HOH
2 C
HOH
2 C
HOH
2 C
HOC
HOH
2 C
O
1
1
1
1
1
1
4
4
4
6
4
H
O
O
O
O
O
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O
O
O
Cellulose
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OH
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O
H
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O
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hydrogen bonds
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hydrogen bond
H
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H
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HOH
2 C
HOH
2 C
HOH
2 C
HOH
2 C
HOH
2 C
H
2 C
HOH
2 C
1
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4
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6
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5
4
4
3
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1
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3
5
6
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O
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O
O
O
O
O
O
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OH
OH
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HO
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O
O
O
O
O
Starch amylose
Starch amylopectin
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