 |
What characterizes
a prokaryotic cell? |
|
Why do experiments
need a control? |
|
Why do scientists
use the scientific method to study environmental problems? |
|
List the hierarchy
of organization for living things & for classification. |
|
Why is evolution
the "biological theme that ties together all the others"? |
|
If neon has an
atomic number of 10, how many valence electrons does it have & what
does this tell you about this element? |
|
List properties of
all life forms. |
|
In which kingdom
would you find the E. coli bacterium? |
|
What must be done
before a hypothesis is proven to be true? |
|
What composes all
living things? |
|
How do isotopes
differ from each other? |
|
If an element has
its valence electron shell filled, what is true about its reactivity? |
|
How are molecules
formed? |
|
How are ionic
bonds formed? |
|
How do polar
covalent bonds form? |
|
What type of weak
bond exists between water molecules? |
|
What type of bond
forms from unequal sharing of electrons between atoms? |
|
How does carbon-12
differ from carbon-14? |
|
What type of bond
forms between 2 atoms that are equally electronegative? |
|
What determines
the reactive properties of an atom? |
|
The sum of protons
& neutrons in an atom? |
|
Determine the
number of valence electrons for carbon & hydrogen. |
|
Determine the
number of neutrons for sulfur. |
|
How can you tell
if an atom has the same valence as carbon? |
|
What happens to
ionic bonds in water? |
|
Name 2 isotopes of
hydrogen. |
|
Sketch the
electron configuration of oxygen & neon. |
|
When reactions
continue with no effect on the concentration of reactants & products,
what is this called? |
|
When do Van der
Waal interactions occur? |
|
What would be the
pH for acids, bases, neutral solutions? |
|
What type of bond
occurs when the partial negative charge of one water molecule is attracted
to the partial positive charge of another water molecule? |
|
What property of
water is probably the most important for the functioning of organisms at
the molecular level? |
|
In which type of
solutions would there be a greater concentration of hydroxyl ions ---
acids or bases? |
|
In which type of
solutions would there be a greater concentration of hydrogen ions ---
acids or bases? |
|
What is the
difference in hydrogen ion concentration between a solution with a pH of 3
and a solution with a pH of 5? |
|
Explain how the
formation of ice during cold weather helps to temper the transition to
winter. |
|
Be able to explain
how to make a 1 Molar solution of glucose. |
|
Which end of the
water molecule is electronegative? |
|
What determines
the cohesiveness of water? |
|
If a compound
contains hydroxyl groups, is it water soluble? |
|
Which element is
the most abundant in the dry weight of humans? |
|
What type of
isomers have variations in their arrangement around a double bond? |
|
How do glucose
& fructose differ? |
|
What type of bonds
do carbon atoms form? |
|
Be able to
recognize these functional groups --- carbonyl, sulfhydryl, methyl,
phosphate, amino, carboxyl, & hydroxyl. |
|
What functional
group is found in alcohols like glycerol? |
|
Which monomer
makes the macromolecule it forms an organic acid? |
|
Draw the
structural isomers for butane. |
|
What lipid makes
up biological membranes? |
|
How are alpha
helix proteins stabilized? |
|
What
chemical reaction is used to synthesize macromolecules like polypeptides
& starch? |
|
How are DNA &
RNA different? |
|
Sketch a fatty
acid. |
|
What is the basic
structure of a steroid? |
|
Is polymerization
anabolism or catabolism? |
|
Show how a
dipeptide is formed. |
|
What causes the
tertiary structure of proteins? |
|
What are the 2
forms at the secondary level of protein structure? How do they differ? |
|
What reaction must
occur to break a peptide bond? |
|
What structural
feature allows DNA to replicate itself? |
|
What does it mean
if the 2 strands of DNA are complementary? |
|
Which
macromolecule yields the greatest amount of energy? |
|
Describe a
nucleotide. |
|
Name the purines
& pyrimidines. |
