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

Dehydration reactions are used in forming - option E. A triacylglycerides, B polysaccharides, C proteins.

Dehydration reaction where two hydrogen atoms from one molecule combine with an oxygen atom on the other molecule or hydroxyl group from one molecule combine with a hydrogen atom from the other molecule in both cases, water is released as a product.

A) Triacylglycerides -

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 or polysaccharides: monomers like glucose from polymers.  

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

Thus, the Dehydration reactions are used in forming - option E. A triacylglycerides, B polysaccharides, C proteins.

Learn more about dehydration:

link

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

i am going to guess that it is co2.