Recall Pasteur's Experiment on Spontaneous Generation

question 28

Multiple Choice

Recall Pasteur's experiment on spontaneous generation. Originally, he used sealed and unsealed flasks instead of swan- necked and unsealed flasks. Critics claimed that the experiment was inconclusive. Which of the following criticisms would be addressed by using a swan- necked flask instead of the sealed flask?

• A) Fresh air is required for spontaneous generation.
• B) The broth was not nutritious enough.
• C) There had not been enough time for spontaneous generation to occur.
• D) The broth was heated too intensively.

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Definitions:

Amino Acid

Organic compounds that combine to form proteins, serving as the building blocks of protein synthesis and playing vital roles in processes such as neurotransmitter transport and biosynthesis.

Hemoglobin

A protein in red blood cells that carries oxygen from the lungs to the rest of the body and returns carbon dioxide from the body to the lungs.

Polypeptide Chains

Sequences of amino acids linked by peptide bonds, forming part of or the whole protein molecule.

Quaternary

A level of protein structure where multiple polypeptide chains, referred to as subunits, come together to form a functional protein complex.