wiz-icon
MyQuestionIcon
MyQuestionIcon
21
You visited us 21 times! Enjoying our articles? Unlock Full Access!
Question

Which of the following statements regarding antibiotics is not correct?


i) Antibiotic is the attenuated microorganisms which in small concentrations, can kill or retard the growth of other harmful microorganisms.
ii) Penicillin was the first antibiotic to be discovered by Alexander Fleming (1928) while working on bacterium Staphylococcus aureus.
iii) The full potential of penicillin as an effective antibiotic was established by Ernest Chain and Howard Florey.
iv) Fleming, Chain, and Florey were awarded the Nobel Prize in 1945.

A
(i) Only
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
(iii) Only
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
(ii) and (iv)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
(i), (iii) and (iv)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A (i) Only
  • Antibiotics are antimicrobials that are released by bacteria, fungi or molds naturally or are synthesized artificially that are capable of killing or inhibiting competing microbial species. They are therefore antimicrobial substances and not entire microorganisms that are used.
  • In 1928 penicillin, the first true antibiotic was discovered by Alexander Fleming from colonies of Staphylococcus bacteria. However, its full potential as an antibiotic was established by Florey and Chain. Howard Florey, Ernst Chain, and Sir Alexander Fleming received the Nobel prize for their work on penicillin in 1945.
  • So, the correct answer is '(i) only'.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Antibiotics
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon