Practice Questions

TLS Online TPP Program

#Question id: 12434

Nitrifying bacteria participate in the nitrogen cycle mainly by

#Unit 10. Ecological Principles

Converting nitrogen gas to ammonia.
Releasing ammonium from organic compounds, thus returning it to the soil.
Converting ammonia to nitrogen gas, which returns to the atmosphere.
Converting ammonium to nitrate, which plants absorb.

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TLS Online TPP Program

#Question id: 20316

#Unit 7. System Physiology – Animal

Which of the following statements best describes Cushing's syndrome?

TLS Online TPP Program

#Question id: 20317

#Unit 7. System Physiology – Animal

Which of the following statements correctly describes the pathophysiology of Cushing's disease?

TLS Online TPP Program

#Question id: 20318

#Unit 4. Cell Communication and Cell Signaling

Which statement is not correct about bacterial quorum sensing?

TLS Online TPP Program

#Question id: 20319

#Unit 4. Cell Communication and Cell Signaling

What is the purpose of quorum sensing?

TLS Online TPP Program

#Question id: 20320

#Unit 4. Cell Communication and Cell Signaling

What processes controlled by quorum sensing-

a. Bioluminescence

b. Production of virulence factors

c. Formation of biofilms

d. Competence for uptake of DNA

e. Antibiotic production

Which one of the following combinations of above statements is correct?

TLS Online TPP Program

#Question id: 20321

#Unit 4. Cell Communication and Cell Signaling

Quorum sensing receptors are-

a. histidine sensor kinases

b. cytoplasmic transcription factors

c. tyrosine kinases