Unit 2: Form and Function
Topic 2.1: Carbohydrates and Lipids Questions
Practice 20 exam-style questions for IB Biology Topic 2.1. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.
1Identify1 mark
Two monosaccharides are joined together by a condensation reaction.
Which products are formed?
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When two monosaccharides join, a new covalent bond forms between them.
What is this bond called?
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Which type of reaction breaks a disaccharide down into two monosaccharides?
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What is the single structural difference between alpha-D-glucose and beta-D-glucose?
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State the type of reaction that breaks a disaccharide down into two monosaccharides.
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A fatty-acid chain contains one carbon-to-carbon double bond (C=C).
What type of fatty acid is this?
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State the name of the reaction that forms the ester bond when a fatty acid joins glycerol.
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Starch, glycogen and cellulose are all polysaccharides.
Which monosaccharide is the monomer of all three?
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Which two kinds of molecule join together to build a single triglyceride?
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State the chemical formula of a glucose molecule.
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Which statement about a monosaccharide is correct?
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Which molecule do animals use as their main long-term energy store?
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A phospholipid diagram labels the rounded head region X and the two long tail regions Y.
Which row states the properties of X and Y correctly?
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State the term used to describe a molecule that contains both a water-loving part and a water-fearing part.
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Which part of a phospholipid is hydrophilic?
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Which description correctly matches the structure of cellulose?
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Distinguish between a monosaccharide and a disaccharide.
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In a condensation reaction that joins two monomers, what happens to water?
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What is the main role of cellulose in a plant cell?
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What property of a single carbon atom is mainly responsible for the huge variety of biological molecules?
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