IB Biology HL B1.1.4 Form and Function of Monosaccharides Questions

Practise IB Biology HL B1.1.4 by identifying glucose, fructose, galactose and ribose structures and linking polarity and ring form to function.

Exam points

Identify glucose, fructose, galactose and ribose from names or structural diagrams, including D-ribose ring form.
Distinguish alpha- and beta-D-glucose from the hydroxyl orientation at carbon 1.
Relate glucose polarity and solubility to transport in blood plasma.

[Maximum number: 3]

A wide variety of organic compounds are used by living organisms.

Draw a diagram to show the ring structure of D-ribose.

ring with four carbons and one oxygen atom;
$\mathrm{CH}_{2} \mathrm{OH}$ attached to C 4 ;
OH and H attached by single bonds to C 1, C 2 and C 3 with OH facing downwards on C2 and C3;

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IB Biology HL B1.1.4 Form and Function of Monosaccharides Questions question 1