Unit 1 Exam Study Guide
Unit 1 Exam Study Guide Bio 120-001
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This 3 page Study Guide was uploaded by Huda Khan on Monday July 27, 2015. The Study Guide belongs to Bio 120-001 at Towson University taught by Partain in Spring 2015. Since its upload, it has received 489 views. For similar materials see Principals of biology in Biology at Towson University.
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Date Created: 07/27/15
Unit 1 Biology Study of life What is life Individuals 1 Organized Cellsmolecules taxonomy 2 Energy getuse 3 Genetic Information DNA inheritance 4 Continuity Same molecules Unity of origin 5 Reproduce sexualasexual 6 Homeostasis Groups 1 Diversity 2 Evolution Scienti c Method 1 2 3 Observation Question Hypothesis How things work Must be testable and falsi able can be disproven Experiment Test your hypothesis Manipulate one variable at a time and control others as much as possible Controlled Do not get experimental atlternative hypotheses as possible Random assignments means there difference between the groups treatment Eliminate as many is unlikely to be a systematic Limited knowlede of experimental hypothesis Limited knowled g of experimental hypothesis 1 9 No knowledge of which quot Mo knowledge of which group he or she belongs to group participants helping to Elam m M Llre as Gamer ism m VIErm Braden Statistics quotStatisti cally signi cantquot result is very unlikely due to chance difference between the experimental and control groups result likely represents a true difference Sample size number of individuals in the experimental amp control groups The more participants there are in a study the more likely it is that researchers will see a true effect of an experimental treatment even if it s very small Results Hypothesis rejected or supported Never 100 sure but we can gather evidence if it is reasonably truefalse Correlation Studies look at existing data and try to determine if there is a relationship or correlation between the variables when an experiment is not ethical or doable Correlation does not signify causation Scienti c Theory Abundance of evidence Wellsupported by observation and experiment Nonscienti c Theory a theory is the same as a hypothesis an untested idea based on little information VVater Terminology Polar having an distribution of electrical charge will Nonpolar having a distribution of electrical charge These in water Hydrophobic compounds that do not dissolve readily in water oi Hydrophilic compound that dissolve readily in water salt Hydrogen bonds form breaking ionic bond Amphathic a molecule having both hydrophobic and hydrophilic regions Water is It is a polar molecule Hydrogen bonds weak molecular bond from negative charged atom oxygen and a partial positive charge from a hydrogen bond Physical Properties Liquid at moderate tempertures most other molecules are gases at its size Water coheres stick Dissolves other substances due to the polarity Water molecules adherecings Can hold hear relative to its volume Molecules expand when ice because they are less dense than liquid so it oats pH Liquid drain learner if Basic pH N neutral pH Acidic pH Shalom ml r O 2607 F39earsanu Balsan1 Bell and gmia tB n Upper Fliu ir quot31 Jersey 0739453 Oragnic Carbon based molecules and be living lnorganic Nonliving
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