Biological Levels Of Organization Flashcards
1
Q
Subatomic particles
A
Protons, neutrons and electron
2
Q
Atom
A
Smallest unit of matter
Carbon, hydrogen, oxygen and nitrogen
3
Q
Molecule
A
Two or more atoms bound together
Co2, H2O, NaCl
4
Q
Macromolecules
A
Large complex molecule
Protein, lipid, carbohydrates, DNA
5
Q
Organelle
A
Structure in cell that carry out specific functions of the cell
Nucleus, ribosome, mitochondria
6
Q
Cell
A
Smallest unit of life
Red blood cell, neuron
7
Q
Tissue
A
Group of cells that work together
Epithelium, connective tissue, muscle, nerve
8
Q
Organ
A
Discrete structure containing two or more tissue types
Heart, lung, brain
9
Q
Organ system
A
Group of functionally related organs
Integumentary, nervous, circulatory
10
Q
Organism
A
Individual animal, plant or single cell life form
Human, bacteria
Most complex level of anatomical organization
