Q. Consider the following statements:
1.Gram-negative bacteria are generally more resistant to antibiotics compared to Gram-positive bacteria because they produce more toxins than Gram-positive bacteria.
2.Anaerobic bacteria are organisms that do not require oxygen for growth and may even die in its presence.
Which of the statement(s) given above is/are correct?
Answer: B
Notes:
Explanations –
Statement 1 is incorrect. Gram-negative bacteria are generally more resistant to antibiotics because of their unique cell wall structure. Its cell wall includes an outer membrane that acts as a barrier, preventing many antibiotics from penetrating and reaching the interior of the cell.
Statement 2 is correct. Anaerobic bacteria do not require oxygen for growth, and some types, known as obligate anaerobes, can be harmed or even die in the presence of oxygen. Gram-negative and anaerobic bacteria are more resistant to drugs due to their extra cell membrane protection.
Source: The Hindu
