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Zarrin [17]
3 years ago
10

In patients infected with nonresistant strains of the tuberculosis bacterium, antibiotics can relieve symptoms in a few weeks. H

owever, it takes much longer to halt the infection, and patients may discontinue treatment while bacteria are still present. How might this result in the evolution of drug-resistant pathogens?
Biology
1 answer:
Natali [406]3 years ago
8 0

Answer:

Infectious dose refers to the minimum number or amount of pathogens required in order to produce a disease or its symptoms. In the given case, the bacterium is non-resistant and is treated with antibiotics.

The antibiotics help in neutralizing the infectious agents; however, full course should be done to eliminate the infectious agent completely out of the body.

If the course is left in between then, there are very high chances that some bacteria may survive. They might not produce disease or symptoms as they would be less than infectious dose.

However, with time, the survived bacteria gain more and more mutations during replication which can develop antibiotic resistance capability in them.

In addition, it is also possible that the survived bacteria can get R-plasmid (which has antibiotic resistant gene) from body's normal flora or from any other infectious agent present in the body by the process of transformation or conjugation.

The R-plasmid enables them to survive even in the presence of antibiotics due to which the treatment of the disease might become difficult.

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3 years ago
State which enzyme probably camr from the stomach of the mondoni
svetlana [45]

Hi,

I browsed through internet about the enzymes and found that there is an exercise with a list of three enzymes and probably you want to know, which are the enzymes that came from the stomach of Mondoni-a little mammal organism.

Please see the graphs i found, they contain the pH and temperature of the enzymes. So, we need to find the enzymes of Mondoni on the basis of these pH and temperature values.

The enzymes that came from Mondoni's stomach are A and B. These enzymes performed well at low pH and this indicates that they are probably digestive enzymes and have acidic nature.

Moreover, enzyme A and B perform better in low temperature and performed worst in extreme temperature like 80 degree Celsius. Their temperature range also matches with the temperature of mammals, therefore enzyme A and B came from Mandoni.

Hope it helps! :)

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What is photosynthesis ​
Marysya12 [62]

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The given statement is false.

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The axon terminals of pre-synaptic nerve cell release chemical messengers (also called neurotransmitters) in the synaptic cleft. These messengers then bind to the receptors present on the post-synaptic nerve cell and regenerate the nerve impulse.

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Explanation:

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