Biology 111 Exam 1 (Chapters 1-5)
Biology - Science that focuses on the study of life
Mirrors Function - Structure water's polar covalent bonds mean it can form hydrogen bonds giving rise to properties such as an ability to modulate temp ad act as a solvent
Two main processes of scientific inquiry biology - Discovery Based Science and Hypothesis Based Science
Discovery Based Science - Describes natural structures/processes through observation/data analysis and inductive reasoning
Inductive Reasoning - Generalization based o a large number of specific observations
Hypothesis Based Science - Asks specific questions that involve test and hypothesis
Diversity is key to - Survival
All life has - Matter
Matter - Anything that has mass and takes up space
Elements - Substances that cannot be broken down by chemical reactions
O - Oxygen
C - Carbon 1 / 2
H - Hydrogen
N - Nitrogen
Trace Elements - Required in small amounts in the body
Compounds - Two or more different elements in a fixed ratio
Atom - Smallest unit of matter that retains the properties of an element
Positive Charge - Proton
Negative Charge - Electrons
No Charge - Neutrons
Electrons - Important for life, determine how chemicals behave, and movement power life
Isotopes - Differ in the number of neutrons in the atomic nucleus Same number of portions Used to carbon date fossils
Valence = 1 - Hydrogen
Valence = 2 - Oxygen
Valence = 3 - Nitrogen
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