Question

pls tell the answer of this question​

Answer 1

Answers:

1. Microorganism = Bacteria
Explanation: Bacteria in faeces have been extensively studied. It's estimated there are nearly 100 billion bacteria per gram of wet stool. One study that looked at a collection of fresh stools in oxygen-free conditions (as oxygen can damage certain types of bacteria) found almost 50% of the bacteria were alive.

2. Microorganism = The Antibiotic
Explanation: This antibiotic was obtained from a blue green mould of the soil called Penicillium notatum. Penicillin was discovered accidentally in 1928 by Fleming, who showed its efficacy in laboratory cultures against many disease producing bacteria.

3. Role played by Rhizobium = Rhizobia are diazotrophic bacteria that fix nitrogen after becoming established inside the root nodules of legumes (Fabaceae). To express genes for nitrogen fixation, rhizobia require a plant host; they cannot independently fix nitrogen.

4. Role played by Lactobacillus = Your gut is lined with trillions of bacteria that play an important role in your health. Generally, lactobacilli are very good for gut health. They produce lactic acid, which may prevent harmful bacteria from colonizing the intestines. They also ensure the lining of the intestines stays intact ( 50 ).

5. Microorganism = BREAD | Dough Fermentation
Explanation: There are different types of fermentation resulting from the action of yeast and other microorganisms such as lactic acid bacteria. The principal type of fermentation is the action of the yeast on fermentable sugars to produce carbon dioxide (CO2), ethanol, and some aromatic compounds.

6. Microorganism = Bacteria, protozoa and fungi act as decomposers.
Explanation: These decomposers break down organic matter present in the bodies of dead plants and animals into simple substances and mix them in the soil.

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Answer 2

Answer: i) Bacteria

ii) Penicillium

iii) formation of root nodules on plants

iv)metabolize and break down lactose

v)Yeast

vi) Fungi

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