WorksheetsUnit 1
Total questions: 50
Worksheet time: 26mins
Polarity is when a molecule has
the same charges
opposite charges
no charge
The solute is the one
dissolving
getting dissolved
Identify bond #1
covalent
hydrogen
Which bonds are responsible for keeping one molecule of water together?
covalent
hydrogen
Hydrogen has a ___________ charge.
positive
negative
Oxygen has more of a negative charge due to it holding on to the _______________ more than the hydrogen.
protons
neutrons
electrons
Identify bond #2
covalent
hydrogen
Which property is represented by water bonding to water?
adhesion
cohesion
Which two water properties allow for water to have surface tension?
adhesion
hydrogen bonds
cohesion
high heat capacity
Water can move against gravity by using which two properties?
adhesion
denisty
cohesion
universal solvent
As water gets closer to freezing, what happens to the arrangement of the moelcules?
They move closer together
They move faster
They disappear
They move apart, forming pockets
What occurs during a dehydration synthesis reaction?
water is added to break a bond
water is removed to make a bond
water is added to make a bond
water is removed to break a bond
What occurs during a hydrolysis reaction?
water is added to break a bond
water is removed to make a bond
water is added to make a bond
water is removed to break a bond
Water boils at___ Celscius
212
100
0
32
Water freezes at _____Celscius
212
100
32
0
Solvent is the one
doing the dissolving
getting dissolved
Water sticking to a paper towel more than your hand is an example of
surface tension
boiling point
adhesion
cohesion
How does sweating help to cool us off?
The hydrogen bonds do not hold any heat
The hydrogen bonds pull the heat from your body
The covalent bonds pull the heat from your body
The water turns to ice
Identify the monomer for lipids
monosaccharides
amino acids
nucleotides
3 fatty acids and 1 glycerol
Identify the monomer for carbohydrates
monosaccharides
amino acids
nucleotides
3 fatty acids and 1 glycerol
Identify the monomers for nucleic acids
monosaccharides
amino acids
nucleotides
3 fatty acids and 1 gycerol
Identify the monomers for proteins
monosaccharides
amino acids
nucleotrides
3 fatty acids and 1 glycerol
Which of the following is a function of lipids?
short-term energy
genetic instructions
long-term energy
enzymes, muscles, antibodies
Which of the following is a function of carbohydrates?
short-term energy
genetic instructions
long-term energy
enzymes, muscles, and antibodies
Which of the following is a function of nucleic acids?
short-term energy
genetic instructions
long-term energy
enzymes, muscles, and antibodies
Which elements make up lipids?
C,H,O
C,H,O,N
C,H,O,N,P
Which elements make up carbohydrates?
C,H,O
C,H,O,N
C,H,O,N,P
Which elements make up nucleic acids?
C,H,O
C,H,O,N
C,H,O,N,P
Which elements make up proteins?
C,H,O
C,H,O,N
C,H,O,N,P
Select an example of lipids.
saturated and unsaturated fats
Glucose, starch, glycogen, cellulose
amylase, lactase, maltase
DNA/RNA
Select an example of carbohydrates
saturated and unsaturated fats
glucose, starch, glycogen, cellulose
amylase, lactase, maltase
DNA/RNA
Select an example of nucleic acids
saturated and unsaturated fats
glucose, starch, glycogen, cellulose
lactase, maltase
DNA/RNA
Select an example for proteins
saturated and unsaturated fats
glucose, starch, glycogen, cellulose
lactase, maltase, amylase
DNA/RNA
Which macromolecule is this?
lipid
carbohydrate
nucleic acid
Protein
Identify the macromolecule.
lipid
carbohydrate
protein
nucleic acid
Identify the macromolecule.
lipid
carbohydrate
protein
nucleic acid
Many of these bond together to form this macromolecule.
lipid
carbohydrate
protein
nucleic acid
a pH of 13 is a
strong acid
weak acid
strong base
weak base
a pH of 6 is a
weak acid
strong acid
weak base
strong base
As you move closer to 0, the amount of H+ ions ________
stays the same
increases
decreases
To increase the OH- ions, you would have to move closer to which number?
0
7
14
If you combine an acid and a base, you will create a pH of __________
0
7
14
Why do we have buffers in our blood?
to make our bodies acidic
to make our bodies basic
to make our bodies neutral
Maintaining our body temperature by shivering or sweating is an example of _____________
metabolism
mitosis
photosynthesis
homeostasis
Water cannot break apart oil because oil is ________
nonpolar
polar
mean
rude
-ase
move toward
move away
with
enzyme
Identify the tools
test tubes
pipet
beaker
graduated cylinder
Identify the tools
pipet
test tube
beaker
graduated cylinder
What property of water pulls the water on the sides of the graduated cylinder?
high heat capacity
adhesion
solvent
cohesion
Which property of water allows organisms to survive in a lake during the winter?
high heat capacity
ice is less dense
hydrogen bonds
ice is more dense
