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TLS Online TPP Program

#Question id: 40228

Consider the following statements regarding nitrogen-fixing bacteria:

  • Statement I: Rhizobium forms a symbiotic association with leguminous plants and fixes nitrogen only within the root nodules.

  • Statement II: Alcaligenes species are primarily known as anaerobic chemolithotrophs in the nitrogen cycle.

#Applied Microbiology

  2. Both Statement I and Statement II are correct.

  3. Both Statement I and Statement II are incorrect.
  4. Statement I is correct, but Statement II is incorrect.
  5. Statement I is incorrect, but Statement II is correct.
More Questions
TLS Online TPP Program

#Question id: 56

#Biochemistry

Trace elements are those required by an organism in only minute quantities. Which of the following is a trace element that is required by humans and other vertebrates, but not by other organisms such as bacteria or plants?
TLS Online TPP Program

#Question id: 57

#Biochemistry

A(n) ________ has charge but negligible mass, whereas a(n) ________ has mass but no charge.
TLS Online TPP Program

#Question id: 58

#Biochemistry

A covalent chemical bond is one in which ________.
TLS Online TPP Program

#Question id: 59

#Biochemistry

Nitrogen (N) normally forms three covalent bonds with a valence of five. However, ammonium has four covalent bonds, each to a different hydrogen (H) atom (H has a valence of one). What do you predict to be the charge on ammonium?
TLS Online TPP Program

#Question id: 60

#Biochemistry

Which of the following is true for the reaction?

3H2 + N2   2NH3
TLS Online TPP Program

#Question id: 61

#Biochemistry

Which of the following correctly describes chemical equilibrium?