Biomolecules

By Alex Nelson

Carbohydrates

Contains Hydrogen, Carbon and Oxygen in a 1:2:1 ratio. The polysaccharides which are polymers, are starches, and the monosaccharides which are monomers are sugars. Carbohydrates are the main source of energy in most living things


Functions - Used to build structures of the bodies of some plants and animals.


Examples - Cereal, crackers, and bread products.

Proteins

Proteins are made of carbon, hydrogen, nitrogen, and oxygen. Their monomers are amino acids, and the polymers are just proteins. Proteins must have a specific shape to work.


Functions - They increase speed of chemical reactions, create hormones, and transport molecules.


Examples - Meat, beans, and eggs.

Nucleic Acids

Nucleic acids contain hydrogen, carbon, oxygen, nitrogen, and phosphorus. The monomers are nucleotides, and the polymers are DNA and RNA.


Functions - Carries genetic material.


Examples - Adenine, thymine, and guanine

Lipids

Lipids are made of carbon and hydrogen. The monomers are glycerol and fatty acids, and the polymers are just lipids.


Function - Long term energy storage, make up cell membrane, and signaling.


Examples - Milk, cheese, and meat. All contain saturated fat.