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Revision Notes
Food Borne Diseases and Food Safety — Revision Notes
Telangana Open School (TOSS) · Class 12 · Community Science (Home Science)
Food Borne Diseases and Food Safety revision notes for Telangana Open School (TOSS) Class 12 Community Science: 4 topics in quick points.
44 questions30 flashcards4 concepts
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Key Topics to Revise
1
Types of Food Borne Diseases
- Food borne diseases are mainly classified into two types: food infection and food intoxication.
- Food infection occurs when live harmful microorganisms are consumed and multiply in the body.
- Food intoxication happens when pre-formed toxins in food are consumed, even if the microorganisms are no longer alive.
2
Causes of Food Borne Diseases
- Main causes: bacteria, viruses, parasites, natural toxins, and chemical contaminants.
- Bacteria like Salmonella, E. coli, and Shigella cause infections with incubation periods of 12–72 hours.
- Viruses like Hepatitis A and Norovirus spread through contaminated food and water.
3
Common Food Borne Illnesses
- Salmonellosis: caused by Salmonella in poultry, eggs, and meat; symptoms include fever, diarrhea, and vomiting.
- Cholera: caused by Vibrio cholerae; leads to severe watery diarrhea and dehydration.
- Shigellosis (Bacillary Dysentery): causes bloody diarrhea and stomach cramps; spreads through poor hygiene.
4
Food Intoxications
- Bacterial intoxications: caused by toxins produced by bacteria in food.
- Staphylococcus aureus: produces toxin in foods like cream pastries; symptoms appear in 1–6 hours.
- Bacillus cereus: causes vomiting (with rice) or diarrhea (with meat); incubation 1–16 hours.
Get complete notes with diagrams and examples
Full NotesKey Concepts
Illnesses caused by consuming contaminated foodFood infection occurs when live pathogensA set of guidelinesHACCP (Hazard Analysis Critical Control Point)
Frequently Asked Questions
What are the important topics in Food Borne Diseases and Food Safety for Telangana Open School (TOSS) Class 12 Community Science (Home Science)?
Key topics in Food Borne Diseases and Food Safety include Types of Food Borne Diseases, Causes of Food Borne Diseases, Common Food Borne Illnesses, Food Intoxications. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Food Borne Diseases and Food Safety for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 44 practice questions on Food Borne Diseases and Food Safety. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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