Dehydration Synthesis, Hydrolysis, and Polymers

A _________ reaction removes a molecule of water to bond molecules together to create a polymer.

• hydrolysis

• water

• dehydration synthesis

• magical

Answer explanation

The correct answer is 'dehydration synthesis'. In this type of reaction, a molecule of water is removed to bond molecules together, resulting in the formation of a polymer. This process is not related to 'hydrolysis', 'water', or 'magical', thus making 'dehydration synthesis' the correct choice.

What type of reaction is shown?

• Dehydration synthesis

• Hydrolysis

Answer explanation

The question asks about the type of reaction being demonstrated. The correct option is 'Hydrolysis'. Hydrolysis is a type of reaction where water is used to break down a compound. Therefore, the answer is not 'Dehydration synthesis', which is a process of combining molecules to form a larger one, with the removal of water.

Which type of reaction is shown?

• Dehydration Synthesis

• Hydrolysis

Answer explanation

The question asks about the type of reaction depicted. Dehydration Synthesis is the correct answer. It's a type of reaction where two molecules are connected by removing a water molecule. Thus, the name Dehydration Synthesis, as dehydration refers to the removal of water, and synthesis refers to the creation of a new molecule.

A __________ consists of many monomers bonded together.

• monomer

• hydrocarbon

• peptide

• polymer

Answer explanation

In the given question, we are asked about a substance that is made up of many monomers bonded together. The correct answer is 'polymer', because a polymer is a large molecule composed of repeating subunits called monomers. Monomers are connected to each other via covalent bonds to form a polymer. Therefore, the statement correctly refers to a polymer.

Describes the breaking of a bond within a polymer using water.

• Hydrolysis

• Dehydration

What does a dehydration synthesis reaction do?

• Adds water to break up polymers

• Adds water to put polymers together

• Removes water to break up polymers

• Removes water to put polymers together

Which of the following requires the dehydration reaction of two amino acids?

• Carboxyl group of first amino acid binds with carboxyl group of second amino acid

• Carboxyl group of first amino acid binds with amino group of second amino acid

• R group of first amino acid binds with R group of second amino acid

• Amino group of first amino acid binds with amino group of second amino acid

In order to break apart a polymer ________ must be added.

• carbon

• water

• oxygen

• hydrogen

Answer explanation

The process of breaking apart a polymer is called hydrolysis, which means 'to split water'. This involves the addition of a water molecule, which breaks the bond holding the polymer subunits together. Hence, the correct answer is water.

Macromolecules are made of repeating subunits called

• monomers

• monosaccharides

• polymers

• polysaccharides

Answer explanation

Macromolecules are large molecules composed of repeated subunits. These repeating units are known as 'monomers'. Thus, the correct answer to the question is 'monomers'. Other options like monosaccharides, polymers, and polysaccharides are related to this topic, but they do not accurately answer the question.

Monomers combine to form ________ through the process of ________.

• polymers; hydrolysis

• polymers; dehydration synthesis

• monomers; hydrolysis

• monomers; dehydration synthesis