Matter

anything that occupies space and has mass

Atom

smallest unit of matter

Nucleus

Central core of atom

Proton

Positively charged particle in nucleus

Neutron

Uncharged particle in nucleus

Atomic number

Number of protons in nucleus

Atomic mass

Number of protons and neutrons combined

Different types of bonds

Ionic, water, covelant

Cell

smallest structural unit

4 quadrants of the body

RUQ, LUQ, RLQ, LLQ

homeostasis

balance of the body

Ribosome

protein factories

R.E.R

Rough Endoplasmic Reticulum, it collects, folds, and transports proteins made by ribosomes

S.E.R

Smooth Endoplasmic Reticulum, it makes new membrane for the cell

Golgi apparatus

it's a chemical processing and packaging center

Mitochondria

Mitochondria power plants of the cell

Lysosomes

it digest food and substances that invade the cell

Centrosome

they have an important role in cell division, microtubule-organizing center of cell