Dehydration reactions are used in forming which of the following compounds?

A) triacylglycerides

B) polysaccharides

C) proteins D) A and C only

E) A, B, and C

E) A, B, and C

Explanation:

A chemist would call them condensation reactions, that is, reactions in which two molecules combine by splitting out a molecule of water.

A) Triacylglycerides form by splitting out molecules of water from glycerol and fatty acids

C₃H₅ (OH) ₃ + 3RCOOH ⟶ C₃H₅ (OCOR) ₃ + 3H₂O

glycerol fatty acid triacylglyceride water

B) Carbohydrates form by splitting out molecules of water from simpler carbohydrates

C₆H₁₂O₆ + C₆H₁₂O₆ ⟶ C₁₂H₂₂O₁₁ + H₂O

glucose fructose sucrose water

C) Proteins form by reactions between amino acids.

H₂NCH (R) CO-OH + H-NHCH (R) COOH

amino acid amino acid

⟶ H₂NCH (R) CO-NHCH (R) COOH + H₂O

dipeptide water