Biology
Chemistry of Life – Basic Chemistry
CHAPTER 2
QUESTIONS FOR TEXT NOTES
Don’t forget to make your outline first!!!
-what is everything in the universe made of?
-define matter.
-define atom
-what determines the structure and behavior of matter.
-what is the size of an atom?
-what instrument would be used to view an atom?
-what are the 3 parts of an atom
-what are the electrical charges of the 3 particles that make up an atom?
-copy figure 2-2
-which subatomic particle is responsible for how atoms will react with other atoms?
-define element
-how many element occur naturally in nature?
-define atomic number
-define isotope
-define mass number
-define radioisotope.
-how are radioisotopes useful in biology?
-define compound
-define chemical bond
-what does a chemical formula show?
-do an example of a chemical formula
-define structural formula and do an example
-what determines how an element will combine?
-when are elements stable?
-define ionic bond
-are ionic bonds weak or strong?
-describe the biological importance of ionic bonds
-define ion
-define cation
-what is the charge on an atom that has lost an electron?
-define anion
-what is the charge on an atom that has gained an electron?
-list 2 ways ions are important in Biology
-define covalent bond
-are covalent bonds weak or strong?
-describe the biological importance of covalent bonds
-define molecule
-define hydrogen bond
-are hydrogen bonds weak or strong?
-describe the biological importance of hydrogen bonds
-define mixture.
-define solution.
-define solute.
-define solvent.
-define concentration of a solution.
-what can solutions be a mixture of?
-what are most biological solutions?
-define aqueous solution.
-define suspension
-define colloids.
-how can colloids exist?
-define sol.
-define gel.
-what does the health and functioning of living organisms depend on?
-what is acidity?
-define acid solution.
-define base solution.
-define pH scale.
-list examples of different pH levels in the human body (figure 2-9)
-define chemical reaction.
-what happens when bonds are broken?
-what happens when bonds are formed?
-define chemical equation.
-define reactant
-define product
-what does the arrow in a chemical equation point to
-give and example of a chemical equation and identify the reactants and product/s
-what does it mean when there are two arrows going in both directions.