Enzymes are biological catalysts. Enzyme molecules are formed from chains of amino acids joined together. Which pair of elements is found in all amino acids? (1)

A.
carbon and oxygen
B.
carbon and sulfur
C.
nitrogen and magnesium
D.
oxygen and magnesium
Biology
IGCSE&ALevel
EDEXCEL
Exam No:wbi11-01-que-20240508. Year:2024 Question No:(a)

Answer:

A

Knowledge points:

CH2 – Membranes, Proteins, DNA and Gene Expression

Solution:

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