IB Biology HL B1.1.3 Digestion by Hydrolysis Question Bank
Practise IB Biology HL B1.1.3 by analysing hydrolysis pathways and enzyme applications in carbohydrate and protein digestion.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Analyse hydrolysis pathways for starch and proteins through the human digestive system.
- Explain enzyme-specific digestion, absorption and lactase applications using reaction products and sites.
B1.1.3—Digestion by hydrolysis question 1
[Maximum number: 2]
Identify two hydrolysis reactions that occur in the small intestine.
a. polysaccharides to disaccharides/monosaccharides
OR
starch/glycogen to maltose
b. sucrose to glucose AND fructose
c. maltose to glucose
d. lactose to glucose AND galactose
e. proteins/peptides/polypeptides to shorter peptides/amino acids
OR
dipeptides to amino acids
f. triglycerides/lipids/fats/oils to glycerol AND fatty acids
2 max
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