Biomolecule Quiz: Test Your Knowledge of Biological Molecules

Study Notes

Amino Acids and Proteins

Amino acids are the monomers of proteins.
Amino acids have a carboxyl group, and some may contain sulfur atoms.
There are 21 amino acids, including Selenocysteine.
The amino acids found in biological proteins are of L-configuration and are dextro or laevorotatory.
Ornithine is a non-protein amino acid involved in urea biosynthesis, but it does not occur in proteins of biological systems.
Amino acids can contain sulfur atoms, and Cysteine is a sulfur-containing amino acid.

Protein Structure and Function

Covalent bonds are the strongest bonds.
Hydrogen bonds and Van der Waals forces are weaker bonds that connect molecules.
Hemoglobin has a lower affinity to oxygen than myoglobin.
The iron in heme is linked to globin through Histidine.
Oxygen dissociation curve of hemoglobin is shifted to the right by the Bohr effect.
Frederick Sanger was the first to identify the structure of a protein, specifically Insulin.

pH and Buffers

pH is not the negative log of the oxygen molecule concentration.
pH 7.5 is a physiological pH.
Antidiuretic hormone regulates water balance in the body.
Vomiting can cause the stomach to become more acidic.

Enzymes and Folding

Chaperone rescues proteins that have folded improperly and allows them to refold properly.
Globular proteins have multiple folding of polypeptide chains, giving them an ellipsoidal shape.
Allosteric enzymes have certain characteristics, and all of the above statements about them are true.
Disulfide bonds can stabilize molecules.
Beta sheets are not an example of a protein's tertiary structure.

Miscellaneous

Lipids do not have amino acids as monomers.
Collagen is the most abundant protein present in the human body.
It is not true that the only difference between amino acids is the carboxyl group.

Description

Test your knowledge on biomolecules with this quiz covering amino acids, lipids, proteins, and chemical bonds. Questions range from identifying monomers and polymers to understanding different types of bonds present in biomolecules.