Samacheer Kalvi Class 12 Microbes in Human Welfare Questions - 1

Question: 1

Human insulin is being commercially produced from a transgenic species of

(A) Penicillin

(B) Streptococcus

(C) Escherichia

(D) Mycobacterium

Question: 2

Yamuna Action Plan was a bilateral project signed between

(A) India and Srilanka Government

(B) India and China Government

(C) India and Japan Government

(D) India and Pakistan Government

Question: 3

Which of the following plant species is the most suitable oilseed for biodirect production?

(A) Jatropha curcas

(B) Phyllanthus anarus

(C) Ground nut

(D) Areca nut

Question: 4

Chlortetracycline was isolated from the culture

(A) Streptomyces aureofaciens

(B) Streptomyces griseus

(C) Streptococcus lactis

(D) Aspergillus niger

Question: 5

The purpose of biological treatment of waste water is to

(A) Reduce BOD

(B) Increase BOD

(C) Increase sedimentation

(D) Reduce sedimentation

Question: 6

Which of the following bacteria is used extensively as a bio-pesticide?

(A) Bacillus thurigiensis

(B) Bacillus subtilis

(C) Lactobacillus acidophilus

(D) Streptococcus lactis

Question: 7

Which of the following microorganism is used for production of citric acid in industries?

(A) Aspergillus niger

(B) Lactobacillus bulgaris

(C) Penicillium citrinum

(D) Rhizopus nigricans