On which food component does the salivary amylase act on in humans?
Show answer & explanation
Correct answer: C
Explanation
Correct Answer:
Option 3: Starch
Explanation:
In humans, the enzyme salivary amylase (Ptyalin) acts upon starch (carbohydrates). It converts complex starch into simple sugars (maltose). The process of digestion begins right in the mouth, and this enzyme remains active at a pH of approximately 6.8. Upon reaching the stomach, its activity ceases due to the acidic environment.
Additional Facts:
Option 1: Pepsin acts upon proteins.
Option 2: Lipase acts upon fats.
Option 3: Correct Answer.
Option 4: Vitamins are not digested.
Potential Questions for Upcoming Exams:
Question: Where does Pepsin function?
Answer: Stomach
Question: What does Lipase do?
Answer: Fat digestion
Question: Where does digestion begin?
Answer: Mouth
Question: What is an enzyme?
Answer: A biocatalyst