Laboratory Techniques

Question 1

A technique used for the separation of particles from a solution according to their size, shape, density, viscosity of the medium and rotor speed.

Answer 1

Centrifugation

Question 2

A device that separates particles from a solution through use of a rotor.

Answer 2

Centrifuge

Question 3

The accuracy and precision of the results are dependent on how reliable this system is.

Answer 3

Weighing

Question 4

This method is used to separate components of a mixture based on different boiling points.

Answer 4

Distillation

Question 5

It is the process in which liquid is vaporized (turned to steam), recondensed (turned back into a liquid) and collected in a container.

Answer 5

Distillation

Question 6

The technique used to separate solids from liquids in a heterogeneous mixture.

Answer 6

Filtration

Question 7

The act of removing solids in a fluid via passing fluid through a barrier which can hold the solid particles.

Answer 7

Filtration

Question 8

A measure of the Acidity or Alkalinity of a solution.

Answer 8

pH Measurement

Question 9

It refers to the extraction, screening and identification of the medicinally active substances found in plants.

Answer 9

Phytochemical Analysis

Question 10

Chemical compounds found in plants, and the term is often used to describe a large number of secondary metabolites derived from the plants.

Answer 10

Phytochemicals

Question 11

A method that allows the multiplication of bacterial cells in or on a culture medium under controlled laboratory conditions

Answer 11

Bacterial Culture