The following table describes five molecules that belong to the same class.
Molecule Function
Hemoglobin transports oxygen in the blood
Amylase an enzyme that breaks down starch
Immunoglobulin an antibody produced in response to an invading particle
Collagen the main structural component of connective tissues
Aquaporin transports water in and out of the cell
Which class of biomolecule do the molecules in the table belong to?
A.
nucleic acids
B.
carbohydrates
C.
proteins
D.
lipids
C. proteins
The molecules in the table belong to the class of proteins.
To determine the class of biomolecule to which these molecules belong, we can analyze the given functions of each molecule.
Hemoglobin: Hemoglobin transports oxygen in the blood.
Amylase: Amylase is an enzyme that breaks down starch.
Immunoglobulin: Immunoglobulin is an antibody produced in response to an invading particle.
Collagen: Collagen is the main structural component of connective tissues.
Aquaporin: Aquaporin transports water in and out of the cell.
Based on these functions, it is clear that these molecules are all performing diverse biological functions. Among the given options, the most suitable class of biomolecules that includes molecules performing such diverse functions is proteins.
Therefore, the correct answer is C. proteins.