1. Materia: Biology Senior 3
Profesora: Ma. Magdalena Ravagnan
Contenido nodal: Nutrition and transport in humans
SEGUNDO TRIMESTRE
Fecha de presentación: Tuesday December 10th
A- Enzymes
(a) What is an enzyme?
(b) State the conditions in which enzymes work best.
(c) Outline the parts played by named enzymes in each of the following processes.
i- protein digestion in the alimentary canal.
ii- fat digestion in the alimentary canal.
iii- starch digestion in the alimentary canal.
B- Human nutrition
1) Fig.1 shows the human digestive system

2. (a) Label on the diagram: mouth- oesophagus- stomach- small intestine- large intestine- anusLiver- pancreas- gall bladder
(b) Using the appropriate letter, label where each of the following is produced:
- an amylase,
- hydrochloric acid,
- a lipase,
(A)
(B)
(C)
- bile
- pepsin
b)
(E)
- absorption (F)
2) Table 1 shows information about the composition of a fruit.
a)
(D)

3. c)