CXC Integrated Science exam guide: Section A: Food and Nutrition




CXC Integrated Science exam guide: Food and Nutrition

CXC Integrated Science Exam Guide

Section A-The Organism

General objectives of the section:

Candidates should demonstrate an understanding of:

1.

The interdependence of life processes;

2.

The relationship between an organism and its environment;  

3.
The relationship between structure and function of an organism;

Unit II: Food and Nutrition

Specific Objectives

Students should be able to:

Explanatory notes
Suggested Practical Activities

1.  Describe the process of photosynthesis

 

Definition, identification of substrate, conditions and products; word and chemical equations;

outline of process; importance of light, chlorophyll, carbon dioxide and awareness that light energy can be converted to chemical energy.

Experiments to establish conditions for photosynthesis, food test, tests for starch as a product of photosynthesis.

2. Discuss balanced and unbalanced diets

 

Wisdom in food selection; read labels to discern nutritive content; discuss food additives and their effects on health; the six food groups, their sources and functions of their main nutrients; balanced diet related to age, sex, occupation; deficiency diseases (PEM).

Experiments to measure energy value of food.

3. Explain the process of digestion in man

 

Physical and chemical digestion; necessity, role of enzymes; stages with enzymes, substrates and products; absorption.

Draw and label the digestive system of man and state the function of each part;

* identify enzymes, digestive juices and state of acidity/ alkalinity at each stage; experiments on enzymes to show effects of temperature and pH; demonstrate the diffusion of small molecules using a partially permeable membrane; use glucose solution and starch solution.

4. Explain the role of teeth in digestion.

 

Relationship between structure and function; care of teeth; effect of fluoridation.

Draw and label a diagram of a vertical section of a tooth; examine models of individual teeth.

 

 

 

Go to Section A: unit III: Circulation
 


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Boo's picture
Boo (not verified)
Food and nutrition

If u fail ur Paper 2 for Food and nutrition and did great in ur SBA is there a chance of still getting a 2 or 3 ?

Boo's picture
guest (not verified)
This Is Really Helping Me &&

This Is Really Helping Me && iiThank Everyone Who Contributed To Set Out Th Syllabuss For CXC I.S 2012.. Thanks Again ..1 :')

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jaye (not verified)
hsb

can you hook me up with some.

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guest (not verified)
Re: CXC Integrated Science exam guide: Section A: Food and Nutr

bonjour j'aimerai bien avoir des

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