BSC 108 Test 1 | 100% Correct | Verified |
2024 Version
What is biology? - the scientific study of life
What are the 3 domains? - Eukarya, Bacteria, Archaea
What is the scientific process? - a formal process of inquiry
What are the components of the scientific method? - observation, question, ...
BSC 108 Test 1 | 100% Correct | Verified |
2024 Version
What is biology? - ✔✔the scientific study of life
What are the 3 domains? - ✔✔Eukarya, Bacteria, Archaea
What is the scientific process? - ✔✔a formal process of inquiry
What are the components of the scientific method? - ✔✔observation, question, hypothesis, prediction,
experiment, results
What are the components of a good hypothesis? - ✔✔should be specific; usually "if, then" statements
What is a theory in science? - ✔✔a broad and comprehensive statement about the world that is
supported by the accumulation of a great deal of verifiable evidence; much broader in scope than a
hypothesis
What are the limits of science? - ✔✔Science is not the only way to understand nature and science
cannot address every question posed by man
What is an atom composed of? - ✔✔subatomic particles
What are the characteristics of neutrons, protons, and electrons? - ✔✔neutrons - no charge
protons - positive charge
electrons - negative charge
What is an ion? - ✔✔an ion is an electrically charged atom, resulted by gaining or losing electrons
, What is the difference between an ion and isotope? - ✔✔an ion involves a difference in number of
valence electrons; an isotope involves a difference in number of neutrons
What is the difference between atomic number and atomic mass? - ✔✔atomic number = number of
protons
atomic mass = number of protons + number of neutrons
How can you determine atomic number from atomic mass? - ✔✔atomic number is above element
symbol, atomic mass is below element symbol
What are the different types of chemical bonds? - ✔✔ionic, covalent, hydrogen
How are ionic bonds formed? - ✔✔transferring of outer-shell (valence) electrons
How are covalent bonds formed? - ✔✔sharing of outer-shell (valence) electrons
How are hydrogen bonds formed? - ✔✔two hydrogen atoms joined to one oxygen by single covalent
bonds
Which bond is the strongest? - ✔✔covalent bond
Which bond is the weakest? - ✔✔hydrogen bond
What is the difference between an ionic bond and a covalent bond? - ✔✔ionic bond involves the
complete transfer of electrons; a covalent bond involves the sharing of one of more pairs of valence
electrons
What is a solution? - ✔✔a liquid that is a homogeneous mixture of 2 or more substances
What is salt water an example of? - ✔✔a solution
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