Biological Molecules and Macromolecules Quiz

Test your knowledge on monosaccharides, lipids, nucleotides, enzymes, and more! Learn key concepts of biochemistry.

#1

Which of the following is a monosaccharide?

Glucose
Sucrose
Cellulose
Starch
#2

What is the primary function of lipids?

Energy storage
Providing structural support
Enzyme catalysis
Transporting oxygen
#3

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

Phosphate group
Nitrogenous base
Glycerol
Sugar
#4

What is the function of an enzyme?

Transport molecules
Store genetic information
Facilitate chemical reactions
Provide structural support
#5

Which of the following is NOT a type of RNA?

Messenger RNA (mRNA)
Transfer RNA (tRNA)
Ribosomal DNA (rDNA)
Ribosomal RNA (rRNA)
#6

Which polysaccharide serves as an energy storage molecule in animals?

Cellulose
Starch
Glycogen
Chitin
#7

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

They contain double bonds
They are typically liquid at room temperature
They have a higher melting point
They are healthier than unsaturated fats
#8

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

Store and transmit genetic information
Facilitate cell signaling
Provide energy storage
Serve as enzyme cofactors
#9

Which of the following is a characteristic of proteins?

Contain peptide bonds
Soluble in nonpolar solvents
Composed of nucleotides
Primary source of quick energy
#10

What is the structure of a nucleic acid?

A single-stranded chain of nucleotides
A double helix of amino acids
A double helix of nucleotides
A single-stranded chain of amino acids
#11

Which of the following is NOT a function of carbohydrates?

Energy storage
Structural support
Cell signaling
Facilitate chemical reactions
#12

What is denaturation in the context of proteins?

The breakdown of proteins into amino acids
The alteration of a protein's shape and structure
The synthesis of proteins from amino acids
The joining of two or more proteins
#13

What is the primary structure of a protein?

The sequence of amino acids
The folding pattern of the protein
The arrangement of multiple protein subunits
The interaction with other molecules
#14

Which of the following is an example of a disaccharide?

Glucose
Fructose
Sucrose
Cellulose

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