O-LevelBiologyHuman Nutrition5090/22 · Oct/Nov 2015 · Q610 Marks
Describe the digestive processes that take place in the mouth (buccal) cavity of a human.
- (a)Describe the digestive processes that take place in the mouth (buccal) cavity of a human.[6]
- (b)Explain how food moves from the mouth (buccal) cavity to the stomach.[4]
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2015). The mark or mark type is shown in brackets.
- [max 6] any named tooth; cut / tear food * ; crush / grind / smash food * ; ref. saliva(ry); moistening / lubricating / softening; ref. action of tongue ; ref. to (optimum) pH ; (salivary) amylase ; acts on starch; changing it to maltose ; ref. terms mechanical / chemical + digestion ;
- [max 4] ref. swallowing ; peristalsis; oesophagus / gullet; wave of / rhythmic contraction AW ; of circular muscles ; behind / pushing + food / bolus;
Write your answer and get it marked
On Oracle Prep you can write or photograph your own answer and have it marked by AI against this mark scheme, with feedback on what you missed.
Sign up free →