An organic compound that has an OH group on its side chain is called ethanol. It is flammable and a volatile liquid. Whereas, Glucose is a simple sugar molecule that has carbon and aldehyde groups.
The correct answer is:
- Option A. They are both carbon-based molecules.
- Option C. They both store energy in chemical bonds.
- Option D. They are both used as fuel.
This can be explained as:
- Ethanol and glucose both have carbon atoms in their structures. Ethanol is written as C₂H₅OH and Glucose as C₆H₁₂O₆.
- The energy in both the molecules is stored in their bonds.
- Glucose is used as fuel in living organisms while ethanol is a bio-fuel derived from microorganisms.
Therefore, ethanol and glucose are similar in structures and some functions.
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