Levels Of Human Structure Flashcards
Define: subatomic particles
Protons, Neutrons, electrons.
Name the 9 levels of human structure.
Subatomic particles, atoms, molecules, organelles, cells, tissue, organ, organ system, organism
Define: Atom
A unit of matter.
Define: molecules
Two or more atoms bonded together.
Define: organelles
“little organs” that carry out functions within a cell.
Define: cells
The smallest living unit.
- uses energy (glucose)
- grows (splits)
Define: tissue
A group of similar cells which perform a specific function.
Define: organ
A collection of two or more tissue types working together on same function.
Define: organ system
A group of organs with same basic function.
Define: organism
Complete individual composed of all organ systems.
Most Common Molecule.
H20
67% of molecules
Largest Molecules are called?
Macromolecules.
This includes: Proteins (20%) , Lipids (10%), Carbohydrates (3%)
What is glycogen made of?
Many glucose molecules. It is stored in the muscles and liver.
Organ Systems
- Integumentary -Circulatory -Male Reproductive
- Skeletal -Lymphatic -Female Reproductive
- Muscular -Respiratory
- Nervous -Urinary
- Endocrine -Digestive
