WorksheetsUnit 3 Review
Total questions: 10
Worksheet time: 20mins
Which hypothesis is most likely to be productive for the initial investigation?
The nucleotide chain of the enzymes may be incorrectly formed
The dye in the fabric may have hydrolyzed the fatty acids in the enzymes
The polysaccharides in the enzymes may have separated in the wash water
The three-dimensional amino acid structure of the enzyme may have been altered
Based on your understanding of enzyme structure, which of the following would you recommend that the lab also investigate?
The temperature of the liquid in the washing vat
Washing the blue jeans in smaller vats
The manufacturer of the fabric
Switching to another product for the enzyme wash
Which molecule listed in the chart is a protein?
1
2
3
4
Which molecule(s) contain(s) monomers that contain carbon, hydrogen, oxygen, and nitrogen? (Choose all that apply)
1
2
3
4
Enzymes are examples of which molecule?
1
2
3
4
Which molecules have monomers that only contain carbon, hydrogen, and oxygen? (Choose all that apply)
1
2
3
4
Which of the following types of molecules are primarily used for long-term energy storage in the lemur?
Monosaccharides
Nucleic acids
Lipids
Proteins
People who have Alzheimer’s disease experience an increasing loss of brain function and cognition over time. Alzheimer’s is characterized by a buildup of abnormal protein fragments that damage brain cells. Recently scientists have discovered an enzyme, BACE2, that decreases these abnormal protein fragments in the brain of a person with Alzheimer’s disease. Which statement explains how BACE 2 most likely works?
BACE2 breaks down smaller pieces that react with the abnormal protein fragments, forming more complex molecules
BACE2 speeds up the reaction that breaks down the abnormal protein fragments
BACE2 molecules link several abnormal protein fragments together, forming a complete protein.
BACE2 is a reactant that combines with the abnormal protein fragments.
Which statement correctly identifies the result that the optimum pH for amylase function is 7?
The pH with the lowest absorbance values would indicate the optimum pH for amylase since this pH does not affect the structure or function of the protein.
The pH with the highest absorbance values would indicate the optimum pH for amylase since this pH does not affect the structure or function of the protein.
At pH 9, the enzyme is denatured and will lose its function, but not its structure.
At pH 4, the structure of the enzyme will be altered, and the enzyme would not be able to catalyze the reaction.
Based on the diagram, determine the pH necessary in order to achieve the maximum rate of both chymotrypsin and arginase activity in the same reaction.
2.0
7.4
8.0
8.3
