Which of the following statements about enzymes is not true?
A) Enzymes work best at a specified pH
B) All enzymes have the same shape as their substrates.
C) Enzymes are proteins.
D) The shape of an enzyme allows it to do its job.
To determine which of the statements about enzymes is not true, let's examine each option:
A) Enzymes work best at a specified pH: This statement is true. Enzymes exhibit optimum activity at specific pH levels, and deviations from this pH can affect their performance.
B) All enzymes have the same shape as their substrates: This statement is false. Enzymes and their substrates have complementary shapes, but they do not have the exact same shape. Enzymes have specific regions called active sites that bind to substrates and catalyze reactions.
C) Enzymes are proteins: This statement is true. Enzymes are biological catalysts that are usually large protein molecules. They play a crucial role in speeding up chemical reactions in living organisms.
D) The shape of an enzyme allows it to do its job: This statement is true. The specific shape of an enzyme is essential for its function. The shape of the enzyme's active site determines its ability to bind to the substrate and facilitate the reaction.
Therefore, the statement that is not true is B) All enzymes have the same shape as their substrates.
You obviously didn't read what I posted earlier.
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