Which of the following fermentation is carried out by yeast?
Anonymous Quiz
52%
Lactic acid fermentation
44%
Alcohol fermentation
4%
Pyruvic fermentation
0%
Acrylic fermentation
Which of the following is used to pack columns in adsorption chromatography?
Anonymous Quiz
30%
Carbon
55%
Silica gel
10%
Potassium hydroxide
5%
Aluminium oxide
😱1
Which of the following stationary phase is not used in gel filtration chromatography?
Anonymous Quiz
36%
Sephadex
14%
Sephacryl
36%
Bio-Gel
14%
Resin beads
Chromatography is used to separate ____________
Anonymous Quiz
64%
Complex mixture compounds
28%
Simple mixtures
8%
Viscous mixtures
0%
Halogens
The Rf value is the ratio of distance travelled by solvent to the distance travelled by the solute.
Anonymous Quiz
79%
True
21%
False
Which of the following is not a factor to investigate in a site survey?
Anonymous Quiz
33%
BOD/COD
22%
Sterility
11%
Colour
33%
Radioactivity
Which of the following is a primary treatment?
Anonymous Quiz
48%
Sedimentation
30%
Activated sludge
13%
Sand filters
9%
Microstrainers
Which is the use of comminutors?
Anonymous Quiz
65%
To reduce the size of particles
12%
To remove the grit
18%
To remove large particles
6%
To remove small particles
Which of the following is used to grow anchorage-dependent cells?
Anonymous Quiz
17%
Airlift fermenter
33%
Tower fermenter
33%
Hollow fibre chamber
17%
Perfusion bioreactor
Which of the following bioreactor consists of a vessel replaced by a multilayered bag?
Anonymous Quiz
53%
Single Use bioreactors
20%
Perfusion bioreactors
20%
Airlift bioreactor
7%
Tower bioreactor
What is the function of carbon in stainless steel?
Anonymous Quiz
72%
Improves resistance to corrosion
11%
Improves ductility
11%
Reduces sensitization
6%
Improves halogen resistance
Which of the following class consists of microorganisms which are not causative agents?
Anonymous Quiz
38%
EFB Class 1
50%
EFB Class 2
6%
EFB Class 3
6%
EFB Class 4
Which of the following class of microorganisms causes less threat to a man?
Anonymous Quiz
50%
Low-risk microorganisms
15%
High-risk microorganisms
5%
Medium-risk microorganisms
30%
Environmental-risk microorganisms
Which of the following regulates gas flow electronically?
Anonymous Quiz
39%
Rotameter
22%
MFC
22%
Centrifuge
17%
Incubator
Which of the following is not the function of buffer?
Anonymous Quiz
33%
Prevent cell lysis
33%
Chelating the metals
20%
Prevent protease action
13%
Prevent lipase action
Which of the following is not the product of cell disruption?
Anonymous Quiz
29%
DNA
0%
RNA
7%
Protein
64%
Water