第 1 題
1 分The formation of a disaccharide involves a condensation reaction. Which of the following pairs of monosaccharides react to produce maltose?
Pearson Edexcel A Level · Biology B (9BI0)
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第 2 題
1 分Which combination of monosaccharides and glycosidic bond type correctly describes the formation of a lactose molecule?
第 3 題
1 分The hexose sugar glucose exists as two primary isomers: \(\alpha\)-glucose and \(\beta\)-glucose. Which of the following correctly identifies the structural difference between these two molecules?
第 4 題
1 分Which of the following correctly describes ribose based on the number of carbon atoms it contains?
第 5 題
1 分Starch is composed of two different polysaccharides, amylose and amylopectin. Which statement correctly describes a structural difference between these two molecules?
第 6 題
5 分Evaluate why amylopectin is a more suitable molecule for rapid energy mobilization in muscle cells compared to amylose, with reference to glycosidic bonding.
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第 7 題
6 分Polysaccharides serve as either energy stores or structural components.
(a) Describe the structural differences between amylopectin and glycogen and explain how these differences relate to the metabolic rates of plants and animals.
(b) Cellulose is a polymer of \(\beta\)-glucose. Explain how the arrangement of glycosidic bonds in cellulose leads to the formation of microfibrils.
(c) Identify the products formed when a molecule of sucrose undergoes a hydrolysis reaction.
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