Biology 0610 · IGCSE · Enzymes

Enzymes — practice question

Orphaned young mammals may be fed from a bottle. Fig. 6.1 illustrates a tiger cub that has just been born and is suckling from a bottle.
(a(i))[1]

State the term used for involuntary actions.

(a(ii))[4]

Describe how breast-feeding is beneficial in comparison with bottle-feeding.

(b(i))[3]

Complete Table 6.1 by giving the substrate and product(s) for each enzyme reaction.

(b(ii))[2]

Suggest why the temperature of baby food has to be regulated when the enzymes are added.

(b(iii))[1]

State one additional condition that must be controlled to maximise enzyme activity.

Worked solution & mark scheme

This 11-mark question has a full step-by-step worked solution and mark scheme. One marking point: reflex action

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI