Question 1 From the following list select mechanism(s) of antibiotic resistance

Question

Question 1

From the following list select mechanism(s) of antibiotic resistance described in bacteria

Impermeability to the antibiotic

Antibiotic production

Production of antibodies

d

3.

B and C are correct

Opposite to broad-spectrum antibiotics, narrow-spectrum antibiotics often and severely alter the normal flora in the body

True

False

Proteins embedded in biological membranes could be implicated in the transport of

Hydrophilic compounds

Hydrophobic compounds

Hydrophobic compounds only in Gram negative bacteria

Hydrophobic compounds only in Gram positive bacteria

Question 4

All of the following microorganisms (A to D) produce the same antibiotic. Which of them would you select for industrial scale production of this antibiotic?

Microorganism A grows very well in a very expensive culture medium

Microorganism B in addition to produce the highest level of the desired antibiotic causes a lethal infection in cows and is transmitted very efficiently

Microorganism C is genetically unstable

It has been very well documented that microorganism D still produces the desired antibiotic when cultured in a 40 000 L biofermentor

Question 5

The flagellum is an important bacterial structures implicated in the organization and formation of biofilms.

True

False

Select the mechanism of lateral gene flow in which the DNA is transferred by a virus (bacteriophage or phage) to another cell

Transformation

Transduction

Transfection

Conjugation

Question 7

What is the more likely mechanism of lateral gene transfer that operate during an effective antibiotic treatment that destroy 80% of the bacteria population?

Transfection

Transduction

Transformation

Conjugation

Question 8

Mycoplasma are bacteria that do not produce peptidoglycan, therefore they will test negative in the Gram staining.

True

False

Question 9

Pili allow bacteria to

Attach to the host

Attach to other microorganisms

Locomotion

All the statements above are correct

Question 10

Pili are an important bacterial structures implicated in the organization and formation of biofilms.

True

False

a.

Impermeability to the antibiotic

b.

Antibiotic production

c.

Production of antibodies

d

3.

B and C are correct

Opposite to broad-spectrum antibiotics, narrow-spectrum antibiotics often and severely alter the normal flora in the body

True

False

Proteins embedded in biological membranes could be implicated in the transport of

a.

Hydrophilic compounds

b.

Hydrophobic compounds

c.

Hydrophobic compounds only in Gram negative bacteria

d.

Hydrophobic compounds only in Gram positive bacteria

Explanation / Answer

Answer:

1) Impermeability to the antibiotic

2)False,

3)Hydrophobic compounds

4)It has been very well documented that microorganism D still produces the desired antibiotic when cultured in a 40 000 L biofermentor

5)True

6)Transduction

7)Conjugation

8)True

9) All the statements above are correct

10)True

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.