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What is the best explanation for Pasteur’s results? A - HSC - SSCE Biology - Question 11 - 2022 - Paper 1
Question 11
What is the best explanation for Pasteur’s results? A. Cells arise from existing cells B. Heating prevents broth spoiling C. Gases in the air cause broth to spoil
Worked Solution & Example Answer:What is the best explanation for Pasteur’s results? A - HSC - SSCE Biology - Question 11 - 2022 - Paper 1
Step 1
A. Cells arise from existing cells
Answer
The idea that 'cells arise from existing cells' encapsulates the cell theory, which was significantly supported by Pasteur's experiments. His work demonstrated that life does not spontaneously generate but rather comes from pre-existing life, thus challenging the notion of spontaneous generation.
Step 2
B. Heating prevents broth spoiling
Answer
While heating does indeed kill bacteria, it directly relates to how Pasteur's experiments aimed to disprove spontaneous generation rather than serve as an overarching explanation. This option is true in its context but not the best explanation for his results specifically.
Step 3
C. Gases in the air cause broth to spoil
Answer
This statement relates to the contamination of the broth by airborne microorganisms, but it doesn't reflect the core conclusion of Pasteur's work regarding the origins of cellular life. It does not adequately explain Pasteur’s significant results.