1. a) name the 4 major organic compounds. b) describe how they differ in their uses.

The four major organic compunds are lipids, carbohydrates, proteins, and nucleic acids.

Lipids are used to store energy, insulate insulate, and they help build cell membranes. Examples of lipids are fats, oils, and waxes.

Carbohydrates are used to give us quick energy and they help build cell walls. Examples of carbohydrates include bread, pasta, cereal, and rice.

The role of proteins is to build our bodies, help our immune system, and help cells communicate. Such examples include meat, beans, eggs, fish, nuts, soy, and dairy.

Finally, Nucleic acids are used to store gentetic info. Anything plant or animal based is considered a nucleic acid.

what is this saying?

bradykinin is a physiologically and pharmacologically active peptide of the kinin group of proteins, consisting of nine amino acids.