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Biology 11, Chapter 1
Cell Structure And Functions - 5
1.
In chromatography Separation involves the use of?
a) Three phases
b) Five phases
c) Four phases
d) Two phases
2.
Separation of substances in a mixture involves the use of two phases, one of which is stationary and the other is?
a) Circular
b) Standstill
c) Motionless
d) Mobile
3.
Separation of substances in a mixture depends upon the _______ movement of the test substances between two phases?
a) Fast
b) Circular
c) Ocular
d) Differential
4.
What are names of seven types of chromatography?
a) Column, Planar, Paper, Thin layer, Displacement, Gas, and Liquid chromatography
b) Column, Planar, Paper, Thick layer, Displacement, Gas, and Liquid chromatography
c) Column, Planar, Wood, Thin layer, Displacement, Gas, and Liquid chromatography
d) Column, Planar, Paper, Thin layer, Placement, Gas, and Liquid chromatography
5.
Which one is a simple and most widely used technique for chromatography?
a) Gas chromatography
b) Liquid chromatography
c) Paper chromatography
d) Column chromatography
6.
What is a laboratory procedure that separates molecules according to their size, shape, molecular weight and surface charge whether (+) or (-)?
a) Chromatography
b) Counter current
c) Hydrolysis
d) Electrophoresis
7.
The procedure used to separate Macromolecules such as nucleic acids or proteins in a mixture is called?
a) Hydrolysis
b) Electrophoresis
c) Counter current
d) Chromatography
8.
For electrophoresis the _____ is sandwiched between glass or plastic plates to form a ______ slab?
a) plastic, viscous
b) Proteins, viscous
c) Gel, viscous
d) Gel, plastic
9.
For electrophoresis the gel is sandwiched between glass or plastic plates to form a viscous slab. The two ends of the slabs are suspended in two salt solutions that are connected by electrodes to a power source. When voltage is applied to the apparatus, the molecules present in the gel migrate through the?
a) Electric field
b) Magnetic field
c) Electric and magnetic field
d) Water
10.
For electrophoresis the gel is sandwiched between glass or plastic plates to form a viscous slab. The two ends of the slabs are suspended in?
a) Two salt solutions
b) Two Nucleic acids
c) One salt solution
d) Nucleic acids
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