Question

Use the diagram and scenario to answer the constructed response question. Marcus recently visited his doctor with complaints of nausea, stomach cramps, bloating, and gas that occur approximately 45 minutes after eating ice cream, cheese, or drinking milk. The doctor’s report indicated that Marcus has an increased production of acidic toxins causing him to have an imbalanced intestinal pH. The doctor concluded he is lactose intolerant. Using claim, evidence and reasoning (CER) format, determine the macromolecule represented by lactose and describe what happens in the body when a person drinks milk, which contains lactose. You must use the terms lactose, lactase, glucose and galactose in your response. (Hint: Use the picture to explain the process.)

Answer 1

well i think this has to do with lactose intolerance Step-by-step explanation:

Answer 2

The Claim: Lactose is a disaccharide macromolecule made up of two monosaccharides, glucose and galactose.

The Evidence: Lactose is the main sugar in milk and dairy, a disaccharide consisting of glucose and galactose linked by a glycosidic bond. The diagram illustrates lactase breaking down lactose into glucose and galactose.

The Reasoning: In lactose intolerance, insufficient lactase prevents complete lactose breakdown. Undigested lactose in the small intestine undergoes bacterial fermentation, generating gases (hydrogen and methane) and acidic toxins. These byproducts contribute to symptoms like nausea, stomach cramps, bloating, and gas.