Download Biology Unit 1-Quiz #2A

Name: _____________________________________________________ Hour: _________ Teacher: Rozema
Date: ______________________________________________________
Biology Unit 1-Quiz #2A
[Content: Biomolecules & Enzyme Details]
Biomolecule Monomers & Polymers
________ 1) Monomers are…
A- The smaller, repeating units that make up the larger structure of the biomolecule.
B- The larger biomolecule, composed of several repeating units.
________ 2) Polymers are…
A- The smaller, repeating units that make up the larger structure of the biomolecule.
B- The larger biomolecule, composed of several repeating units.
________ 3) Which biomolecule is made of fatty acids and glycerol?
ABCD-
Carbohydrates
Proteins
Nucleic Acids
Lipids
________ 4) This biomolecule is made of monosaccharides must be a:
ABCD-
Carbohydrate
Protein
Nucleic Acids
Lipids
________ 5) Amino Acids are the monomers for which type of biomolecule?
ABCD-
Carbohydrates
Proteins
Nucleic Acids
Lipids
________ 6) Repeating units of nucleotides are used by cell to make up…
ABCD-
Carbohydrates
Proteins
Nucleic Acids
Lipids
________ 7) The polymers of proteins are technically called _________________.
ABCD-
Polysaccharides
Phospholipids / Fats / Oils
Polypeptides
DNA / RNA
________ 8) Phospholipids, Fats, and Oils are examples of _________________ polymers.
ABCD-
Carbohydrate
Protein
Nucleic Acid
Lipid
________ 9) Repeating units make up the polymers of nucleic acids, which are:
ABCD-
Polysaccharides
Phospholipids / Fats / Oils
Polypeptides
DNA / RNA
________ 10) What are the polymers of carbohydrates called?
ABCD-
Polysaccharides
Phospholipids / Fats / Oils
Polypeptides
DNA / RNA
Biomolecule Functions
________ 11) A quick burst of short term energy can be given to cells through…
ABCD-
Polysaccharides
Polypeptides
Monosaccharides
Phospholipids
________ 12) Fats and Oils are important for our cells because:
ABCD-
They provide our cells with intermediate energy.
They provide genetic instructions to make proteins for our cells.
They catalyze chemical reactions.
They provide long term energy storage.
________ 13) If an organism is no longer able to catalyze the chemical reactions, something must be wrong with its…
ABCD-
Nucleic Acids
Proteins
Lipids
Carbohydrates
________ 14) What is the function of polysaccharides?
ABCD-
To provide cells with long term energy storage.
To provide cells with intermediate energy.
To provide cell structure and the expression of DNA/RNA.
To provide the genetic instructions for a cell.
________ 15) The genetic instructions for a cell can be found within its:
ABCD-
Nucleic Acids
Proteins
Lipids
Carbohydrates
________ 16) Proteins have several functions inside cells, one being…
ABCD-
The ability to provide cells with a quick burst of short term energy.
The ability to provide cells with unique structure, and express the code within DNA/RNA.
The ability to slow down chemical reactions.
The ability to provide cells with long term energy storage.
________ 17) Why are phospholipids so important?
ABCD-
They provide cells with long term energy storage.
They catalyze chemical reactions.
They contain genetic instructions.
They form all cell membranes.
Biomolecule Details
18) Many physicians and food companies would agree that carbohydrates made from wheat/whole-grain are
healthier for us than those made from “white-flour”/simple sugars. Use your understanding of the different types of
carbohydrates, and their functions, to explain why this is true:
19) Draw a Nucleic Acid Nucleotide, and label its 3 parts (spelling will not count):
20) Some people have extremely low levels of hemoglobin within their bodies. Explain how this could be a problem
to remain healthy. In your explanation be sure to state the type of molecule hemoglobin is, and the importance its
function serves for us.
21) Draw a single Phospholipid. Label the following parts: Glycerol, Fatty Acids, Hydrophobic, Hydrophillic
22) What does Hydrophillic mean?
Which part of a phospholipid is Hydrophilic?
What makes this part Hydrophillic?
23) What does Hydrophobic mean?
Which part of a phospholipid is Hydrophobic?
What makes this part Hydrophobic?
Use the following Data Table to answer Questions #24-32
Food Sample
Sample-1
Benedict
Iodine
+
-
Sample-2
Sample-3
Sample-4
Sample-5
Sudan
+
-
Biuret
+
+
-
Remember that Benedict’s Solution tests for Monosaccharides, Iodine tests for
Polysaccharides, Sudan tests for Lipids, and Biuret Solution tests for proteins. The (+)
symbols show that the food sample tested “positive” with that solution.
________ 24) Which of the food samples would contain polysaccharides?
ABCDE-
Sample 1
Sample 2
Sample 3
Sample 4
Sample 5
________ 25) Which of the food samples would contain amino acids?
ABCDE-
Sample 1
Sample 2
Sample 3
Sample 4
Sample 5
________ 26) Which of the food samples would contain monosaccharides?
ABCDE-
Sample 1
Sample 2
Sample 3
Sample 4
Sample 5
________ 27) Which of the food samples would contain fatty acids and glycerol?
ABCDE-
Sample 1
Sample 2
Sample 3
Sample 4
Sample 5
________ 28) If you needed a quick burst of energy you would want to eat:
ABCDE-
Sample 1
Sample 2
Sample 3
Sample 4
Sample 5
________ 29) Which food sample would be able to either catalyze your cell reactions, or provide cells with structure?
ABCDE-
Sample 1
Sample 2
Sample 3
Sample 4
Sample 5
________ 30) This food sample would provide your cells with long term energy storage:
ABCDE-
Sample 1
Sample 2
Sample 3
Sample 4
Sample 5
________ 31) Which food sample could provide your cells with more intermediate energy?
ABCDE-
Sample 1
Sample 2
Sample 3
Sample 4
Sample 5
________ 32) Which food sample would have an unknown function and/or biomolecule content?
ABCDE-
Sample 1
Sample 2
Sample 3
Sample 4
Sample 5
33) Which graph could represent monosaccharides? Make sure to not only identify which graph, but to ALSO
EXPLAIN in detail how you were able to figure this out (using information from the graph and knowledge of
monosaccharide function).
34) Which graph could represent polysaccharides? Make sure to not only identify which graph, but to ALSO EXPLAIN
in detail how you were able to figure this out (using information from the graph and knowledge of monosaccharide
function).
Enzymes
________ 35) The function of enzymes:
ABCD-
Slow down chemical reactions.
Speed up chemical reactions.
Increase the energy of activation required to start a chemical reaction.
Keep the required energy of activation, of a chemical reaction, the same.
________ 36) Catalyze is another term for “speed up”.
A- True
B- False
________ 37) Which of the following is accurate?
A- When an enzyme catalyzes a reaction, the substrate from the reaction must bind to the active site of
the enzyme.
B- When an enzyme catalyzes a reaction, the enzyme from the reaction must bind to the active site of
the substrate.
C- When an enzyme binds to the substrate this will increase the activation energy for the related
reaction.
D- Enzymes can only be used once per reaction. Therefore cells must constantly produce more and
more enzymes since they cannot be recycled.
________ 38) What is denaturing?
A- The result of extreme heat, cold, or strong chemicals like acids and bases.
B- What scientists call the process of enzymes catalyzing reactions.
C- A change to the structure of an enzyme, which alters its active site, preventing it from binding to the
substrate and functioning.
D- Both A and B are correct.
E- Both A and C are correct.
39) In the Liver Enzyme Lab you observed hat plain liver reacted with hydrogen peroxide by producing bubbles and
clear liquid. However, when the liver was frozen or cooked there was either very minimal reaction or no reaction at
all. Explain why this occurred. Use your understanding of enzymes, their function, and denaturing to explain what
happened IN DETAIL.