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Bio1710Ex1
Dewey Exam 1 - UNT
| Question | Answer |
|---|---|
| Emergent Properties | Traits that a system contains, but individual parts do not |
| Reductionism | Breaking a system apart and studying it's individual parts |
| Systems Bio | Studying a system by modeling how parts interact |
| Transformation of energy: | Always comes in as light and leaves as heat |
| Form meets function | Structure and function are closely related |
| Cell | Smallest thing that can be called "alive" |
| Membrane | Encloses cells |
| DNA | Uses this as genetic info, blueprint of life |
| Colonies | Groups of cells |
| DNA carries: | Carries information that determines on organism |
| Regulation of Bio-Systems | Feedback Loops/mechanisms |
| Negative feedback | Product up process down; ATP production; Super common |
| Positive Feedback | Product up process up; Already making, but needs more; EX: Blood cotting; |
| Industrial Melanism | Phenomenon in which darker individuals predominate over lighter ones |
| Taxonomy | Organisms are classified based on similarities |
| Nested hierarchy | Grouping of organisms from most generic to most specific |
| 3 Domains of life | 1. Bacteria 2. Archaea 3. Eurkarya |
| Eukarya | Domain consisting of protists, fungi, animalia, plantae |
| Process of Science (1-4) | 1. Observation leads to question 2. Leads to Hypothesis 3. Leads to experiment 4. Leads to conclusion that supports or denies hypothesis |
| Iterative Hypothesis | Hypothesis can be changed and revised throughout the experiment |
| How many variables are tested each experiment? | Only 1 variable |
| Dependent Variable | What investigator measures in experiments |
| Independent Variable | What is changed in the experiment |
| Deductive reasoning | Reasoning that uses general principles to make predictions |
| Inductive reasoning | Reasoning that uses observations to develop general conclusions |
| Matter | Anything that takes space and has mass |
| Nucleus Charge | Always positive |
| Measurement weight of 1 atom | 1 Dalton |
| Atomic Number means # of what in an atom? | Number of Protons in an Atom |
| Mass Number means # of what in an atom? | Sum of Protons and Neutrons |
| Isotope | Different atomic forms of a single element with varying numbers of Nuetrons |
| Radioactive Isotopes | Nucleus decays spontaneously giving off particles and energy |
| 4 Elements that make 96.3% of Human Weight | Oxygen, Carbon, Hydrogen, Nitrogen |
| Strong bonds: | Ionic, Covalent |
| Cation: | Positively charged atom |
| Anion: | Negatively charged atom |
| Non-polar covalent bonds | Equal sharing of electrons |
| Polar covalent bonds | Unequal sharing of electrons |
| Hydrogen bonds | weak bonds that hold two or more polar covalent compounds together |
| Van Der Walls | -Weak forces that hold non-polar covalent compounds - Result from asymmetric distribution of electrons in their outer shell |
Created by:
bpiatek91
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