Which environmental factor \"denatured\" catalase ? a. room temperature b. high
ID: 13413 • Letter: W
Question
Which environmental factor "denatured" catalase ?a. room temperature
b. high H2O2 volume
c. cooking
d. none of the above
All enzymes are proteins. What is the most important structural property of a protein molecule for its function as an enzyme?
a. The 3D structure of the protein
b. The length of the amino acid chain
c. The type of bond formed between amino acid in the protein
d. All of the above
When an enzyme is placed in very high temperatures or unfavorable pH, it denatures. Denaturation first affects the .. structure of a protein.
a. primary structure
b. secondary structure
c. tertiary structure
d. quaternary structure
Explanation / Answer
Answer:
1] A
2] D... (if not D, then this was a trick question and the answer is definitely A)
3] D
=====
Explanation:
1) Cooking will kill the protein. Imagine cooking an egg. Once the egg in the pan becomes white, the protein has been denatured.
2) All of them contribute someway to protein interaction. 3D structure is most important. But amino acid chain length gives rise to its size in a way overall which is also part of its 3D structure. The bond types formed may also influence the protein folding into its 3D structure. This question seems like a trick question. If choice D is wrong, choice A would definitely be the correct answer.
3) Denaturation first targets the most inclusive structure, quaternary.
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