Download The six elements that make up 99.9% of all living things include

The six elements that make up 99.9%
of all living things include
C, K, O, N, Ca and S
C, P, S, H, O and N
C, P, K, I, O and N
N, O, P, H, S and T
75%
15%
10%
an
d
T
N
N,
O
,P
,H
,S
an
d
C,
P,
K
,I
,O
an
d
,H
,O
C,
P,
S
,O
,N
,C
aa
nd
N
S
0%
C,
K
1.
2.
3.
4.
Which chemical elements would you
expect to find in abundance in a living cell?
1. hydrogen, neon,
argon
2. carbon, oxygen,
hydrogen
3. iron, magnesium,
calcium
4. sodium, potassium,
sulfur
100%
0%
um
ot
as
s iu
m
,s
ul
fu
r
so
di
u
m
,p
alc
i
,c
ne
s iu
m
ag
n,
m
iro
ca
r
bo
n
,o
xy
g
en
,h
yd
rg
on
,n
eo
n,
a
ge
n
hy
dr
o
0%
ro
ge
n
0%
What are the building blocks of protein
molecules?
Polymers
fatty acids
glucose molecules
amino acids
90%
10%
id
s
am
in
o
ec
ul
ol
m
co
se
glu
ac
es
s
0%
ac
id
fa
tty
ol
y
m
er
s
0%
1.
P
1.
2.
3.
4.
Fats are important energy storage
compounds because they:
53%
32%
16%
bo
re
qu
ir e
al
do
n'
t
0%
ni
tro
ge
n
d.
..
...
pe
at
ar
e
liq
ui
d
m
n
ta
i
co
n
no
rm
er
gy
or
e
en
ed
ia
im
m
de
ro
vi
2.
p
ea
di
ly
br
e
ak
do
w
n
te
e.
..
to
...
0%
1.
r
1. readily breakdown to
form glucose
2. provide immediate
energy
3. contain more energy
per gram than
carbohydrates or
proteins
4. are liquid at normal
body temperatures
5. don't require nitrogen
Which of the following describes the
function of proteins?
1. energy formation
and storage
2. energy used in
muscles and
reaction
3. structural use and
enzyme formation
4. heredity and genetic
code carriers
55%
30%
15%
co
..
zy
..
ge
ne
t ic
en
d
an
he
r
ed
ity
an
d
us
e
st
ru
ct
ur
al
d
us
e
gy
en
er
en
er
gy
fo
rm
in
at
m
io
n
an
d
us
c le
s.
..
s. .
.
0%
What is the most common food
storage compound in plants?
Glucose
Starch
Sucrose
Cellulose
fat
40%
25%
20%
15%
fa
t
lo
se
Ce
llu
se
Su
cr
o
rc
h
St
a
se
0%
Gl
uc
o
1.
2.
3.
4.
5.
The properties of water make it very valuable to living
systems. Which of the following statements
regarding water is not true?
1. it modifies temperature
extremes
2. it makes up about 50%
of your body
3. it is the greatest solvent
in the world
4. it expands slightly when
it freezes
5. it covers more than 75%
of the earth's surface
55%
25%
10% 10%
he
n
..
ha
n
w
et
or
er
sm
co
v
75
%
i..
.
t.
.
ht
ly
sli
g
it
it
ex
pa
nd
s
gr
e
th
e
is
it
ve
n
ts
ol
at
es
ou
t
ab
p
ak
es
u
m
it
it
m
od
i
fie
st
em
pe
ra
tu
r
50
%
e.
..
o.
..
0%
Which of the following statements are
true of enzymes?
70%
25%
5%
.
c..
up
n
sp
ee
d
do
w
th
ey
u
su
all
y
s lo
w
se
d
yu
th
e
. ..
on
ce
0%
su
all
y
on
l
yb
eu
ith
an
yc
th
e
yw
ill
re
ac
tw
th
e
ya
re
m
lip
os
...
id
s
0%
th
e
1. they are lipids
2. they will react with
most body chemicals
3. they can only be used
once
4. they usually slow
down reactions and
prevent overheating
of the cells
5. they usually speed up
chemical reactions
Which characteristic of water allows it to
support the weight of objects more dense than
water?
1. capillary action
90%
2. surface tension
3. specific heat
4. Evaporation
5. adhesion
10%
sio
ad
he
n
at
io
po
r
n
0%
t
Ev
a
ch
ea
sp
ec
ifi
e
te
n
sio
n
tio
su
rfa
c
ac
ar
y
ill
ca
p
0%
n
0%
Water is polar in nature. To be polar
means to:
1. be very cold and
difficult to warm up.
2. freeze easily and
boil rapidly
3. have positive and
negative charged
ends
4. have a low heat
capacity
95%
5%
ac
it y
0%
ha
v
ea
lo
w
ve
he
an
d
at
ca
p
ne
ga
t
i..
a.
..
os
iti
ha
v
ep
ea
ze
fre
e
be
ve
ry
c
ol
d
sil
y
an
d
an
d
di
bo
i
lr
ffi
cu
l..
.
0%
Which one of the following is not an
organic molecule found in living
organisms?
Protein
Nucleic acid
Carbohydrate
Sodium chloride
Lipid
85%
or
id
ch
l
m
id
e
e
ra
t
So
di
u
bo
hy
d
Ca
r
ic
Nu
cle
5%
0%
Lip
5%
ac
id
in
5%
Pr
ot
e
1.
2.
3.
4.
5.
Which combination of particle and
charge is correct?
60%
20%
d
ive
ly
ch
a
rg
e
ch
...
n:
n
eg
at
eg
Pr
ot
o
n:
n
tro
Ne
u
10%
at
ive
ly
el
y
:p
os
iti
v
ro
n
Ele
ct
n:
po
sit
i
ve
ly
c
ha
ch
a
rg
e
d
rg
ed
10%
Pr
ot
o
1. Proton:positively
charged
2. Electron:positively
charged
3. Neutron: negatively
charged
4. Proton: negatively
charged
Which of the following molecules is
made up of glycerol and fatty acids?
68%
16%
ns
5%
pr
o
te
i
s
cid
ic
a
Nu
cle
Lip
es
rc
h
St
a
5%
id
s
5%
s
Sugars
Starches
Lipids
Nucleic acids
proteins
Su
ga
r
1.
2.
3.
4.
5.
An acidic solution could have a pH of
7
10
3
14
84%
16%
14
0%
3
10
0%
7
1.
2.
3.
4.
The three particles in an atom are
100%
eu
. ..
0%
ct
ro
ns
,n
bo
hy
. ..
es
,e
le
ip
id
s,
ca
r
Iso
to
p
in
s,
l
ut
ro
ns
,e
le
ct
. ..
0%
Pr
ot
e
Pr
ot
o
ns
,
ne
on
s,
n
eu
tro
ns
,i
on
s
0%
Pr
ot
r
1. Protrons, neutrons,
ions
2. Protons, neutrons,
electrons
3. Proteins, lipids,
carbohydrates
4. Isotopes, electrons,
neutrons
What two types of molecules combine
to form cell membranes?
1. Nucleic acids and
carbohydrates
2. Phospholipids and
proteins
3. Carbohydrates and
proteins
4. Polysaccharides and
RNA
65%
20%
e.
..
id
cc
ha
r
ys
a
Po
l
Ca
r
bo
hy
d
ra
t
id
s.
es
...
..
5%
Ph
os
ph
ol
ip
Nu
cle
ic
a
cid
s.
..
10%
Glycogen, Cellulose, and Starch are all
proteins
monosaccharides
Nucleic acids
polysaccharides
55%
25%
15%
e.
..
s
ar
id
ac
id
po
l
ys
a
cc
h
ic
Nu
cle
m
on
os
a
cc
h
ar
id
te
i
e.
..
ns
5%
pr
o
1.
2.
3.
4.
When salt is dissolved in water, the
water is the
Reactant
Solution
Solute
Solvent
75%
10%
15%
t
ve
n
So
l
ut
e
So
l
ut
io
n
So
l
ac
ta
nt
0%
Re
1.
2.
3.
4.
A substance with a pH of 8 is
1. An acid
2. A base
3. Both an acid and a
base
4. neutral
89%
tra
ne
u
e
ba
s
ac
id
an
d
a
A
an
0%
l
ba
se
5%
Bo
th
An
ac
id
5%
How much more acidic is a substance
with a pH of 4 compared to a
substance with a pH of 6?
10 times
20 times
100 times
1000 times
50%
45%
5%
es
tim
10
00
10
0
tim
es
es
tim
20
tim
es
0%
10
1.
2.
3.
4.
Which of the following is an example
of a catalyst?
An enzyme
Sodium Chloride
Water
Carbon Dioxide
50%
30%
15%
xid
e
er
bo
n
Di
o
W
at
Ca
r
So
di
u
m
Ch
lo
r
en
zy
m
id
e
e
5%
An
1.
2.
3.
4.
Which part of a phospholipid molecule
is non-polar and hydrophobic?
1. The lipid tails
2. The
glycerol/phosphate
head
70%
ro
l
ce
gly
Th
e
Th
e
lip
id
ta
/p
. ..
il.
..
30%