TLS Online TPP Program

#Question id: 14943


If z = x4 + 3xy - y2 and y = sin x then dz/dx is

#Bio-Informatics
  1. (4x3 + 3 sin x) + (3x - 2 sin x) cos x
  2. (2x2- 3 sin x) + (3x -2 cos x)sin x
  3. (4x3 - 3 sin x) - (3x + 2 sin x) cos x
  4. none of these
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TLS Online TPP Program

#Question id: 40192

#Applied Microbiology

Match the organism type in Column A with its specific environmental requirement in Column B.

Column A (Organism)Column B (Environment)
1. PsychrophilesA. High salt concentration
2. HalophilesB. Temperatures below 15°C
3. AlkaliphilesC. High CO2 concentration
4. CapnophilesD. pH above 9.0

TLS Online TPP Program

#Question id: 40193

#Applied Microbiology

Read the following statements:

Statement I: Obligate anaerobes cannot survive in the presence of oxygen because they lack the enzymes catalase and superoxide dismutase.

Statement II: Facultative anaerobes require oxygen for growth and cannot grow in its absence

TLS Online TPP Program

#Question id: 40194

#Applied Microbiology

Assertion (A): Thermophiles can survive and reproduce at temperatures above 45°C.

Reason (R): Their enzymes and proteins contain more hydrogen bonds and salt bridges, making them heat stable.

TLS Online TPP Program

#Question id: 40195

#Environmental Science

Match List I (Environmental Conventions) with List II (Primary Focus):

List I (Convention)List II (Focus)
A. Minamata ConventionI. Control of Transboundary Movements of Hazardous Wastes
B. Basel ConventionII. Protection of Ozone Layer
C. Vienna ConventionIII. Mercury Pollution
D. Nagoya ProtocolIV. Access and Benefit Sharing (Genetic Resources)

TLS Online TPP Program

#Question id: 40196

#Applied Microbiology

In a continuous culture system (Chemostat), what happens if the dilution rate (D) exceeds the maximum specific growth rate (mumax) of the organism?

TLS Online TPP Program

#Question id: 40197

#Applied Microbiology

Assertion (A): A turbidostat is most effective when operating at high dilution rates near the maximum specific growth rate (mumax}).

Reason (R): At low dilution rates, the chemostat is more stable because the concentration of the limiting nutrient is easier to control than turbidity