Biology · May / June 2022 · Paper 22 · Question 4
5090
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The question as text
There are many different types of amino acid. One of these is phenylalanine. The diagram shows the structure of a molecule of phenylalanine. CH2 C COOH H NH2
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4(a)(i)[1]
4(a)(ii)[3]
4(b)(i)[2]
4(b)(ii)[3]
4(b)(iii)[3]
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