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Biological Molecules and Macromolecules Quiz

#1

Which of the following is a monosaccharide?

Glucose
Explanation

Monosaccharides are single sugar molecules.

#2

What is the primary function of lipids?

Energy storage
Explanation

Lipids primarily store energy and serve as structural components.

#3

Which of the following is not a component of a nucleotide?

Glycerol
Explanation

Glycerol is a component of lipids, not nucleotides.

#4

What is the function of an enzyme?

Facilitate chemical reactions
Explanation

Enzymes act as catalysts, speeding up chemical reactions.

#5

Which of the following is NOT a type of RNA?

Ribosomal DNA (rDNA)
Explanation

rDNA is not RNA; it's a form of DNA found in ribosomes.

#6

Which polysaccharide serves as an energy storage molecule in animals?

Glycogen
Explanation

Glycogen is the primary energy storage polysaccharide in animals.

#7

Which of the following is a characteristic of saturated fatty acids?

They have a higher melting point
Explanation

Saturated fatty acids lack double bonds and have higher melting points.

#8

Which of the following is NOT a function of nucleic acids?

Provide energy storage
Explanation

Nucleic acids primarily store and transmit genetic information.

#9

Which of the following is a characteristic of proteins?

Contain peptide bonds
Explanation

Proteins are made up of amino acids linked by peptide bonds.

#10

What is the structure of a nucleic acid?

A double helix of nucleotides
Explanation

Nucleic acids, like DNA and RNA, have a double helix structure.

#11

Which of the following is NOT a function of carbohydrates?

Facilitate chemical reactions
Explanation

Carbohydrates primarily provide energy and structural support.

#12

What is denaturation in the context of proteins?

The alteration of a protein's shape and structure
Explanation

Denaturation disrupts the natural folding of proteins.

#13

What is the primary structure of a protein?

The sequence of amino acids
Explanation

The primary structure of a protein is the linear sequence of amino acids.

#14

Which of the following is an example of a disaccharide?

Sucrose
Explanation

Sucrose is composed of glucose and fructose.

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