Which one of the following pairs is not correctly matched :-
A
Serratia – Drug addiction
B
Spirulina – Single cell protein
C
Rhizobium – Biofertilizer
D
Streptomyces – Antibiotic
The answer is A.
Solution
Spirulina, a cyanobacterium, is grown as single cell protein (SCP), a rich source of protein; correctly matched. Rhizobium fixes nitrogen in the root nodules of legumes and is used as a biofertilizer; correctly matched. Streptomyces species produce many antibiotics such as streptomycin, tetracycline and chloramphenicol; correctly matched. Serratia marcescens is a bacterium known for its red pigment and as a cause of hospital infections; it has no connection with drug addiction. So the pair that is not correctly matched is Serratia – drug addiction.
ConceptUses of microbes
Microbes in Human Welfare in past papers
81 questions from this chapter have appeared across 26 exam years.
