(a) Give one reaction of D- glucose which cannot be explained by its open chain structure . (b)Give one example each for essential and non essential amino acids (c) Differentiate between keratin and insulin .

Question

$\begin{array}{1 1}\text{(a) (a) Essential Amino Acid - Lysine , Non Essential Amino Acids - Valine (b) (b) Keratin is a fibrous protein whereas insulin is a globular protein .}\\\text{(b) (a) Essential Amino Acid - Lysine , Non Essential Amino Acids - Glycine (b) (b) Keratin is a fibrous protein whereas insulin is a globular protein .}\\\text{(c)(a) Essential Amino Acid - Proline , Non Essential Amino Acids - Leucine(b) (b) Keratin is a fibrous protein whereas insulin is a globular protein }\\(d)\; \text{None of the above}\end{array} $