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11 Cards in this Set

  • Front
  • Back
Organization of Life
Subatomic Particles
Molecules & Compounds
Sub-cellular Organelles
Cells (Lowest level containing all properties of life)
Organ Systems
Multicellular organism
Biosphere-planet (largest)
Cell Theory
Divised by Mathias Schleiden and Theodore Schwann (1839)

1) All living things are composed of one or more cells
2) Cells only come from other cells
3) Cell-(Lowest/Smallest entity capable of life functions)
Two Types of Cells
1) Prokaryote-before kernal (nucleus)
- Bacteria
2) Eukaryote-with kernal (nucleus)
- Protists, plant, fungi, animals
First person to observe micro organisms through a microscope?

Coined the term cell?
Anton Van Leeuwenhoek (1600's)

Robert Hooke (1665)
Cell Arangement
1) Unicellular- entire organism consists of a single cell
2) Colonial- several cells joined together, little separation
3) Multicellular- several cells joined together, high degree of cellular specialization
Other life properties
[ALL living things have:]
-respond to stimuli
-growth and development
-evolve and adapt
-1.5 million species have been described
-5-30 million are beleived to exist
Carl Linne?
-Father of taxonomy, classifing and naming organisms
-created binomial system of nomenclature
Taxonomy Hierarchy
-Domain (most inclusive, less specific) -DUMB
-Kingdom - KIDS
-Phylum -PICK
-Class - CANDY
-Order - OVER
-Family - FLAMING
-Genus - GRILLED
-Species (less inclusive, most specific) - STEAK
Scientific Method
[--A stepwise process scientists use to derive answers to questions]
6 Steps:
- Make an observation
- Ask a question
- Form a hypothesis (Inductive reasoning)
- Make a prediction (deductive reasoning)
- Test the Hypothesis (must be repeated)
- Draw Conclusions (based on exp. results)
4 features ALL cells have:
1) Plasma Membrane- defines outer boundary of living material
2) Cytoplasm- everything between the plasma membrane and the nucleus (75-85% water)
3) Genetic Material- DNA
4) Ribosomes- manufactures proteins