can be isolated by

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Q. Components of a pure substance are separated by a/an process.

Q. The total vapour pressure,

P_{total}

(in torr) for a mixture of two volatile components,

A

B

P_{total}

= 220 - 110

X_{B}

X_{B}

is mole fraction of component,

B

Hence, pressure (in torr) of pure components,

A

B

are respectively:

The mole fraction of component A in vapour phase is $x_{1}$ and mole fraction of component A in liquid mixture is $x_{2} (P_{A}^{0}$ = vapour pressure of pure A; $P_{B}^{0}$ = vapour pressure of pure B). What is the total pressure?

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