Glucose combines with _ to form milk sugar.
Correct answer: B. Galactose
- A. Glucose
- B. Galactose
- C. Fructose
- D. Mannose
Explanation
Glucose: Glucose is a monosaccharide, which means it is a single sugar unit. While glucose is an important carbohydrate and serves as a source of energy for the body, it does not combine with itself to form milk sugar. Galactose: Galactose is another monosaccharide and is crucial for the formation of lactose, which is the milk sugar. Lactose is a disaccharide composed of one molecule of glucose and one molecule of galactose linked together by a glycosidic bond. When lactose is hydrolyzed, it breaks down into its constituent monosaccharides, glucose, and galactose. Fructose: Fructose is a monosaccharide, and it is the sweetest of all naturally occurring sugars. While fructose is commonly found in fruits and honey, it does not combine with glucose to form milk sugar. Mannose: Mannose is another monosaccharide, and it is important for various cellular processes in the body. However, it does not combine with glucose to form milk sugar. In summary, the correct option is b) Galactose. Glucose combines with galactose to form lactose, which is the milk sugar found in the milk of mammals.
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