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TLS Online TPP Program

#Question id: 613

Ethanol (CH3CH2OH) is the alcohol found in beverages. It is oxidized in the body to acetaldehyde by the enzyme alcohol dehydrogenase. Methanol (CH3OH), also known as wood alcohol, is converted to formaldehyde by the same enzyme. Acetaldehyde is toxic, but formaldehyde is far more toxic to humans, which is why the ingestion of relatively small amounts of methanol can cause blindness or death. One treatment for mild methanol poisoning is the administration of ethanol. Why might a doctor choose this treatment?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. Ethanol must act as a competitive inhibitor for the alcohol dehydrogenase and therefore slows the formation of formaldehyde.

  2. Ethanol likely irreversibly binds to alcohol dehydrogenase which prevents the formation of formaldehyde.

  3. The ethanol is likely an uncompetitive inhibitor and binds to a site other than the active site of the enzyme.

  4. The doctor has given up on the patient and administers ethanol for sedation.

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TLS Online TPP Program

#Question id: 7583

#General Aptitude

A boy travelled from the home to the college at the rate of 25 kmph and walked back at the rate of 4 kmph. If the whole journey took 5 hours 48 minutes, Find the distance of the college from the home
TLS Online TPP Program

#Question id: 11460

#Unit 7. System Physiology – Animal

The round window ________.

I) dampens fluid vibrations

II) collects sound pressure waves

III) detects the frequency of sounds
TLS Online TPP Program

#Question id: 4205

#Unit 3. Fundamental Processes

Puromycin is an antibiotic that inhibits protein synthesis because
TLS Online TPP Program

#Question id: 23983

#Unit 8. Inheritance Biology

A large chromosomal aberrations can be detected by staining in the chromosomal banding pattern that have been stained with banding agent such as quinacrine or Giemsa, which statement correct predict that the chromosome undergo for duplication?
TLS Online TPP Program

#Question id: 23695

#Unit 13. Methods in Biology

Yeast artificial chromosomes contain which of the following elements?