(iii) alkali / suitable named example accept sodium hydrogen carbonate / sodium bicarbonate / milk of magnesia / brand names allow bile (salts) ignore antacid 1 (b) amylase breaks down starch • 1 (broken down) into sugars / glucose • 1 digestion of starch in the mouth • 1 (also) starch broken down in intestine • 1 amylase produced in salivary glands / small intestine / pancreas • 1 (c) small intestine allow ileum / duodenum do not accept large intestine 1 [9] M5. (a) opaque / less transparent / blue allow mixture becomes dark / black ignore thicker 1
(iii) alkali / suitable named example accept sodium hydrogen carbonate / sodium bicarbonate / milk of magnesia / brand names allow bile (salts) ignore antacid 1 (b) • amylase breaks down starch 1 • (broken down) into sugars / glucose 1 • digestion of starch in the mouth 1 • (also) starch broken down in intestine 1 • amylase produced in salivary glands / small intestine / pancreas 1 (c) small intestine allow ileum / duodenum do not accept large intestine 1 [9] M5. (a) opaque / less transparent / blue allow mixture becomes dark / black ignore thicker 1
b3_digestion_mark_scheme.docx