Human Physiology Chapter 2: Molecular Interactions

define an organic molecule

molecules that contain carbon

what is a polymer?

large molecules of repeating units called monomers

define a biomolecule

organic molecules associated with living organisms

list the different biomolecules

carbohydrates lipidsproteins nucleotides (polymer = nucleic acid)

what is the most abundant biomolecule

carbohydrate

what are Monosaccharides

simple sugars (glucose, fructose, galactose)

what is the most diverse biomolecule

lipid

lipids are ______ and ________

nonpolar ; hydrophobic

_________ are made of glycerol and fatty acids

lipids

Define phospholipids

these are lipids that contain a phosphate group that contains both phosphorous and nitrogen.important for cell membranes

A _______ acts like a hormone

steroid

Define an eicosanoid

regulatory lipid for cells

monoglyceride

a glycerol molecule with one fatty acid attached

diglyceride

glycerol + 2 fatty acids

triglyceride

glycerol + 3 fatty acids

what is the most versatile biomolecule

protein

Define peptide bond

joining of 1 amino group of 1 amino acid to the carboxyl group of the other

what are the 3 groups that all amino acids have attached to them

carboxyl group (-COOH)amino group (-NH2) hydrogen attached to the same carbon

how many amino acids are found in oligosaccharides

2-9

how many amino acids are found in polypeptides

10-100

how many amino acids are found in proteins

> 100 amino acids

what are the different types of protein structure

primary, secondary, tertiary, quaternary

what makes up a nucleotide

nitrogenous base sugar ribose phosphate

What is a purine?

double-ringed nitrogenous base; adenine and guanine

What is a pyrimidine?

single-ringed nitrogenous base; thymine and cytosine

ATPbase? sugar? phosphate group?

adenine ribose 3 phosphate

ADP base? sugar? phosphate group?

adenine ribose 2 phosphate

cAMP base? sugar? phosphate group?

adenine ribose 1 phosphate

NADbase? sugar? phosphate group?

adenine2 ribose 2 phosphate has NICOTINAMIDE

FAD base? sugar? phosphate group?

adenine ribose 2 phosphate has RIBOFLAVIN

conjugated molecules

Molecules composed of two or more types of organic molecules covalently bonded togetherlipoprotein = protein + lipid glycoprotein = protein + carbohydrate

Define glycosylated

carbohydrates are attached to another biomolecule