Multiple Choice QuestionsWhich of the following statement(s) are true?
Antibiotics can kill bacteria, but disinfectants do not
Disinfectants have better bactericidal efficiency than antibiotics
Antibiotics are of microbial origin, but disinfectants are chemical compounds
Antibiotics can be injected into the patients, whereas disinfectants are not
B.
Disinfectants have better bactericidal efficiency than antibiotics
C.
Antibiotics are of microbial origin, but disinfectants are chemical compounds
D.
Antibiotics can be injected into the patients, whereas disinfectants are not
Antibiotics are the agent used for living beings to kill or inhibit the growth of microorganisms in them. They are of microbial origin and can even be injected into the patients. While, disinfectans are the substances being applied to the non-living objects to destroy microorganisms that are living on the objects. They does not necessarily kill all microorganism. They are more potent bactericidal agents having more efficiency than antibiotics. They are chemical compounds that cannot be injected into the living being or patients.
Which one of the following natural polymers is found both in insects and fungi?
Pectin
Chitin
Cellulose
Suberin
Which one of the following antibiotics kills bacterial cells by inhibiting the polymerisation of peptidoglycan?
Aminoglycosides
Fluoroquinolones
Quinines
Penicillins
Which one of the following organisms is not used as a biocontrol agent?
Bacillus sphaericus
Trichoderma viride
Bacillus thuringiensis
Bacillus subtilis
Which one of the following insecticides is of plant origin?
Ecdysone
Rotenone
Parathion
Malathion
Curdling of milk in small intestine occurs due to the action of
trypsin
erypsin
rennin
chymotrypsin
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