11. Which of the following is an example of an enzyme?
Answer: C
Amylase is an example of an enzyme.
Enzymes are biological catalysts that speed up chemical reactions in living organisms. Amylase specifically catalyzes the breakdown of starch into sugars, making it a prime example of an enzyme.
A) ATP
ATP, or adenosine triphosphate, is not an enzyme; rather, it is a molecule that stores and transfers energy within cells. While ATP is crucial for cellular processes, it does not function as a catalyst in biochemical reactions.
B) Estrogen
Estrogen is a steroid hormone involved in the regulation of various physiological processes, particularly in the reproductive system. Although it plays essential roles in the body, it does not act as an enzyme or catalyze chemical reactions.
C) Amylase
Amylase is an enzyme that facilitates the hydrolysis of starch into sugars, making it a perfect example of an enzyme. It is found in saliva and the pancreas, aiding in digestion by breaking down carbohydrates.
D) Sucrose
Sucrose is a disaccharide composed of glucose and fructose, commonly known as table sugar. It does not have catalytic properties and is therefore not classified as an enzyme.
Conclusion
Amylase, as the correct answer, exemplifies the function and role of enzymes in biological systems. In contrast, ATP, estrogen, and sucrose serve different functions and do not catalyze chemical reactions, reinforcing the importance of distinguishing between enzyme types and other biomolecules.