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WorksheetsBiochemistry
Total questions: 68
Worksheet time: 49mins
Name
Class
Date
1.
How many fatty acids make up a lipid?
a)
3
b)
1
c)
4
d)
2
2.
Simple sugars, like glucose, are called
a)
monosaccharides
b)
disaccharides
c)
polysaccharides
d)
starch
3.
Simple sugars, like glucose, are called
a)
monosaccharides
b)
disaccharides
c)
polysaccharides
d)
starch
4.
Which of the following elements is NOT found in carbohydrates?
a)
Carbon
b)
Hydrogen
c)
Nitrogen
d)
Oxygen
5.
Tomato juice has a pH of 4. Determine if it's an acid, base, or neutral.
a)
acid
b)
base
c)
neutral
6.
Household bleach has a pH of 12. Determine if it's an acid, base, or neutral.
a)
acid
b)
base
c)
neutral
7.
Carbon, Hydrogen, Oxygen and Nitrogen
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic acid
8.
Which macromolecule is this?
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
9.
Which biomolecule contains enzymes?
a)
Carbohydrate
b)
Lipid
c)
Nucleic Acid
d)
Protein
10.
In ___________, carbohydrate monomers bond together.
a)
dehydration synthesis
b)
hydrolysis
c)
phosphodiester bonding
d)
hydrogen bonding
11.
Which of the following is NOT created as a result of dehydration synthesis?
a)
Polymers
b)
Glucose
c)
Protein
d)
Disaccharides
12.
Which of the following is NOT created as a result of dehydration synthesis?
a)
Polymers
b)
Glucose
c)
Protein
d)
Disaccharides
13.
Lactose, Sucrose, and Starch are examples of which of the following?
a)
Proteins
b)
Milks
c)
Lipids
d)
Carbohydrates
14.
The building blocks of proteins are ________________________.
a)
Nucleic Acids
b)
Amino Acids
c)
Fatty Acids
d)
Triglycerides
15.
What is a substrate?
a)
The molecules that binds to the enzyme at the active site, and causes the enzyme to carry out a task.
b)
The molecule that does not fit into an enzyme, and has no effect on the enzyme.
c)
The molecule that binds to a place other than the active site, and caused the enzyme to carry out a task.
d)
A water molecule that breaks down monomers.
16.
Which biomolecule is this a picture of?
a)
Protein
b)
Nucleic Acid
c)
Lipid
d)
Carbohydrate
17.
Which biomolecule is this a picture of?*
a)
Protein
b)
Nucleic Acid
c)
Lipid
d)
Carbohydrate
18.
Which biomolecule is this a picture of?
a)
Protein
b)
Nucleic Acid
c)
Lipid
d)
Carbohydrate
19.
Which biomolecule contains pastas and breads?
a)
Lipid
b)
Protein
c)
Nucleic Acid
d)
Carbohydrate
20.
Which biomolecule helps form muscles?
a)
Nucleic Acid
b)
Carbohydrate
c)
Protein
d)
Lipids
21.
Which biomolecule is responsible for insulation and energy storage?
a)
Protein
b)
Nucleic Acid
c)
Lipid
d)
Carbohydrate
22.
Which biomolecule is your main source of energy?
a)
Nucleic Acid
b)
Protein
c)
Lipid
d)
Carbohydrate
23.
Which biomolecule includes fats, such as triglycerides, oils, waxes, and steroids (cholesterol); insoluble in water; provides energy storage, insulation, part of cell membrane, and hormones
a)
Nucleic Acid
b)
Lipids
c)
Carbohydrate
d)
Protein
24.
Which biomolecule's monomer (or building block) is amino acids?
a)
Lipids
b)
Proteins
c)
Nucleic Acid
d)
Carbohydrate
25.
Which biomolecule's monomer (or building block) is glycerol and fatty acid?
a)
Lipids
b)
Proteins
c)
Carbohydrate
d)
Nucleic Acid
26.
Which biomolecule's monomer (or building block) is monosaccharide?
a)
Lipids
b)
Proteins
c)
Carbohydrate
d)
Nucleic Acid
27.
Glucose is an example of a
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic Acid
28.
Enyzmes are a very important type of protein used to
a)
Build bones in skeleton
b)
Send hormonal signals throughout body
c)
Speed up chemical reactions
d)
Photosynthesize glucose in plants
29.
All polymers are made up of...
a)
monosaccharides
b)
monomers
c)
proteins
d)
None of these
30.
Which item is NOT a lipid?
a)
Wax
b)
Fats
c)
Oil
d)
Amino Acid
31.
What are the largest carbohydrates called?
a)
monosaccarides
b)
oligosaccarides
c)
disaccarides
d)
polysaccarides
32.
Lipids serve which function in a cell?
a)
store information
b)
store energy
c)
breakdown wastes
d)
join with substrates
33.
Carbon, Hydrogen, Oxygen and Nitrogen are elements in what biomolecule?
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic acid
34.
What is the following molecule?
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic Acid
35.
Which of the following is a large molecule of many simple sugars?
a)
Monosaccharide
b)
Disaccharide
c)
Polysaccharide
d)
Googlesaccharide
36.
Which of the following is a large molecule of one sugar?
a)
Monosaccharide
b)
Disasacchairde
c)
Polysaccharide
d)
Googlesaccharide
37.
The substance on which an enzyme acts is the:
a)
product
b)
substrate
c)
active site
d)
activation energy
38.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6.
b)
The optimum pH of the enzyme is 5.8
c)
The enzyme’s activity increases as pH increases 5.0 to 9.0
d)
The enzyme’s activity is greater around pH of 8.0 .
39.
Dehydration synthesis is
a)
Joining two molecules together following the removal of water molecule
b)
Separates two molecules by removal of water molecule
c)
Joining two molecules together by adding a water
d)
When you need to drink more water
40.
The word saccharide means:
a)
sugar
b)
glucose
c)
sweetener
d)
carbohydrate
41.
Which end of the water molecule has a slightly positive charge?
a)
the oxygen end
b)
the hydrogen end
c)
both ends are slightly positive
d)
neither end is positive
42.
Molecule in which opposite ends have opposite electric charges
a)
cohesion
b)
polar molecule
c)
hydrogen bond
d)
solution
43.
What word describes when water is attracted to other substances?
a)
cohesion
b)
surface tension
c)
capillary action
d)
adhesion
44.
Tendency of molecules of the same kind to stick to one another (water sticks to water)
a)
cohesion
b)
adhesion
c)
solution
d)
polar molecule
45.
Water beads up on the surface of a penny because of this property.
a)
Adhesion
b)
High Surface Tension
c)
Universal Solvent
d)
Changes in Density
46.
Which describes a base?
a)
Turns universal indicator red
b)
Has a pH greater than 7
c)
pH of 7
d)
pH of 3
47.
The chemical catalase (found in chicken liver) is added to a test tube of hydrogen peroxide. The test tube begins to bubble very fast. After 10 minutes the bubbles stop. A scientists analyzes the liquid in the test tube. The liquid in the test tube has now changed to water and oxygen but the catalase is still present. The enzyme in this lab must be .....
a)
the chemical catalse
b)
hydrogen peroxide
c)
the gas that is inside the bubbles (O2)
d)
water
48.
All proteins must contain at least which elements?
a)
CHON
b)
CHO
c)
CHONPS
d)
CON
49.
Which factor denatures a enzyme?
a)
Excessive heat
b)
Nothing can
c)
Exposure to light
d)
Exposure to bacteria
50.
What happens to an enzyme when it is denatured?
a)
Activation energy is lowered.
b)
It becomes stronger.
c)
It loses its shape.
d)
Activation energy is raised.
51.
Every enzyme has a optimal temperature and pH. True or False?
a)
True
b)
False
52.
Enzymes influence chemical reactions in living systems by:
a)
Providing the substrate required for the reaction to occur.
b)
Affecting the rate at which reactions occur.
c)
Absorbing water released when polymers are formed.
d)
Combining with excess hydrogen to from gaseous wastes.
53.
The "lock and key hypothesis" attempts to explain the mechanism of?
a)
Vacuole formation
b)
Pinocytosis
c)
Sharing of electrons
d)
Enzyme are specific to a substrate
54.
Any substance that is acted upon by an enzyme is called a(n)?
a)
Coenzyme
b)
Substrate
c)
Vitamin
d)
Polypeptide
55.
Based on the graph, what temperature does this enzyme work best?
a)
15 C
b)
40 C
c)
30 C
56.
Significantly changing the pH the enzyme is exposed to will cause the enzyme to _____________.
a)
increase enzymatic action
b)
fit better with the substrate
c)
denature
d)
evaporate
57.
How do lipids function for cells?
a)
store information
b)
store energy
c)
breakdown wastes
d)
join with substrates
58.
What are two main functions of fats within the body?
a)
energy storage and cellular transport
b)
energy storage and insulation
c)
building blocks for DNA and hormones
d)
storing cellular information and in the cell membrane
59.
What are different examples of lipids?
a)
monosaccahrides, disaccharides, starch, cellulose
b)
dipetide, polypeptide, amino acids
c)
DNA, RNA, ATP
d)
triglycerides, waxes, steroids, phospholipds
60.
Waxes are needed to provide _________.
a)
structural support
b)
protection
c)
water intake
d)
hair color
61.
This molecule is a
a)
carbohydrate
b)
nucleic acid
c)
protein
d)
lipid
62.
This molecules is a
a)
amino acid
b)
nucleic acid
c)
carbohydrate
d)
lipid
63.
Animals store glucose in the form of
a)
cellulose
b)
glycogen
c)
wax
d)
lipids
64.
Which macromolecule is this?
a)
protein
b)
lipid
c)
nucleic acid
d)
carbohydrate
65.
Water is able to act as an excellent coolant and keeps earth's climate milder because of-
a)
its cohesion and adhesion
b)
Its lower density as a solid
c)
its high heat capacity
d)
it surface tension
66.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6.
b)
The optimum pH of the enzyme is 5.8
c)
The enzyme’s activity increases as pH increases 5.0 to 9.0
d)
The enzyme’s activity is greater around pH of 8.0 .
67.
what is the structure of lipids?
a)
nitrogen, carbon, hydrogen, oxygen
b)
disaccharide, polysaccharide
c)
carbon, hydrogen, {oxygen- (very few}
d)
carbon, hydrogen, oxygen
68.
Which of the following words is incorrectly matched with its meaning?
a)
Di = Two
b)
Mono = One
c)
Poly = Four
d)
Tri = Three
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