141. Which of the following is part of cytochrome

A Mg
B Zn
C Fe
D Ca
Answer :   Fe
Discuss Question

142. In which one of the following is nitrogen not a constituent

A Idioblast
B Bacteriochlorophyll
C Invertase
D Pepsin
Answer :   Idioblast
Discuss Question

143. Which one of the following is wrong statement?

A Anabaena and Nostoc are capable of fixing nitrogen in free living state also
B Root nodule forming nitrogen fixers live as aerobes under free-living conditions
C Phosphorus is a constituent of cell membranes, certain nucleic acids and cell proteins
D Nitrosomonas and Nitrobacter are chemoautotrophs
Answer :   Phosphorus is a constituent of cell membranes, certain nucleic acids and cell proteins
Discuss Question

144. Ferula asafoetida is the source of

A Haldi
B Heena
C Heroin
D Opium
Answer :   Heena
Discuss Question

145. Which of the following is symbiotic bacteria

A Rhizobium
B Azotobactor
C Clotrisdium
D Streptomyces
Answer :   Rhizobium
Discuss Question

146. Essential macroelements are

A Absorbed from soil
B Manufactured during photosynthesis
C Produced by enzymes
D Produced by growth hormones
Answer :   Absorbed from soil
Discuss Question

147. Which of the following is not macro-nutrient

A C
B P
C S
D Zn
Answer :   Zn
Discuss Question

148. The plants that grow on saline soils with high concentration of NaCl, MgSO4 and MgCl2 are called

A Succulents
B Mesophytes
C Xerophytes
D Halophytes
Answer :   Halophytes
Discuss Question

149. Which of the following drug affects mind

A Atropine
B Qunidine
C Serpentine
D Di-hyoscymine
Answer :   Serpentine
Discuss Question

150. Morphine is obtained from the fruit of

A Datura stramonium
B Papaver somniferum
C Rauwolfia serpentine
D Lungs
Answer :   Papaver somniferum
Discuss Question


Practice More MCQ Question on Biology Section