Question

Bacteria are both good and bad associates of human. Justify the statement with help of examples.​

Answer 1

Answer:

Some bacteria are good for you, including the bacteria in your digestive system, or gut. These bacteria help to break down food and keep you healthy. Other good bacteria can produce oxygen are used to create antibiotics. Bacteria are used in food production to make yogurt and fermented foods.

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Explanation:

Answer 2

Bacteria are found almost everywhere in the human body, but the maximum number is present in the mouth, gut, and skin. There are some good bacteria that don't harm and are beneficial in protecting against infections. While bad bacteria tend to make humans ill and affect body organs.

Bacteria

• They are single-celled prokaryotic organisms and are one of the oldest organisms to be found on Earth. They can be found almost everywhere in the environment, exist in a variety of shapes like sphere, rod, and spiral.

Good Bacteria

• Good Bacteria are the ones that only affect the host organism and do not harm the human body. Instead, they provide essential nutrients and protect against infections.
• Staphylococcal epidermis is one such good bacteria present on the skin to protect against bad bacteria present in the outer environment.

Bad Bacteria

• When present in the body, bad bacteria tend to multiply and affect the specific organ, making you unhealthy. They can enter the body through food, water, or breathing.
• One such bad bacteria is Streptococcus mutans, present in the mouth, leading to a bad smell. They can be inhibited or killed by antibiotic drugs.

The Human body is mostly bacteria. Out of which, some are good bacteria, which doesn't harm the body, while bad bacteria affect the heath. However, their effect can be inhibited by antibiotics.