Home Biology Biological Classification Skill Builder In an experiment, a microbiologist put equal…
Biology Biological Classification Skill Builder Single Correct MCQ
Published on: August 14, 2026

In an experiment, a microbiologist put equal number of each of the following organism into a flask of sterile broth, consisting mostly of sugar and a few amino acids. He, then placed the In an experiment, a microbiologist put equal number of each of the following organism into a flask of sterile broth, consisting mostly of sugar and a few amino acids. He, then placed the flask in the dark. Which of the organism would be most likely to survive?

A
Chemoheterotrophic bacteria
B
Cyanobacteria
C
Photoheterotrophs
D
Photoautotrophs

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The correct answer is:
A

Chemoheterotrophs are unable to synthesize their own organic molecules. Instead, these organisms get their energy from the oxidation of inorganic molecules such as carbohydrates, amino acids, lipids, etc., in their environment.

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