CXC Integrated Science exam guide: Section B: Pests and parasites/sanitation
Submitted by Kathy-ann Daniel on 1 October 2009 - 12:59pm
CXC Integrated Science exam guide: Pests and parasites/sanitation
CXC Integrated Science Exam Guide
Section B-The Home/Workplace
General objectives of the section:
Candidates should demonstrate an understanding of:
| 1. |
the soil and the sea as two most important outdoor working environments in the Caribbean and that they are both natural resources as well as ecosystems
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| 2. |
the relationship between humans and the environment in which they work
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| 3. |
the need for appropriate physical conditions such as ventilation and sanitation in the home and the workplace
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| 4. |
the inter-conversion and conservation of the different forms of energy;
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| 5. |
the occurrence of accidents and hazardous situations and safety measures used in their prevention.
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| Unit III: PESTS AND PARASITES/SANITATION |
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Specific Objectives
Students should be able to: |
Explanatory notes
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Suggested Practical Activities
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1. Describe the conditions which promote the growth of micro-organisms;
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Procedures for retarding and preventing the growth of bread mould
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2. Discuss conditions that encourage the breeding of household pests;
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Cockroaches, flies, rats, mosquitoes.
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3. Discuss the principles of food preservation;
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Toxins, salting, drying, pickling, heating, refrigeration, adding sugar and treating with other preservatives;
the effects of microorganisms on food.
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4. Discuss the different types of waste;
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Domestic, industrial and biological waste. |
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5. Discuss the need for personal and community hygiene
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The importance of the state disposal of waste, adequate toilet and sewage disposal facilities, garbage collection and disposal.
Uses to which waste can be put for example, recycling, biogas production;
environmental effects such as pollution of potable water, food contamination, increase in pest population; prediction of their consequences;
assessment of the effects of unsanitary conditions on the spread of pathogenic microorganisms.
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| 6. * discuss the role of antigens and antibodies in natural and artificial control of diseases |
Vaccines; an awareness of AIDS as a disease which results from damage to the immune system. |
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| Go to Section B: Unit IV: SAFETY HAZARDS |
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