F4 Biology WS 11 ans

5 Food and humans

WS 11

1

(a)    (i)     Potatoes and honey                                                                                                 2

        (ii)    Potatoes are rich in starch.                                                                                      1

                Honey is rich in glucose and fructose.                                                                    1

(b)    (i)     Cheese and canned sardines                                                                                   2

(ii)    Calcium                                                                                                                   1

                It is essential for the formation and hardening of bones.                                       1

(c)    Dietary fibre                                                                                                                  1

It adds bulk to food to stimulate peristalsis of the gut.                                                  1