A-LevelBiologyEnzymesOct/Nov 2021Paper 1 Q101 Mark
Complete hydrolysis of polysaccharides requires all the glycosidic bonds between the monomers to be broken. Enzyme X only breaks α-1,4 glycosidic bonds. Which row shows how completely enzyme X can hydrolyse molecules of glycogen and amylose? [Table showing hydrolysis of glycogen and amylose with a key for ++, +, -]
Aglycogen: +, amylose: ++
Bglycogen: ++, amylose: +
Cglycogen: ++, amylose: -
Dglycogen: -, amylose: ++
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The correct answer is A. This question tests the candidate's understanding of enzymes within the Biologysyllabus. The examiner's mark scheme requires...
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