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18 Cards in this Set
- Front
- Back
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7 properties of life
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1. order
2. evolution 3. response 4. regulation of enviroment 5. energy process 6. growth and development 7. reproduction |
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Hierarchy of structural levels in biological organization
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1. biosphere
2. ecosystem 3. community 4. population 5. organism 6. organ 7. tissue 8. cells 9. molecules |
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biosphere
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all enviroment on earth inhabited by life
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ecosystem
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living & non- living components.
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community
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all species in a defined area
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population
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all individual of a single species in an area.
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organism
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individual life forms.
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organ and organ systems
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assist the organism to function and live.
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tissue
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a group of similarcells working togetherfor a particular function.
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cells
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fundemental unit of structure and function of life.
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organells
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fuctional component making up cells.
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molecules
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2 or more atoms bound together.
1. DNA a. makes up part of chromosomes/ genes b. double helix consisting of 4 different nucleotides c. codes for protien builders which are structure and tools of cells. |
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2 major dynamic process of an ecosystem
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1. cycleing of nutrients
2. energy flows thru the system a. producers- concumers- decomposers heat E given off @ each E conservation. |
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prokarotic cells vs. eukaryotic cells
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prokaryotic= regulatory membrane, no nucleus, DNA, nucloid region, smaller
eukaryotic cells= regulatory membrane, organells, membrane enclosed, nucleus contains DNA, larger |
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Emergent properties
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I. "the whole is greater than sum of its parts"
A. specific arrangement and interaction of matter 1. enables life properties not found otherwise |
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delemma of reduction
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I. studing componets of complex systems
A. to understand the complexity of the system B. disrupt emergent properties |
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regulatory machenisms: Positive feed back and Negative feed back
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-Negative feed back
a. most common form of regulation b. accumulation of an end product slows down the process responsible for generation of the product. c. ATP, insulin -Positive feed back a. less common form of regulation b. end product speed up the its production c. platlet attraction, pregnancy contractions |
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4 classifiction of life
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I. diversity w/ in a non- species grouping
II. diversity across taxa III. 3 domains of life a.bacteria prokarotic cells unicellular (most). b.archela love salt, prokaryotic cells, unicellular c.eukarya cells have a membrane have membrane bound organells, some are unicellular, multicellular kingdoms w/ different modes of nutrition. fungi= decomosers plantae= photosynthesizers animalia= ingest others IV.Unity in the Diversity of Life |
