After watching a TV programme about carcinogens (potassium bromate and potassium iodate) in bread and bakery products, Rupali, a Class XII student, campaigned for her school canteen to replace bakery products with protein- and vitamin-rich food like fruits, salads and sprouts; the principal acted on it.
(a) What values (at least two) are displayed by Rupali?
(b) Which polysaccharide component of carbohydrates is commonly present in bread?
(c) Write the two types of secondary structures of proteins.
(d) Give two examples of water-soluble vitamins.
(a) What values (at least two) are displayed by Rupali?
(b) Which polysaccharide component of carbohydrates is commonly present in bread?
(c) Write the two types of secondary structures of proteins.
(d) Give two examples of water-soluble vitamins.
Solution
(a) Rupali shows \textbf{concern for others' health}, \textbf{social awareness}, scientific attitude and leadership/initiative.
(b) Bread's polysaccharide is \textbf{starch}.
(c) The \textbf{α-helix} and the \textbf{β-pleated sheet}.
(d) \textbf{Vitamin B complex} (e.g. B) and \textbf{vitamin C}.
(b) Bread's polysaccharide is \textbf{starch}.
(c) The \textbf{α-helix} and the \textbf{β-pleated sheet}.
(d) \textbf{Vitamin B complex} (e.g. B) and \textbf{vitamin C}.
CBSE Class 12 Board · 2017 · Subjective