This document contains a biology lesson plan covering the topics of enzymes, human nutrition, and the digestive system. It includes tables to complete on enzyme substrates and products, as well as the roles of different organs. Students are asked questions about the effects of boiling on enzymes and the advantages of dietary fiber. Micronutrients essential for bone and tooth development must also be named. A diagram labels sites of absorption, bile production, glycogen storage, and lipase production in the alimentary canal. The first organ blood flows to from the small intestine and two adaptive features of absorptive cells in the small intestine villi are also requested.

1. Materia: Biology Senior 3
Profesora: Ma. Magdalena Ravagnan
Contenido nodal: Nutrition and transport in humans
SEGUNDO TRIMESTRE
Fecha de presentación: February 2016
A- Enzymes
1) i- Complete the table:
SUBSTRATE ENZYME PRODUCT
Starch
Protease
Fatty acids + glycerol
ii- Explain what happens to the activity of an enzyme when it is boiled.
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B- Human nutrition
1) (a) Fibre in the human diet contains a lot of cellulose that humans cannot digest.
(i) State two advantages to humans of including fibre in the diet.
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2. (b) Micronutrients are components of the diet that are only needed in very small quantities.
Name two micronutrients that are essential for the healthy development of bones and teeth.
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2 ………………………………………………..[2]
2) Complete the following table:
3) Fig. 6.1 shows the alimentary canal and associated organs
(a) On Fig. 6.1, Name and label the sites of each of the
following processes:
(i) absorption of water
(ii) bile production
(iii) glycogen storage
(iv) lipase production

3. (b) Name the first organ to which blood flows from the small intestine.
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(c) The cells of the surface layer of the villus are involved in absorption.
State two features of these cells that improve absorption.
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