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11 Cards in this Set
- Front
- Back
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Organization of Life
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Subatomic Particles
Atom Molecules & Compounds Sub-cellular Organelles Cells (Lowest level containing all properties of life) Tissues Organs Organ Systems Multicellular organism Population Community Ecosystem Phylum Biosphere-planet (largest) |
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Cell Theory
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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) |
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Two Types of Cells
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1) Prokaryote-before kernal (nucleus)
- Bacteria 2) Eukaryote-with kernal (nucleus) - Protists, plant, fungi, animals |
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First person to observe micro organisms through a microscope?
Coined the term cell? |
Anton Van Leeuwenhoek (1600's)
Robert Hooke (1665) |
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Cell Arangement
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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 |
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Other life properties
[ALL living things have:] |
-movement
-order -respond to stimuli -homeostasis -reproduce -growth and development -evolve and adapt |
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Biodiversity
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-1.5 million species have been described
-5-30 million are beleived to exist |
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Carl Linne?
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-Father of taxonomy, classifing and naming organisms
-created binomial system of nomenclature |
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Taxonomy Hierarchy
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-Domain (most inclusive, less specific) -DUMB
-Kingdom - KIDS -Phylum -PICK -Class - CANDY -Order - OVER -Family - FLAMING -Genus - GRILLED -Species (less inclusive, most specific) - STEAK |
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Scientific Method
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[--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) |
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4 features ALL cells have:
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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 |
