1. An enzyme is considered a(n) ____ because it speeds up a chemical reaction without being used up.2. In a catalyzed reaction,

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1. An enzyme is considered a(n) ____ because it speeds up a chemical reaction without being used up.2. In a catalyzed reaction,

a reactant is often called a(n) _______.3. An enzyme is specific because the shape of its ______ matches only particular reactants.4. An enzyme speeds up reactions by lowering the _______.5. The _____ between an active site and its substrate often strains bonds and helps the reaction proceed.6. A(n)________ , which is often a vitamin, binds to an enzyme and plays a role in catalysis.7. High temperatures or changes in pH can _______ an enzyme, causing it to lose its shape and biological activity.

Biology

2 answers:

inysia [2K] · Answer 1 · 2026-04-01T09:52:06+03:00

(1) Catalyst, (2) substrate, (3) active site, (4) activation energy, (5) induced fit, (6) cofactor, (7) denature. An example of an enzyme is carbonic anhydrase, which facilitates the reversible reaction involving water and carbon dioxide to produce carbonic acid. While this reaction typically proceeds slowly, it is expedited in the body, aiding in pH regulation of blood and assisting in the removal of carbon dioxide from tissues.

11111nata11111 [2.2K] · Answer 2 · 2026-04-01T09:55:30+03:00

1. Biocatalyst; 2. A substrate; 3. Active site; 4. Activation energy; 5. Induced fit; 6. Co-factor. Enzymes are proteins that act as biocatalysts, speeding up biochemical reactions. In their presence, substrates are transformed into products at an increased velocity. The protein's tertiary structure folds and forms pockets, such as the active site where substrate molecules attach. An initial energy input, termed activation energy, is necessary for reactions to initiate, which is facilitated by living organisms. Enzymes can reduce this activation energy, thereby accelerating reaction rates. Some enzymes require specific accompanying non-protein components called cofactors.