91. The components of sucrose is
a. Glucose + Glucose
b. Glucose + Galactose
c. Glucose + Fructose
d. Fructose + fructose
92. Which of the following produces citric acid?
a Aspergillus
b Pseudomonas
d Clostridium
c Saccharomyces
93. Rhizobium is used as a biofertilizer for —-?
a. Soybean Crop
b. Wheat Crop
c. Corn (sweet)
d. Buckwheat
94. Which of the following organism is nitrogen-fixing and found in rice fields in symbiotic association with Azolla?
a Anabaena
b. Frankia
c. Spirulina
d. Tolypothrix
95. A common biopesticide for preventing plants from butterfly caterpillars is
a Glomus
b. Baculovirus
c. Trichoderma
d. Bacillus thuringiensis
96. Which alga can be used as food for the human being?
a. Polysiphonia
b. Chlorella
c. Ulothrix
d. Spirogyra
97. Yeast is used for the production of
a Tetracycline
b. Ethanol
c. Butanol
d. Citric Acid
98. Trichoderma harzianum is useful for
a. Bioremediation of contaminated soils
b. Gene transfer in higher plants
c. Biological control of soilborne plant pathogens
d. Reclamation of wastelands
99. Which of the following organisms is used in alcoholic fermentation?
a. Pseudomonas
b. Saccharomyces
c. Aspergillus
d. Penicillium
100. Which of the following microorganisms is not used as a biofertilizer?
a Rhizobium
b. Agrobacterium
c. Nostoc
d. Mycorrhiza