Khan Academy Bio Intro

Metabolism

The sum of the total biochemical reactions occurring in an organism

Anabolism

Complex molecular organisms made from simpler ones

Catabolism

Opposite of Anabolism; Made simpler from complex

Homeostasis

Maintenance of a stable internal environment to live

Ex. A jackrabbit releasing heat through the surface of its large, thick ears.

Asexual

Single Parent organism

Sexual

Two parents organisms

Water

Made up of Two hydrogens with a positive charge (δ+) and One Oxygen with a negative charge (δ-)

Hydrogen Bond

When a hydrogen atom is covalently bonded to an electronegative atom (Allows for the fluidity of water and makes up its many properties)

High Heat Capacity

The heat of vaporization

Cohesion

Water can stick to molecules

Adhesion

Water can stick to others

Hydrophilic

Water-loving

Ex. NaCl (Sodium Chloride aka Table salt)

Hydrophobic

Water-fearing

Ex. Hydrocarbons or Hexane ions

Dissociation

A process in which a compound or molecule breaks apart to form ions

Meniscus

A hump or lump in the water in the container

Capillary Action

Increased adhesion

Ex. Paper towel absorbing water

Surface tension

Results from the bonds tightening and packing at the surface