Newton’s First Law

An object at rest will stay at rest while an object in motion will stay in motion unless acted on by an external force.

Amino Acid

The organic compounds that combine, via peptide bond, to form proteins.

Amino acids must contain both an amino functional group and a carboxylic acid functional group bonded to the alpha carbon. The variation in amino acid composition results from the side chain that is also bonded to the alpha carbon. The fourth bond on the alpha carbon is a hydrogen.


In geometry:
A line that intersects a curve in at least 2 points.

In trigonometry:
In a right angle triangle, the secant of an angle is the length of the hypotenuse divided by the length of the adjacent side.


The application of a force on an object that results in the displacement of the object.

The force must be applied, at least in part, in the same direction as the displacement.

Cellular Respiration

A series of metabolic reactions, taking place at that the cellular level, that convert organic matter (food) into a usable form of energy.

There are two types of cellular respiration: aerobic (in the presence of oxygen) and anaerobic (without oxygen).