Question Detail

MIC 121 Introductory Microbiology Objective Question

Question

Which of the following was John Needham's conclusion regarding his experiment with boiled meat broth?
Options
A Boiling kills all microbes, proving biogenesis.
B Microorganisms entered the broth from the air.
C He reaffirmed the theory of spontaneous generation, claiming 'life' in non-living matter caused microbial growth.
Correct Answer
D His experiment definitively disproved spontaneous generation.
Correct Answer

Option C is the correct answer.

Detailed Explanation

After boiling meat broth for a short time and then leaving it open, Needham observed microbial growth. He concluded that there was 'life' present in non-living matter, including air and oxygen, which caused spontaneous generation to occur, thus reaffirming the theory in his view.

Hint

Needham's experiment was actually interpreted as *supporting* spontaneous generation, in contrast to later experiments.

Question Info