Module 2 Chemistry and Biomolecules

Covalent bond

When electrons are shared between atoms

Polar covalent bond

When electrons are unequally shared between atoms

Hydrogen bonds

weak non-covalent bonds

Hydrophilic

Can interact and dissolve water, mostly polar bonds

Hydrophobic

Does not interact with water, mostly nonpolar bonds

Lipophobic

Does not interact well with nonpolar molecules (lipids)

Lipophilic

Dissolve in nonpolar lipds

Amphiphilic

Both polar and nonpolar properties

Acids

Molecules that release hydrogen ions (H+) when dissolved in water

Bases

Molecules that bind protons (H+)

Neutral pH

7

Acidic solution

pH<7

Basic solution

pH>7

Biomolecules

Synthesized by living organisms and contains carbon atoms

Polymers

Made up of repeating subunits (monomer)