Food Poisoning
Trending Questions
What is food poisoning?
What is biological nitrogen fixation? Give one example.
Why should you always wash your hands before handling food and after coming from the toilet?
Answer: many people touch object in the washroom with their dirty hands like after sneezing or after coming from outside. This leads to spreading of germs or tiny organisms which cannot be seen through naked eyes known as microorganism. As the washroom are warm this may lead to rapid growth of microorganism. After we use the washroom these microorganism may still remain in our hand so if we handle the food without washing our hands there are chances that these microorganism might enter our body which may harm our body. Hence it is advisable that we should wash our hands after coming from the washroom before handling food.
After consuming a dish of mutton, a person complained of nausea, vomiting, diarrhoea, and pain in the abdomen.
(a) What type of diswase is he suffering from ?
(b) What causes this disease ?
Give reasons for the following:
(a) Fresh milk is boiled before consumption while processed milk stored in packets can be consumed without boiling.
(b) Raw vegetables and fruits are kept in refrigerators whereas jams and pickles can be kept outside.
(c) Farmers prefer to grow beans and peas in nitrogen deficient soils.
(d) Mosquitoes can be controlled by preventing stagnation of water though they do not live in water. Why?
Name a microbe producing nitrogen-fixing nodules on roots of non-leguminous plants.
What is food poisoning ? How is food poisoning caused ?
Write a short note on Nitrogen-fixing bacteria.
Explain the role of nitrogen-fixing bacteria in fixing atmospheric nitrogen.
Paheli watched her grandmother making mango pickle. After she bottled the pickle, her grand mother poured oil on top of the pickle before closing the lid. Paheli wanted to know why oil was poured? Can you help her understand why?
Statement 1: Microorganisms are always harmful in nature.
Statement 2: Harmful microbes are the causative agents of diseases.
Statement 1: True
Statement 2: False
Statement 1: False
Statement 2: False
Statement 1: False
Statement 2: True
Statement 1: True
Statement 2: True
What are food-borne diseases?
Give a reason why pasteurization is used to preserve milk.
Vinegar is commonly used to preserve jams and sauces.
- True
- False
Assertion — Salting is used for preserving meat and fish by common salt.
Reason — It does not allow the growth of bacteria.
If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
If Assertion is correct but Reason is incorrect.
If Assertion is incorrect but Reason is correct.
Question 5
What are the major groups of microorganisms?
- Denitrification
- Ammonification
- Nitrification
How can biting your nails be harmful to your health?
It makes your nails too short.
It transfers bacteria between your mouth and hands.
It makes your teeth more brittle.
It prevents bacteria from digesting food in your mouth.
How nitrogen is recycled back into the atmosphere? How Rhizobium helps in nitrogen fixation?
What do we do to the leather materials infected by fungus or mould?
Food poisoning is the illness caused by eating food items contaminated by bacteria, virus, etc.
True
False
How is food poisoned by microorganisms?
- By destroying the nutrients of food
- By producing toxic substances
- By injecting some poisons into the food
- By allowing other harmful bacteria to grow on food
- It is a bacterium which infects other bacteria and plants.
- It is a type of virus which infects bacteria.
- It is a bacterium which kills viruses.
- It is a virus which can reproduce independently.
- Refrigeration
- Acidification
- Pickling
If the milk is not pasteurized, will it be fit for drinking? Give a reason.
Priya wants to see the apples that are kept cold will rot or stay edible. So she places the apple in the refrigerator and records the date. What she should use as a control?
sodium chloride
sodium metabisulphite
both of these
none of these
Milk can be preserved by ________ technique.
Statement I: Preservatives are added to prevent the growth of microorganisms.
Statement II: Antibiotics kill or stop the growth of pathogens.
- Statement I is true.
- Both statements are false.
- Statement II is true.
- Both statements are true.
Assertion — Salt is added to chips and pickles.
Reason — Salting removes oxygen from the food item.
If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
If Assertion is correct but Reason is incorrect.
If Assertion is incorrect but Reason is correct.
