AP Biology Unit 1 - Vocabulary

Standard Error of the Mean

Used to assess how accurately the sample mean estimates the population mean.

Standard Deviation

The aveage amount by which all the values deviate from the mean (measures spread of data).

Range

The difference between the lowest and highest limits of something.

Mean

Average set of numbers.

Median

The middle number in a set of data when numbers are put in order from smallest to largest.

Mode

The number that shows up the most in a data set.

Spread

How far apart or clustered together data points are.

Variance

The degree to which data are spread out in a data set.

Null Hypothesis

A statement predicting that the independent variable will have no significant effect on the dependent variable.

Alternative Hypothesis

A statement predicting a specific, measurable relationship or effect between the variables.

Polarity

Unequal sharing of electrons and overall charge is unevenly distributed.

Cohesion

The hydrogen bonds that hold the substance together.

Adhesion

The clinging of one substance to another.
Ex: H-bonds to cell walls

Surface Tension

Measure of how difficult it is to stretch or break the surface of a liquid.

Specific Heat

Heat of Vaporization

Evaporative Cooling

Solvent

Solute

Hydrophilic

Hydrophobic

Buffer

Acid

Base

Ocean Acidication

Essential Elements

Trace Elements

Organic Compound

Inorganic Compound

Macromolecules/Biological Molecules

Hydrocarbon

Isomer

Structural Isomer

Cis-trans Isomer

Enantiomers

Polymers

Monomers

Hydrolysis

Dehydration Reaction

Monosaccharide

Disaccharide

Polysaccharide

Glycosidic Linkage

Fatty Acid

Saturated Fat

Unsaturated Fat

Phospholipid

Triglyceride

Trans Fats

5’ End

3’ End

Antiparallel

Deoxyribose

Ribose

Double Helix

Phosphate Group

Nitrogenous Base

Pyrimidine

Purine

Polypeptide

Amino Acid

Peptide Bond

Functional/R Group

Amino/Amine Group

Carboxyl Group

Nucleotide

Primary Structure

Secondary Structure

Tertiary Structure

Quaternary Structure

Hydrophobic Interactions

Disulfide Bridge

Denaturation