TLS Online TPP Program

#Question id: 10563


The rate of diffusion depend upon

#I Life Science/ Life Sciences Group – I-V
  1. Size of molecules directly propotional to diffusion
  2. Concentration differences directly propotional to diffusion
  3. temperature inversely propotional to diffusion
  4. greater the distance travel higher the rate of diffusion
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TLS Online TPP Program

#Question id: 3044

#SCPH28 | Zoology

If the pH indicator were left out of MacConkey agar, the medium would be

TLS Online TPP Program

#Question id: 3045

#I Life Science/ Life Sciences Group – I-V

Which one of the following combinations Mac-Conkey Agar allows to growth of gram negative bacteria?

(P) Bile salts                          (Q) Sodium chloride

(R) Methylene blue                  (S) Crystal violet

TLS Online TPP Program

#Question id: 3045

#SCPH28 | Zoology

Which one of the following combinations Mac-Conkey Agar allows to growth of gram negative bacteria?

(P) Bile salts                          (Q) Sodium chloride

(R) Methylene blue                  (S) Crystal violet

TLS Online TPP Program

#Question id: 3046

#SCPH06 I Botany

Which one of the following reagent used in differentiation of gram positive and Gram negative bacteria?

(P) Congo red                        (Q) Safranine

(R) Methylene blue                  (S) Iodine

TLS Online TPP Program

#Question id: 3047

#SCPH06 I Botany

A rapidly growing bacterial species such as E. coli exhibits a typical phase of growth cycle in liquid nutrient broth. If a bacterial culture has starting density 1000 cells/ml in log phase and after four hours cell density is 4000 cells/ml.  What is specific growth rate per hour? 

TLS Online TPP Program

#Question id: 3048

#SCPH06 I Botany

 If a bacterium regenerates from an endospore that did not possess any of the plasmids that were contained in its original parent cell, the regenerated bacterium will probably