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38 Cards in this Set
- Front
- Back
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Biology |
The scientific study of life |
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Properties of Life |
Order Energy processing Evolutionary adaptations Growth and development Response to environment Reproduction Regulation |
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5 themes |
Organization Information Energy and matter Interactions Evolution |
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Organization theme |
New properties emerge at successful levels of bio organization |
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Levels of bio organization |
Molecules Organelles Cells Tissue Organs Organisms Populations Communities Ecosystems Biosphere |
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Molecule |
Chemical structure of 2 or more atoms held together by covalent bonds
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Cell |
Simplest unit of life |
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Organ |
Body part made of multiple tissues |
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Tissue |
Group of cells that work together, performing a special function |
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Emergent properties |
arrangement and interaction of parts as complexity increases New properties emerge that were not there before ( salt example) See novel properties emerge at each new level that are absent from the previous one Sodium and chlorine are not safe but when combined emerge as a new property safe to consume |
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Systems biology |
Analyzing the interactions among its parts. Reductionism |
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Structure and function |
Correlated. Knowing the function of something increases insight into its structure and organization. Think of the hummingbirds beak and ability to hover |
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Eukaryotic cell |
Contains membrane included organelles. Has a nucleus |
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Prokaryotic cells |
Lacks a nucleus. No membrane enclosed cells. |
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DNA |
Chromosomal structures with genetic info |
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Genome |
The library of genetic instruction |
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Information theme |
Life process involve genetic information |
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Energy and matter theme |
Life requires the transfer and transformation of energy and matter |
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Blank flows through the ecosystem |
Energy |
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Blank cycles within an ecosystem |
Chemicals |
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One way flow of energy |
Light is converted into heat |
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Interaction theme |
From molecules to ecosystems, interactions are important |
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Feedback regulation |
Negative and positive Reduce internal stimulus (insulin and glucose absorption) Speed up production (platelets to clot) |
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Evolution theme |
Evolution accounts for unity and diversity of life |
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Evolution |
Adaptation to environment |
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Unity and diversity |
Cilium of paramecium and lung Birds but different-penguins can swim, beaks are sharper for tearing |
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Charles Darwin origin of species natural selection |
Cause for diversity Helps to adapt to environment (evolution) Bird example again |
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Inquiry |
Search for information and explanation of natural phenomena |
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Qualitative vs quantitative |
Recorded descriptions. Observations. Measurable. Frequency and duration. |
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Inductive reasoning |
Small to big. Derive a generalization from number of observations |
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Seductive reasoning |
Big to small. Usually predictions of more specific info. “Of blank then blank” |
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Hypothesis |
Explanation based on observations and assumptions that lead to a testable prediction |
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Science is not linear |
Back (Definition) |
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Controlled experiment |
Contains one or more control groups |
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Independent variable |
The factor being manipulated by researchers |
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Dependent variable |
Factor being measured |
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Scientific studies... |
Team approach Need to be re-testable Build on the work of others |
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Science and technology |
Science-understand natural phenomena Tech-apply scientific knowledge for some specific purpose |
