NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Monomers combine to form ____ through the process of ____
A
polymers; hydrolysis
B
polymers; dehydration synthesis
C
monomers; hydrolysis
D
monomers; dehydration synthesis
Explanation: 

Detailed explanation-1: -The monomers combine with each other using covalent bonds to form larger molecules known as polymers. In doing so, monomers release water molecules as byproducts. This type of reaction is known as dehydration synthesis, which means “to put together while losing water.”

Detailed explanation-2: -In the dehydration synthesis reaction above, two molecules of the sugar glucose (monomers) combine to form a single molecule of the sugar maltose. One of the glucose molecules loses an H, the other loses an OH group, and a water molecule is released as a new covalent bond forms between the two glucose molecules.

Detailed explanation-3: -polymerization, any process in which relatively small molecules, called monomers, combine chemically to produce a very large chainlike or network molecule, called a polymer. The monomer molecules may be all alike, or they may represent two, three, or more different compounds.

Detailed explanation-4: -Complex carbohydrates, nucleic acids, and proteins are all examples of polymers that are formed by dehydration synthesis. Monomers like glucose can join together in different ways and produce a variety of polymers.

Detailed explanation-5: -Dehydration synthesis is a key step in the formation of polymers, large molecule chains formed by linking together multiple monomer units (via dehydration, of course). In biology, dehydration synthesis forms large polymers commonly referred to as biological macromolecules.

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