Question

1. peter does not experience symptoms after he drinks a tall glass of milk. what molecule do you think is more abundant in peters digestive system and deficient in marias digestive system? explain your reasoning.

Explanation:

Lactose is the sugar in milk. Lactase is the enzyme that breaks down lactose into galactose and glucose. Peter can drink milk without symptoms, so he likely has enough lactase. Maria, if she had symptoms (assuming a typical lactose - intolerance scenario), would lack lactase.

Answer:

The molecule (enzyme) lactase is more abundant in Peter's digestive system and deficient in Maria's (assuming Maria has lactose - intolerance symptoms).