Questions on Biofertilizers | Medicinal Plants, Paper - 01

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Questions on Biofertilizers | Medicinal Plants, Paper - 01

 

Sr. No.

Questions

Answers

1.

A biofertilizer which involves a pteridophyte host is
(a) Rhizobium
(b) Anabaena
(c) Clostridium
(d) Azotobacter

Answer: (b)

2.

A fern commonly inoculated to paddy fields is
(a) Azolla
(b) Marsilea
(c) Salvinia
(d) Anabaena

Answer: (a)

3.

A free living nitrogen fixing bacterium is
(a) Clostridium
(b) Azotobacter
(c) Rhizobium
(d) Both A and B

Answer: (d)

4.

A free living nitrogen fixing cyanobacterium which can also form symbiotic association with Azolla is
(a) Nostoc
(b) Anabaena
(c) Tolypothrix
(d) Gleocapsa

Answer: (b)

5.

A medicine for bronchitis is got from
(a) Rauwolfia serperntina
(b) Curcuma longa
(c) Adhatoda vasica
(d) Hemidesmus indicus

Answer: (c)

6.

A neem product used as insect repellent is
(a) Azardirachtin
(b) Rotenone
(c) Endrin
(d) Parathion

Answer: (a)

7.

A nitrogen fixing blue green alga is
(a) Ulothrix
(b) Spirogyra
(c) Anabaena
(d) Rhizobium

Answer: (c)

8.

A piosnous mushroom among the following is
(a) Agaricus bisporus
(b) Morchella esculenta
(c) Hydnum sp.
(d) Amanita sp.

Answer: (d)

9.

A plant effective in ensuring safe delivery ans prevent abortions is
(a) Azadirachta
(b) Ocimum
(c) Adhatoda
(d) Asparagus

Answer: (d)

10.

A quatic fern which is an excellent biofertilizer
(a) Salvinia
(b) Azolla
(c) Marsilea
(d) Pteridium

Answer: (b)