Summer 2026 Predicted
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1 The diagram shows the structure of two polysaccharides found in cells.
Polysaccharide P
Polysaccharide Q
The Table below shows where these polysaccharides are found.
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Polysaccharide Main location Function
P Plant cells Energy storage
Q Animal cells Energy storage
(a) Name polysaccharides P and Q.
(2)
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(b) Using the diagram and table, explain why polysaccharide Q is more
suitable for rapid energy release than polysaccharide P.
(3)
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(c) Both polysaccharides are composed of α-glucose monomers joined by
glycosidic bonds.
(i) Name the type of reaction that joins glucose monomers together.
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(1)
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(ii) State the specific types of glycosidic bonds found in polysaccharide Q.
(2)
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for more papers: tyrionpapers.com
Turn over
for more papers: tyrionpapers.com
,DO NOT WRITE IN THIS AREA
1 The diagram shows the structure of two polysaccharides found in cells.
Polysaccharide P
Polysaccharide Q
The Table below shows where these polysaccharides are found.
DO NOT WRITE IN THIS AREA
Polysaccharide Main location Function
P Plant cells Energy storage
Q Animal cells Energy storage
(a) Name polysaccharides P and Q.
(2)
……………………………………………………………………………………………………………………………………
……………………………………………………………………………………………………………………………………
……………………………………………………………………………………………………………………………………
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(b) Using the diagram and table, explain why polysaccharide Q is more
suitable for rapid energy release than polysaccharide P.
(3)
……………………………………………………………………………………………………………………………………
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……………………………………………………………………………………………………………………………………
(c) Both polysaccharides are composed of α-glucose monomers joined by
glycosidic bonds.
(i) Name the type of reaction that joins glucose monomers together.
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(1)
………………………………………………………………………………………………………………………
(ii) State the specific types of glycosidic bonds found in polysaccharide Q.
(2)
……………………………………………………………………………………………………………………………………
……………………………………………………………………………………………………………………………………
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