At 25°C values of [θ]222, the mean residue ellipticity at 222 nm, are - 33,000 and -3,000 deg cm2 dmol-1 for a polypeptide existing in α- helical (α) and β-structure (β), respectively. If this polypeptide undergoes a two-state heat-induced α-β transition, and a value of [θ]222 =  -15,000 deg cm2 dmol-1 is observed at 60°C, then this observation leads to the conclusion that the α helix conversion to β- structure is:

TLS Online TPP Program

#Question id: 20993

#Unit 12. Applied Biology

Toluene decay by the denitrifying pseudomonas sp. Strain k172 is done. The enzymes involved in degradation pathway are   

1.  Benzyl alcohol dehydrogenase

2.  Benzaldehyde dehydrogenase

3.  Benzoyl-coa synthetase 

Which of the below combinations are correct?

TLS Online TPP Program

#Question id: 20987

#Unit 12. Applied Biology

Toluene degradation could be optimized and linked to the reduction of 

1. Nitrate 

2. Nitrous oxide

3. Nitrite

Which of the below combinations are correct?

TLS Online TPP Program

#Question id: 20983

#Unit 12. Applied Biology

Which is considered as less recalcitrant out of the BTEX compounds, and of lesser regulatory concern?

1. Xylene

2. Ethylbenzene

3. Toluene

4. Benzene

Which of the below combinations are correct?

TLS Online TPP Program

#Question id: 20711

#Unit 12. Applied Biology

During the electron transfer process, usable energy is recovered via a series of redox reactions through the formation of 

1. Energy storage compounds 

2. Electrochemical gradients

3. Vacoules

Which of the below combinations are correct?

TLS Online TPP Program

#Question id: 20539

#Unit 12. Applied Biology

Aromatic hydrocarbons including benzene, toluene, ethylbenzene and xylene collectively referred as BTEX compounds. Which of them are not considered as carcinogenic?

1. Benzene

2. Toluene

3. Ethylbenzene

4. Xylene

Which of them is a correct option?

TLS Online TPP Program

#Question id: 18389

#Unit 12. Applied Biology

How the degradation of alkanes and aromatic hydrocarbons generally occurs.

1. Oxygenase enzyme

2. β-oxidation to yield acetyl CoA

3. Hydrogenation reaction

4. Carboxylation

Which of the following are correct?