
Biotechnology 9.2 HW
Authored by Michael Alvetro
Science
12th Grade
Used 3+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main purpose of using chromatography in biotechnology applications?
To separate molecules based on size or solubility
To combine molecules into a single phase
To change the color of molecules
To increase the temperature of molecules
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In paper chromatography, the solvent moves up the paper by ______ action.
gravitational
capillary
magnetic
electrical
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the 'frit' in a chromatography column?
To separate molecules by size
To hold the resin in place
To visualize molecules
To add color to the sample.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In column chromatography, the sample is added to the top of the column and gravity pulls it through the resin bead matrix. The molecules are separated based on their size, shape, or charge. What is this process called?
Filtration
Dialysis
Fractionation
Diffusion
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the process of dialysis, a sample with a mixture of desirable and undesirable proteins is placed into a dialysis tube. What is the purpose of the dialysis membrane?
To add color
To separate large molecules
To keep the protein of interest inside the bag
To speed up diffusion.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of chromatography separates molecules based on size?
Ion-exchange chromatography
Gel-filtration chromatography
Affinity chromatography
Hydrophobic-interaction chromatography
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In gel-filtration chromatography, molecules are separated based on their ______.
charge
size
shape
hydrophobicity
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