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TLS Online TPP Program

#Question id: 34818

Which of the following are true regarding dicot roots?

#XL - R Botany

  1. Xylem is exarch in arrangement

  2. Presence of well-developed pith
  3. Vascular bundles are radial
  4. Casparian strips are present in the pericycle
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TLS Online TPP Program

#Question id: 34351

#XL - S Microbiology

A microbial population is reduced from 1 × 106 CFU/mL to 1 × 103 CFU/mL after 9 minutes at 121°C. Assume first-order kinetics. What is the D-value (in minutes) at 121°C?
TLS Online TPP Program

#Question id: 34352

#XL - S Microbiology

The D-value for a microorganism is 4 minutes at 120°C and 0.4 minutes at 130°C.
What is the Z-value (in °C)?
TLS Online TPP Program

#Question id: 34353

#XL - S Microbiology

The D-value at 121°C for a bacterial spore is 2 minutes.
How long (in minutes) will it take to reduce the population from 1 × 106 to 1 cell?
TLS Online TPP Program

#Question id: 34354

#XL - S Microbiology

If a heat treatment at 70°C with a D-value of 5 minutes is applied for 20 minutes, how many log reductions of the microorganism population will occur?
TLS Online TPP Program

#Question id: 34355

#XL - S Microbiology

The D-value of an organism is 5 minutes at 115°C, and the Z-value is 10°C.
What is the D-value at 125°C (in minutes)?
TLS Online TPP Program

#Question id: 34459

#XL - Q Biochemistry

Which of following Co-factors are used by phenylalanine hydroxylase ?