TLS Online TPP Program

#Question id: 378


Which of the following statements about buffers is true?

#XL - S Microbiology
  1. A buffer composed of a weak acid of pKa = 5 is stronger at pH 4 than at pH 6.

  2. At pH values higher than the pKa, the salt concentration is higher than that of the acid.

  3. The strongest buffers are those composed of strong acids and strong bases.

  4. When pH = pKa, the weak acid and salt concentrations in a buffer are equal.

More Questions
TLS Online TPP Program

#Question id: 11661

#XL - T Zoology

Autogenic factors results from the community and its organism for example filling in the pond by the dead organism from the pond itself. It included several other factors except____

TLS Online TPP Program

#Question id: 11662

#XL - T Zoology

During the successional process generation of community through the short time period successional process as well as long time successional process;

a) During short time period evolve pioneer community from the climax community

b) During short time period generation of the microbial community 

c) During long time period generation of end community (forest) from the pioneer community

d) During long time period generation of the microbial community 

TLS Online TPP Program

#Question id: 11663

#XL - T Zoology

Successional community changes in every steps,  process of lithosere is involved in a particular order manner such as,

TLS Online TPP Program

#Question id: 11681

#XL - T Zoology

A baby is born with a penis, a scrotum with no testes, no vagina, and XX chromosomes. This condition is referred to as hermaphroditism. Which of the following could cause this abnormality?

TLS Online TPP Program

#Question id: 11682

#XL - T Zoology

A young woman is given daily injections of a substance beginning on the 16th day of her normal menstrual cycle and continuing for 3 weeks. As long as the injections continue, she does not menstruate. The injected substance could be which of the following?

TLS Online TPP Program

#Question id: 11683

#XL - T Zoology

Which of the following could inhibit the initiating labor?