Answer: Alpha-1,2-glycosidic.
- A Alpha-1,4-glycosidic
- B Beta-1,4-glycosidic
- C Alpha-1,2-glycosidic
- D Beta-1,6-glycosidic
Correct answer: C. Alpha-1,2-glycosidic
Explanation: Sucrose is formed by an alpha-1,2-glycosidic bond between glucose (C1) and fructose (C2). This bond makes sucrose a non-reducing sugar.
As substrate concentration rises, reaction rate increases steeply at first, then plateaus at Vmax once every enzyme molecule is working at full capacity; Km is the substrate concentration giving half-maximal rate, and a LOWER Km means the enzyme reaches that rate with less substrate (higher affinity).
Concept context
Carbohydrates, proteins, lipids, nucleic acids, and enzyme kinetics. Essential foundation for understanding metabolism.