Bchbasic
Select ALL correct enzyme-product pairs in dietary carbohydrate digestion.
Answer
Lactase: lactose to glucose and galactose, Sucrase: sucrose to glucose and fructose, Maltase: maltose to glucose
Explanation
### Why this is right
- Lactase hydrolyzes lactose into glucose and galactose.
- Sucrase hydrolyzes sucrose into glucose and fructose.
- Maltase hydrolyzes maltose into glucose units.
### The concept
Brush-border enzymes complete digestion by hydrolyzing disaccharides into absorbable monosaccharides. The identity of the enzyme determines which glycosidic bond and sugar substrate are processed.
### The other options
- **Trehalase: trehalose to galactose**: Trehalase hydrolyzes trehalose to glucose, not galactose. The substrate-product mismatch makes this option incorrect.
### Terms
- **Hydrolysis**: Bond cleavage using water.
- **Disaccharide**: A carbohydrate made of two monosaccharides.
### Remember
Know each disaccharidase by its substrate and released monosaccharides.
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