Question

"bacteria are both good and bad associates of human civilization ". justify this statement.​

Answer 1

Answer:

Bacteria are both they are Good and Bad for human being . Bad bacteria harm us they harm our internal organs and we fall sick. they affect first immune system then slowly they grow up by fission in them . But beside this good bacteria helps to fight with bad bacteria and other foreign viruses . this good bacteria helps to build our immune system strong ..

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Answer 2

ᴘᴀɴᴛʜᴇʀɪᴏ's Response:-

“Bacteria are both good and bad associates of human civilization”.

Reason:-

Advantages of Bacteria:-

1. Medicinal Purposes:-

• Some bacteria secrete chemicals which are used as cure for any other infections. They is known as anti biotics.
• E.g. - Penicillin (first anti biotic discovered ever) is used as cure for many infections.

2. Part of Human body:-

• Bacteria are present in our body everywhere and they are harmless too. They help us in many ways.
• Probiotic helps us in digestion.

3. Human Consumption Purposes:-

• Humans use yeasts in bakery items to make it soft to eat.
• Bacteria converts carbohydrates and sugars to alcohol. Or, the products are used as alcoholic beverages.
• Bacterium known as Lactobacillus helps us in convertion of milk to lactic acid or curd.

4. Protecting our environment:-

• Bacteria helps us in decomposition of dead and decaying matter.
• They return the nutrients to the soil.
• Thus, this supports the food web.

Disadvantages of Bacteria:-

1. Spoilage of Food items:-

• Bacteria has a capability to spoil food items kept in suitable condition.
• Thus, useful food item can't be consumed.

2. Dangerous Diseases:-

• Bacteria are known for their harmful activities the most.
• Bacterial diseases can cause even death too.
• Diseases like Cholera, Tuberculosis, Anthrax are caused by bacteria.