The cytochrome P450 constitute a superfamily of heme-containing enzymes that occur in nearly all living organisms, from bacteria to mammals, These monooxygenases, which in animals are embedded in the endoplasmic reticulum membrane, catalyze reactions of the sort

                  RH + O₂ + 2 H⁺ + 2e⁻ → ROH + H₂O 

The electrons (e−) are supplied by NADPH, which passes them to cytochrome P450’s heme prosthetic group via the intermediacy of the enzyme NADPH P450 reductase. Here RH represents a wide variety of usually lipophilic compounds for which the different cytochromes P450 are specific. They include

a. polycyclic aromatic hydrocarbons 

b. polycyclic biphenyls

c. frequently carcinogenic compounds that are present in tobacco smoke, broiled meats, and other pyrolysis products

d. which were widely used in electrical insulators and as plasticizers and are also carcinogenic.

TLS Online TPP Program

#Question id: 22086

#Unit 12. Biochemical Engineering

Read the following passage and answer questions given at the end of the passage:

Although the schooling of fish is a familiar form of animal social behavior, how the school is formed and maintained is only beginning to be understood in detail. It had been thought that each fish maintains its position chiefly by means of vision. Our work has shown that, as each fish maintains its position, the lateral line, an organ sensitive to transitory changes in water displacement, is as important as vision. In each species a fish has a "preferred" distance and angle from its nearest neighbor. The ideal separation and bearing, however, are not maintained rigidly. The result is a probabilistic arrangement that appears like a random aggregation. The tendency of the fish to remain at the preferred distance and angle, however, serves to maintain the structure. Each fish having established its position uses its eyes and its lateral lines simultaneously to measure the speed of all the other fish in the school. It then adjusts its own speed to match a weighted average that emphasizes the contribution of nearby fish. The passage suggests that, after establishing its position in the school formation, an individual fish will subsequently

TLS Online TPP Program

#Question id: 22087

#Unit 12. Biochemical Engineering

The Budh International circuit length is 5.1 km. One Formula 1 driver made 61.5 rounds and stopped the race. What is the net displacement from start light?

TLS Online TPP Program

#Question id: 22088

#Unit 12. Biochemical Engineering

On a bright sunny day, a healthy person (with perfect eyesight) walking on a tar road saw the legs of a deer were "blurred or wavy" on the surface, far ahead of him. This unusual image formation is because of:

TLS Online TPP Program

#Question id: 22089

#Unit 12. Biochemical Engineering

In which one of the following situations, the entropy may be maximum?

TLS Online TPP Program

#Question id: 33608

#Unit 12. Biochemical Engineering

Which of the following parameters is NOT used for scale-up of a bioreactor?

TLS Online TPP Program

#Question id: 26719

#Unit 12. Biochemical Engineering

At a constant power number, doubling the impelling diameter, while halving the stirring  speed (RPM) will