What are true about enzymes?

Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.

Which of the following is correct about enzymes?

(i) Enzymes do not alter the overall change in free energy for a reaction. (ii) Enzymes are proteins whose three dimensional energy. (iii) Enzymes speed up reactions by lowering activation energy. (iv) Enzymes are highly specific for reactions.

Which statement is true for all enzymes?

All enzymes are proteins, but the reverse is not true. So, the correct answer is “Option B”. Note: Enzymes are not the only biological catalysts that’s found in our body. Ribozymes are RNA molecules that have the ability to catalyse a chemical reaction.

What are 4 characteristics of enzymes?

Characteristics of an Enzyme :
  • Speed up chemical reactions.
  • They are required in minute amounts.
  • They are highly specific in their action.
  • They are affected by temperature.
  • They are affected by pH.
  • Some catalyze reversible reactions.
  • Some require coenzymes.
  • They are inhibited by inhibitors.