RQ: The Chemistry of Life

____, H, O, N make up 96% of living matter.

• F

• Na

• P

• C

Protons have a _________ charge

• negative

• positive

• neutral

A ____________ bond occurs when electrons are shared by two atoms.

• hydrogen

• ioninc

• covalent

• nuclear

Water molecules are

• polar

• nonpolar

• positively charged

• negatively charged

________________________ are long chain molecules made of repeating subunits called monomers.

• Proteins

• Polymers

• Proteases

• Multimers

_____________________ make up cell membranes and the so-called bilayer.

• Deoxyribonucleic acids

• Polysaccharides

• Triglycerides

• Phospholipids

There are four levels of ________________ structure.

• protein

• lipid

• carbohydrate

• nucleic acid

The process by which a polymer is split into its monomers is called

• dehydration

• hydrolysis

A protein is _____________ when it loses its shape and ability to function because of hear, a change in pH or some other disturbance.

• dehydrated

• neutralized

• denatured

• hydrolyzed

The two types of fatty acids are _______________ and _________________.

• trans-saturated

• saturated

• unsaturated

• cis-saturated