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car
bohydra
tes
nucl
eic
acid
s
pro
tein
s
all
of th
ese
25% 25%25%25%
Which of the following compounds may be polymers?
1. carbohydrates
2. nucleic acids
3. proteins
4. all of these
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wat
er
org
anic
hom
ogeneo
us
bio
logi
cal
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Carbon compounds that come from living organisms are called _____ compounds.
1. water
2. organic
3. homogeneous
4. biological
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one
two
thre
e fo
ur
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How many electrons can a carbon atom share? Carbon has a total of 6
electrons
1. one
2. two
3. three
4. four
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pro
tons
and n
eutro
ns
neu
trons
and e
lect
rons
pro
tons
and e
lect
rons
pro
tons,
neu
trons,
an...
25% 25%25%25%
The nucleus of an atom contains _____.
1. protons and neutrons
2. neutrons and electrons
3. protons and electrons
4. protons, neutrons, and electrons
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ele
ctro
n clo
uds
nucl
ei air
isoto
pes
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Electrons move about the nucleus of an atom in regions called _____.
1. electron clouds
2. nuclei
3. air
4. isotopes
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nucl
eic
acid
s
pep
tide
bonds
am
ino a
cids
gly
cero
l and fa
tty a
cids
25% 25%25%25%
What are the basic building blocks of proteins?
1. nucleic acids
2. peptide bonds
3. amino acids
4. glycerol and fatty acids
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ioni
c bond
ing
pola
rity
cova
lent b
onding
hyd
rogen
bondin
g
25% 25%25%25%
Water dissolves many ionic and molecular compounds because of its _____.
1. ionic bonding
2. polarity
3. covalent bonding
4. hydrogen bonding
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hyd
roly
sis
ele
ctro
n clo
uds
conden
satio
n
radi
atio
n
25% 25%25%25%
When molecules of glucose and fructose combine to form sucrose, they do so by
_____.1. hydrolysis
2. electron clouds
3. condensation
4. radiation
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lipid
s
car
bohydra
tes
nucl
eotid
es
pro
tein
s
25% 25%25%25%
The various enzymes in our bodies are _____.
1. lipids
2. carbohydrates
3. nucleotides
4. proteins
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num
bers
of ato
ms
arr
angem
ent o
f ato
ms
kin
ds o
f ato
ms
arr
angem
ent o
f ele
c...
25% 25%25%25%
Glucose and fructose, with the formula C6H12O6, differ in _____.
1. numbers of atoms
2. arrangement of atoms
3. kinds of atoms
4. arrangement of electrons
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3 5 9 13
25% 25%25%25%
A very strong base might have a pH of _____.
1. 3
2. 5
3. 9
4. 13
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two e
lect
rons
eig
ht e
lect
rons
sev
en e
lect
rons
nin
e el
ectro
ns
25% 25%25%25%
An atom of fluorine has nine electrons. Its second energy level has _____.
1. two electrons
2. eight electrons
3. seven electrons
4. nine electrons
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dyn
amic
equ
ilibriu
m
turg
or p
ress
ure
conce
ntra
tion g
radie
nt
hom
eost
asis
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Diffusion continues until there is no _____.
1. dynamic equilibrium
2. turgor pressure
3. concentration gradient
4. homeostasis
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pola
r ions
rand
om m
otion o
f mo...
chem
ical
ener
gy
mic
roorg
anis
ms
25% 25%25%25%
Brownian motion is evidence of _____.
1. polar ions
2. random motion of molecules
3. chemical energy
4. microorganisms
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Which of the images in Figure 6-4 depicts dynamic equilibrium?
1. A
2. B
3. C
4. D
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The smaller subunits that make up nucleic acids are ____________________.
a. Super tiny
b. Amino acids
c. Nucleotides
d. Carbohydrates
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Two atoms that share electrons are held together by ____________________ bonds.
a. Diffusion
b. Isotonic
c. Covalent
d. Ionic
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cel
lulo
se
polar
molec
ule
nucle
us
pep
tide
bond
polym
er
solu
tion
enzy
me
met
abolis
m
12% 12% 12% 12%12%12%12%12%
glucose polymer that forms the cell walls of plants
1. cellulose
2. polar molecule
3. nucleus
4. peptide bond
5. polymer
6. solution
7. enzyme
8. metabolism
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cel
lulo
se
polar
molec
ule
nucle
us
pep
tide
bond
polym
er
solu
tion
enzy
me
met
abolis
m
12% 12% 12% 12%12%12%12%12%
large molecule formed when many smaller molecules bond together
1. cellulose
2. polar molecule
3. nucleus
4. peptide bond
5. polymer
6. solution
7. enzyme
8. metabolism
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cel
lulo
se
polar
molec
ule
nucle
us
pep
tide
bond
polym
er
solu
tion
enzy
me
met
abolis
m
12% 12% 12% 12%12%12%12%12%
molecule with unequal distribution of charge
1. cellulose
2. polar molecule
3. nucleus
4. peptide bond
5. polymer
6. solution
7. enzyme
8. metabolism
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cel
lulo
se
polar
molec
ule
nucle
us
pep
tide
bond
polym
er
solu
tion
enzy
me
met
abolis
m
12% 12% 12% 12%12%12%12%12%
protein that speeds up a chemical reaction
1. cellulose
2. polar molecule
3. nucleus
4. peptide bond
5. polymer
6. solution
7. enzyme
8. metabolism
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cel
lulo
se
polar
molec
ule
nucle
us
pep
tide
bond
polym
er
solu
tion
enzy
me
met
abolis
m
12% 12% 12% 12%12%12%12%12%
bond formed between amino acids
1. cellulose
2. polar molecule
3. nucleus
4. peptide bond
5. polymer
6. solution
7. enzyme
8. metabolism
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cel
lulo
se
polar
molec
ule
nucle
us
pep
tide
bond
polym
er
solu
tion
enzy
me
met
abolis
m
12% 12% 12% 12%12%12%12%12%
all the chemical changes that occur within an organism
1. cellulose
2. polar molecule
3. nucleus
4. peptide bond
5. polymer
6. solution
7. enzyme
8. metabolism
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cel
lulo
se
polar
molec
ule
nucle
us
pep
tide
bond
polym
er
solu
tion
enzy
me
met
abolis
m
12% 12% 12% 12%12%12%12%12%
mixture in which one substance is distributed evenly in another
1. cellulose
2. polar molecule
3. nucleus
4. peptide bond
5. polymer
6. solution
7. enzyme
8. metabolism
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cel
lulo
se
polar
molec
ule
nucle
us
pep
tide
bond
polym
er
solu
tion
enzy
me
met
abolis
m
12% 12% 12% 12%12%12%12%12%
center of an atom
1. cellulose
2. polar molecule
3. nucleus
4. peptide bond
5. polymer
6. solution
7. enzyme
8. metabolism
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• What are the 4 types of biomolecules/organic molecules?
• Give an example of each.
CARBOHYDRATES: sugar, starch, pasta, crackers, potatoes etcLIPIDS: oils, fats, chips, cheese, greasy foodsPROTEINS: meat, peanut butter, milkNUCLEIC ACIDS: DNA, RNA
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• What are the tests to determine the presence of certain biomolecules/organic compounds?
BROWN PAPER: test for lipidsIODINE: test for starchBENEDICT’S SOLUTION: test for sugars