To solve this problem, we need to identify which of the given options are not secondary metabolites in plants.$\newline$Let's analyze each option:$\newline \bullet$Option 1: Morphine, codeine$\newline$ - Morphine and codeine are alkaloids, which are secondary metabolites.$\newline$ - They are not involved in primary metabolic processes but have ecological functions like defense.$\newline \bullet$Option 2: Amino acids, glucose$\newline$ - Amino acids and glucose are primary metabolites.$\newline$ - They are directly involved in growth, development, and reproduction.$\newline$ - Amino acids are building blocks of proteins, and glucose is a primary energy source.$\newline \bullet$Option 3: Vinblastin, curcumin$\newline$ - Vinblastin is a secondary metabolite used for its medicinal properties.$\newline$ - Curcumin is a secondary metabolite found in turmeric, used for its anti-inflammatory properties.$\newline \bullet$Option 4: Rubber, gums$\newline$ - Rubber and gums are secondary metabolites.$\newline$ - They serve ecological roles such as protection and storage.$\newline$Therefore, the correct answer is Option 2: Amino acids, glucose, as they are not secondary metabolites.