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WorksheetsUNIT 2 TEST : MACROMOLECULES
Total questions: 40
Worksheet time: 40mins
A ______________ is a large molecule.
Micromolecule
Polymer
Amino Acid
Macromolecule
Which of the following elements are found in all macromolecules? (Select all that apply).
Which macromolecule is used as our main source of energy?
Lipids/Fats
Nucleic Acids
Proteins
Carbohydrates
Which of the following are examples of carbohydrates? (Select all that apply).
Bread
Pasta
Olive Oil
Cheese
Plants build cellulose (a polysaccharide) to makeup their parts like leaves, roots, stems, etc. What monomer do plants use to build cellulose?
monosaccharides
disaccharides
amino acids
nucleotides
This group includes steroids like estrogen and testosterone
carbohydrate
lipid
protein
nucleic acid
One of the characteristics of life is that organisms must have genetic material. This genetic material is a ________.
carbohydrate
lipid
protein
nucleic acid
Which of the following statements is true about catalysts (enzymes)?
Catalysts slow down the rate of chemical reactions.
Enzymes help regulate pH.
Catalysts are used up during a chemical reaction.
Catalysts lower the activation energy of a chemical reaction.
An enzyme and substrate can be compared to
lock and key
a faucet
a door hinge
light switch
The picture below shows an enzyme acting on a substrate to form products during a chemical reaction. Using the figure, what letters represents the enzyme?
A and B
B and D
A and E
D and E
The diagram shows a glucose molecule. Which is the primary function of a glucose molecules?
To make up the structure of cell membranes
To act as a catalyst for chemical reactions
To encode genetic information
To provide energy for cell activities
You have identified a new enzyme that functions at a pH range that is similar to salivary amylase. What is the optimal pH of the new enzyme?
2
7
9
8
The diagram shows the structure of starch, a complex carbohydrate made up of glucose. What best describes the relationship between starch and glucose?
Starch and glucose are reactants that combine to form proteins.
Starch is a monomer that is used to make glucose.
Starch is a carbohydrate polymer made of glucose monomers.
Starch and glucose are reactants that combine to form nucleic acids.
The diagram shows the general structure of an amino acid. Amino acids bonded by peptide bonds form polypeptide chains. This is the monomer of which type of macromolecule(s)?
Nucleic acids
Proteins
Lipids
All of the above
Which macromolecule group looks like this image?
Carbohydrate
Protein
Lipid
Nucleic Acid
Which macromolecule group looks like this image?
Carbohydrate
Protein
Lipid
Nucleic Acid
Which macromolecule group looks like this image?
Carbohydrate
Protein
Lipid
Nucleic Acid
Explain the difference between a monomer and a polymer.
A polymer is a small piece that makes up a polymer.
Monomers are several monomers connected together through bonds
A monomer is a small piece that makes up a polymer.
Polymers are several monomers connected together through bonds
This structure is a...
amino acid
nucleotide
monosacharride
fatty acid
Muscle growth and structural support, enzymes (catalysts or speed up chemical reactions). Function of...
lipids
proteins
carbohydrates
nucleic acids
Forms the cell membranes?
lipids
carbohydrates
proteins
nucleic acids
What is one of the functions of lipids?
Storing genetic information
Long Term Energy
Short Term Energy
Acting as chemical signals
What macromolecule is shown?
Proteins
Nucleic Acids
Lipids
Carbohydrates
At very high temperatures, most enzymes do not increase the rate of the reactions they regulate. What is the most likely reason for this lack of enzyme activity at very high temperatures?
The enzyme denatures and can no longer function properly.
The enzyme would have already broken down at a much lower temperature.
The products would have already been used up in the reaction by the time it reaches that high temperature.
The enzyme would have already sped up the rate of reaction as much as it could and would not be affected by the increase in temperature.
Which of the following correctly matches the elements present in macromolelcule?
CHO-Lipids
CHO-Proteins
CHON-Nucleic Acids
CHONP- Carbohydrates
True or False: Proteins and Polypeptides are the same thing.
True
False
What does a glycogen molecule look like?
