The Candida species require fermentation equipment lined with plastic because they are extremely sensitive to traces of cobalt none of these traces of nickel traces of iron TRUE ANSWER : ? YOUR ANSWER : ?
A major organism used in commercial bioleaching for copper recovery is Desulfovibrio desulfuricans Pseudomonas aeruginosa Thiobacillus ferrooxidans Aspergillus niger TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following are true for the heterofermentative microorganism producing lactic acid? None of these Some lactic acid with carbon dioxide, ethyl alcohol, acetic acid and trace amount of few other products They are used for commercial lactic acid production Only trace amounts of end products other than lactic acid TRUE ANSWER : ? YOUR ANSWER : ?
The enzyme which converts optically active isomers of lactic acid to the optically inactive racemic mixture is racemase isomerase invertase dehydrogenase TRUE ANSWER : ? YOUR ANSWER : ?
Most productive species among the different vitamin B12 producing Pseudomonads is P. aureofaciens none of these P. denitrificans P. ovalis TRUE ANSWER : ? YOUR ANSWER : ?
The 95% ethanol is equivalent to 120 proof 170 proof 110 proof 190 proof TRUE ANSWER : ? YOUR ANSWER : ?
The sugar concentration of molasses used in fermentation should be 20-30% 30-38% 4-5% 10-18% TRUE ANSWER : ? YOUR ANSWER : ?
Rickes et al. recovered active crystalline vitamin B12 from the culture of Streptomyces lactis Bacillus megaterium Streptomyces olivaceus Streptomyces griseus TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not an industrial product made by the fungus Aspergillus niger? Lysine Galactosidase Citric acid Gluconic acid TRUE ANSWER : ? YOUR ANSWER : ?
Which species from the followings is resistant to methyl tryptophan? E. coli B. subtilis Candida utilis Hansenula anomala TRUE ANSWER : ? YOUR ANSWER : ?