Anatomical Hierarchy of Complexity Flashcards
Define an Atom:
The smallest unit of matter
Ex: Carbon, Hydrogen, Oxygen
Define a Molecule:
Particles composed of at least 2 atoms
Ex: CO2, H2O
Define a Macromolecule/Compound:
Large complex molecule
Ex: DNA, Protein, Lipid
Define Organelles:
Structures in cells that carry out different roles
Define Cells:
The smallest unit of LIFE
Ex: erthrocyte, osteoblast, neuron
Define Tissue
Groups of similar cells that perform a function
Ex: Blood cells, Nerve cells
Ex: Muscule Tissue, Nerve Tissue
Define Organ System:
Groups of organs w/ a collective function
Ex:Digestive system
Stomach
Pancreas
Intestines
Define organ;
Composed of 2 or more tissue types
Ex: Heart, Lungs,Brain
Define Organism:
Individual, animal, plant, single-cell life form