Besides transporting oxygen, hemoglobin also transports:

The repeating disaccharide units in cellulose is:

One of the physiological roles of vitamins is to produce coenzymes.

Carbon monoxide (CO) binds more tightly to hemoglobin than oxygen (O2), because:

Convergent evolution…

Secondary structures of proteins are predominantly stabilized by hydrophobic interactions.

Besides D and L isomers, glyceraldehyde also exists in α and β forms.

Fetal hemoglobin (α2γ2) can easily extract oxygen from maternal hemoglobin (α2β2) because the fetal hemoglobin:

The decrease in pH at the tissue level helps to:

The structure of a protein is partially dictated by the properties of the planar peptide bonds.