types of hormones

two types

1. proteins (amino acid based)

2. lipids (steroid)

what are protein hormones

made of long chains of amino acids that are involved in gene expression

proteins

rapid onset and short duration

lipids

slow onset and long duration

what are lipid hormones

made of dietary precursors like cholesterol and fatty acids

where are lipid hormones found

within cell

where are protein hormones found

in bloodstream