class 7 Biology chapter 2 Classification of Plants
A. S. Mishra・3 minutes read
Antibiotics and vaccines combat bacteria and prevent diseases, sewage bacteria produce gas for cooking, and certain bacteria aid in plant growth. Bacteria can spoil food and cause diseases, while amoeba moves using pseudopodia and exchanges gases through cell surfaces.
Insights
- Antibiotics combat harmful bacteria, vaccines prevent diseases such as polio and tuberculosis, while sewage bacteria decompose human waste to produce flammable gas for cooking.
- Bacteria spoil food causing illnesses like typhoid and pneumonia, while amoeba, a eukaryotic organism, uses pseudopodia for movement and diffusion for waste elimination. Oxygen and carbon dioxide exchange happens at the cell surface, with nuclei dividing to create daughter nuclei.
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Recent questions
What are antibiotics used for?
Destroying disease-causing bacteria.
How do vaccines work?
Preventing diseases like polio and tuberculosis.
What is the role of sewage bacteria?
Decomposing human waste to produce inflammable gas.
How do bacteria aid in plant growth?
Providing nutrients in a symbiotic relationship.
How does Amoeba eliminate waste?
Through diffusion.
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Summary
00:00
"Bacteria, Vaccines, and Organisms: A Summary"
- Antibiotics are used to destroy disease-causing bacteria, while vaccines help prevent diseases like polio and tuberculosis. Human waste is decomposed by sewage bacteria, producing inflammable gas collected for cooking. Certain bacteria like rhizobium aid in plant growth by providing nutrients in a symbiotic relationship.
- Bacteria can spoil food quickly, leading to diseases like typhoid and pneumonia. Amoeba, a eukaryotic organism, moves using pseudopodia for digestion and eliminates waste through diffusion. Oxygen and carbon dioxide exchange occurs through the cell surface, with nuclei dividing to form daughter nuclei.
