A simple technology has been developed in India for plant breeders and farmers to use two plants as biofertilizers for growing rice. These are
Azotobacter and Rhizobium
Chlorella and Spirulina
Azolla and nitrogen fixing blue-green algae
Riccia and Marchantia
Yeast is used in the production of :
acetic acid
citric acid
ethyl alcohol
curd
C.
ethyl alcohol
Yeast is used in the production of ethyl alcohol. Sugar is fermented by yeast into alcohol and CO2. Ethyl alcohol is the main product of beweries.
Citric acid is produced by Aspergillus niger (fungus) and acetic acid by Acetobacter aceti (bacterium) whereas curd is produced by Lactobacillus lactis (bacterium).
Which of the following micro-organism is used for conversion of milk into curd?
Xanthomonas citri
Bacillus megatherium
Acetobacter aceti
None of the above
Which of the following is the product of glucose fermentation by yeast?
C6H12O6
C2H5OH
(C6H10O5)n
CH2OH
Curdling of milk in small intestine occurs due to the action of
rennin
erypsine
trypsin
chymotrypsin
Which of the following pesticides is an acetylcholinesterase inhibitor?
Aldrin
BHC
Endosulfan
Malathion