INDUSTRIALLY USEFUL MICROBIAL PROCESSES QUIZ

The enzyme which converts optically active isomers of lactic acid to the optically inactive racemic mixture is

invertase

racemase

isomerase

dehydrogenase

TRUE ANSWER : ?
YOUR ANSWER : ?

The biotin level in obtaining L-gluatmic acid by fermentation using Micrococcus glutamicus is critical because

too high level prevents L-glutamic acid production

too low level prevents growths, hence L-glutamic acid production

both (a) and (b)

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following organism produces enzyme taka diastase?

B. subtilis

A. niger

S. cerevisiae

A. oryzae

TRUE ANSWER : ?
YOUR ANSWER : ?

The production of acetic acid from ethanol is an

aerobic process

a combination of both

anaerobic process

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

The rapid process of microbial oxidation developed to produce acetic acid from ethanol at Schutzenbach, Germany is also known as

packed generator

trickle method

Orleans process

both (a) and (b)

TRUE ANSWER : ?
YOUR ANSWER : ?

B. flavum strain can be used for the production of

L-Isoleucine and L-Histidine

All of these

L-Proline

L-Threonine

TRUE ANSWER : ?
YOUR ANSWER : ?

β-carotene is also known as

provitamin A

vitamin D

vitamin A

vitamin C

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a heterofermentative micro-organism?

Leuconostoc mesenteroides

Lactobacillus pentose

Lactobacillus delbrueckii

Lactobacillus bulgaricus

TRUE ANSWER : ?
YOUR ANSWER : ?

Riboflavin is a by-product of __________ fermentation carried out by Clostridium spp.

ethanol

acetone butanol

streptomycin

citric acid

TRUE ANSWER : ?
YOUR ANSWER : ?

The organism used to produce L-glutamic acid is

Micrococcus glutamicus

all of these

Brevibacterium aminogenes

Arthrobacter globiformis

TRUE ANSWER : ?
YOUR ANSWER : ?

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