BIOL 133 Week 1 Quiz | Assignment Help | American Public University System
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BIOL 133 Week 1 Quiz | Assignment Help | American Public University System
Week
1 Quiz 2
Question
1 of 10
Why
does water boil at a higher temperature than butter, which is non-polar?
o
breaking of hydrogen
bonds requires a lot of energy
o
removing hydrogen from
the liquid requires a lot of enegy
o
energy is used to cool
the water as it undergoes from liquid to gas
o
energy is consumed to
form hydrogen bond
Question
2 of 10
Before
the battery in the car is jumped, the individuals notice the hook-ups on the
battery are corroded by acid. What substance can be used to clean the acid?
o
orange juice
o
baking soda
o
urine
o
black coffee
o
lemons
Normal
(homeostatic) pH level of blood serum’s pH is around 7.4. Carbonic acid is
released in the blood to help maintain a pH when the blood has high hydroxyl
levels. This would cause pH to change from
o
basic to acidic
o
basic to neutral
o
neutral to basic
o
acidic to 7.4
o
basic to 7.4
Question
4 of 10
Carbon
represents less than 1% of the Earth’s crust, but is 18% of the composition of
living things. Why?
o
Living organisms
sequester carbon to lower its toxicity to their cells.
o
Cytoplasm is composed
largely of a liquid form of carbon.
o
Cell membranes are
composed of layers of graphite.
o
The unique bonding
properties of carbon allow it to create a huge variety of biological molecules.
o
This is a measure of
waste gases like CO2 and CH4.
Of
the following statements about the periodic table, which one is INCORRECT?
o
The position of an
element in the periodic table gives you a quick indication of what properties
it has and how it is likely to behave.
o
The horizontal rows of
the table, or periods, indicate chemical reactivity. For instance, the bottom
row represents the unreactive noble gases.
o
Often the periodic table
is color-coded to indicate similar types of elements. For instance, alkali
metals, transition metals, nonmetals, or noble gases
o
As you move across the
periodic table, it indicates the gradual filling of electron shells. When the outer
shell is full of electrons, the element is a noble gas.
o
The vertical columns, or
groups, indicate elements with similar chemical properties.
Question
6 of 10
o
methyl
o
carbonyl
o
hydroxyl
o
amino
o
sulfhydryl
The
equation below represents a(n)____________________.
2NO2 ↔ N2O4
o
irreversible reaction
o
reversible reaction
o
reactant
o
product
o
enzymatic reaction
Question 8 of 10
Carbon-12,
Carbon-13 and Carbon-14 are examples of
o
isomers
o
molecules
o
ions
o
isotopes
o
enantiomers
After
11,200 years, approximately _____________________ carbon-14 would remain in a
sample of wood.
o
75%
o
50%
o
25%
o
12.5%
Question
10 of 10
Chemistry
and physics are fall into which field of science? Select all that apply.
o
natural science
o
physical science
o
life science
o
social science
o
hard science
USA 
India