AP BIO QUIZ 1 (BIOSTATS, CHEM, WATER PROPERTIES)

95% confidence interval

An interval in which you can be 95% sure number lies between

What is standard deviation?

How much variation is in a data set

Standard error of the mean (S.E.x) formula

S / square root of n

95% CI formula

Mean ± (2 x S.E.x)

4 groups of biomolecules

Carbohydrates, lipids, proteins, nucleic acids

All bimolecules contain C,H,O. But which two contain N?

Proteins and nucleic acid

Which bio molecule contains S

Protein

Which bio molecule contains P

Nucleic acid and phospholipid

What determines an atoms shape

Valence electrons

Strong bonds

Ionic bonds, covalent bonds

Types of covalent bonds

Nonpolar covalent (diatomic and C-H) and polar covalent

How to know if something is a hydrogen bond

Polar molecule with H bonded to N or O

Van Der Waals forces

Temporary bonds form anytime molecules are really close, important between nonpolar molecules like phospholipids

Properties of water

Polar, cohesive and adhesive, excellent solvent, solid water less dense than liquid, high specific heat capacity, high heat of vaporization