Macromolecules & Enzymes Quiz
Preview:
If you did not have an immediate source of energy, which macromolecule would your body use?
A. lipid
B. nucleic acid
C. protein
D. carbohydrate
What is the optimal pH of enzyme A?
A. 8
B. 2
C. 5.7-10
D. 10
What macromolecule is in chicken, beans, eggs, and fish?
A. carbohydrate
B. lipid
C. protein
D. nucleic acid
If the enzyme is functioning at 55 degrees and a pH of 8, but its optimal temperature is 60-80 C and pH is 3. What conditions will increase rate of enzyme?
A. Decreasing the temperature to 22 and pH is kept the same
B. Temperature is kept the same and pH is decreased to 6
C. Temperature is increased to 90 and pH is kept the same
D. Temperature is increased to 70 and pH is decreased to 4
Correctly match the monomer and polymer.
A. nucleotide to lipid
B. amino acid to carbohydrate
C. monosaccharide to protein
D. fatty acid to lipid
What type of macromolecule is this?
A. carbohydrate
B. lipid
C. nucleic acid
D. protein
What does not affect enzyme?
A. pH
B. temperature
C. amount of substrate
D. how much enzyme is being used
Correctly match the monomer and polymer.
A. nucleotide to lipid
B. amino acid to carbohydrate
C. monosaccharide to polysaccharide
D. fatty acid to protein
Which macromolecule is your main source of energy (quick, short-term)?
A. carbohydrate
B. lipid
C. protein
D. nucleic
Correctly match the monomer and polymer.
A. nucleotide to nucleic acid
B. amino acid to lipid
C. monosaccharide to lipid
D. fatty acid to protein
What is happening in the last step?
A. The substrates are forming a bond
B. The substrate is binding to the enzyme
C. The active site is reforming
D. The catalyzed reaction is releasing the product
What macromolecule is in pasta?
A. carbohydrate
B. lipid
C. protein
D. nucleic acid
Based on the graph, what temperature does this enzyme work best?
A. 15 C
B. 40 C
C. 30 C
D. 47 C
Hemoglobin is a protein found in red blood cells that transports oxygen. If it is mutated then it is not as efficient in carrying oxygen. Why?
A. Mutated hemoglobin can still oxygen
B. Hemoglobin is a simple molecule
C. Structural changes of hemoglobin affects its ability to carry oxygen because the shape of protein impact its function
D. Normal hemoglobin must be larger than mutated hemoglobin
Why are enzymes important?
A. Help keep pH stable
B. Help increase rate of reaction
C. Allow the cell to use energy to make food
D. Provide cells with energy for life functions