1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gwar [14]
3 years ago
15

Why do resistant bacteria multiply faster after a patient has taken antibiotics compared to a healthy person who has not taken a

ntibiotics?
Biology
1 answer:
Alenkasestr [34]3 years ago
4 0

Answer:

When patient takes in antibiotics the resistance bacteria gets a competitive survival advantage over the normal sensitive bacteria and hence grows faster.

Explanation:

  • Bacteria can acquire resistance by taking in plasmids containing MDR (Multi-Drug Resistance) gene cassettes. The MDR genes produces proteins that can:
  1. Render the antibiotic ineffective to act on its target by inducing chemical modifications on the drug.
  2. Promote efflux of the drug from the bacterial cell so that the drug cannot act upon its target.
  • When a healthy person ( having no prior exposure to the antibiotic) is infected by bacteria ( both sensitive and resistant varieties):
  1. A competition develops for the host cells and nutrients between the sensitive and the resistant variety.
  2. This mutual competition restricts either of the sensitive or resistant bacterial strain to grow profusely.
  • When a person (having prior antibiotic exposure), gets infected by bacteria ( both sensitive and resistant varieties) and is exposed to the same antibiotic:
  1. The sensitive variety, due to its sensitivity towards the drug, gets killed.
  2. The resistant variety, due to its MDR genes, bypasses the lethal effect of the drug and survives.
  3. These surviving resistant bacteria can now infect all the available host cells and utilise all the available nutrients without facing any competition and multiply rapidly.
You might be interested in
) This is a condition or illness that prevents the body or mind from working normally.
Ivahew [28]

Answer:

Disease

Explanation:

Disease:

  • An abnormality or deviation from normal structure and function of the mind or the body is termed as a disease.
  • This can include a physical or physiological injury or malfunction.
  • A disease exhibits symptoms or manifestations that can be used to identify it. Therefore, the normal structure and function must also be studied.
  • The scientific study of diseases is called pathology. This includes investigating the cause or etiology of the disease as well as its pathogenesis, treatment and prognosis.
4 0
4 years ago
Read 2 more answers
Which of the following would be one way a farmer could increase the amount of available nitrogen in his fields without adding a
katovenus [111]

The correct answer is:

Grow a legume crop to support the development of root nodule

The best way that a farmer could increase the amount of nitrogen in his fields without adding synthetic fertilizer is to grow a legume crop to support the development of root nodules. This is because legumes have a symbiotic relationship with bacteria found in the soil. 

Explanation:

Legumes use nitrogen fixing bacteria, specifically symbiotic rhizobia bacteria, within their root nodules to counter the limitation.The plant root cells convert sugar into organic acids which then supply to the rhizobia in exchange, hence a symbiotic relationship between rhizobia and the legumes.

4 0
3 years ago
Read 2 more answers
In the Punnett square, fill in the shaded boxes with the alleles of each parent. Use B for the
Liono4ka [1.6K]

Answer: the blue squares are B and the white squares are BB

6 0
3 years ago
Which of the following is a type of wave that does not need a medium though which to travel?
LenaWriter [7]

Answer:

The answer is D) Transverse

Explanation:

Electromagnetic waves which are in transverse (by nature) can travel withought a medium.

7 0
2 years ago
Read 2 more answers
Name to types of evidence that scientist used to support the theory of evolution?
Sergio [31]
Evidence of evolution. Scientists support the evidence of evolution because of the adaptations organisms used to have in the past compared to the present. For example, humans have organs in their bodies they don't need, but must have been used in ancient times. They can also find that humans have a common ancestor such as monkeys because of the DNA similarities and many adaptations. Hopefully this answered most of your question.
8 0
3 years ago
Other questions:
  • What molecule is this?​
    8·1 answer
  • What is an example of a neuroendocrine gland?
    6·1 answer
  • What is the functional group in Sucrose?
    14·1 answer
  • You have been called for a​ 6-year-old male patient with shortness of breath. On​ scene, you find the patient with a runny nose
    9·1 answer
  • explain why different gametes produced by the same person can have different alleles for two genes that are located at apart on
    9·1 answer
  • A male patient presents with the following respiratory volumes and capacities : tv= 500 ml ; erv=1200 what is the patients vc.?
    12·2 answers
  • Which reaction is responsible for the production of lipids, when glycerol is joined to three fatty acids? A) dehydration B) hydr
    7·1 answer
  • PLEASE HELP I NEED THIS FAST PLEASE
    6·1 answer
  • How are the same procesess of mitiosis and meosis simullar to each other?
    5·1 answer
  • The energy that fuels winter storms comes from
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!