A Researcher Wants to Determine If a Unicellular Organism He

question 37

Multiple Choice

A researcher wants to determine if a unicellular organism he discovered is an autotroph or a heterotroph. He radioactively labels the carbon in CO₂ and C₆H₁₂O₆, and exposes one culture of his organism to the labeled CO₂ and another culture to the labeled C₆H₁₂O₆. What would happen if his organism is an autotroph?

• A)Labeled carbon would be seen in the carbohydrates of organisms exposed to CO₂.
• B)Labeled carbon would be seen in the carbohydrates of organisms exposed to C₆H₁₂O₆.
• C)Labeled carbon would not be seen in the carbohydrates of either culture.
• D)Labeled carbon would be seen in carbohydrates of both cultures.

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Definitions:

FreshCase Packaging

A packaging technology designed to extend the shelf life of perishable goods such as meats through vacuum sealing and specialized materials.

Vacuum Package

A packaging method that involves removing air from a package and sealing it to extend the shelf life of its contents, protect against spoilage, and reduce volume.

Red Meat

Red meat refers to the meat of mammals, which is typically darker in color than poultry due to higher levels of myoglobin, often including beef, pork, and lamb.

BioFuel Energy

Energy produced from organic materials or biomass, offering a sustainable alternative to fossil fuels.