Environment Quiz
Preview:
Antagonistic substances released by microorganisms in the rhizosphere may allow plants to enter ………………. relationship with other plants.
A. commensal
B. symbiotic
C. amensal
D. competition
Skin microflora is an example of which relationship
A. parasitism
B. commensalism
C. syntrophism
D. amensalism
Lichen is the symbiotic association of—————-
A. Fungi & Bacteria.
B. Fungi & Algae
C. Algae & Bacteria
D. Protozoa & Virus
Rhizobia infect the host legumes through:
A. Cortex cells
B. Epidermal cells
C. Root hairs
D. All of the above
The presence of autotrophic mycorrhiza enhances the uptake of nutrients in general, but particularly of:
A. Iron
B. Molybdenum
C. Phosphorus
D. Nitrogen
Which energy source pollutes the environment?
A. Solar
B. Wind
C. Hydroelectric
D. Coal
Deforestation causes
A. More floods
B. Reduced rainfall
C. Soil erosion
D. All the above
The ultimate source of energy in an ecosystem is the
A. producers
B. Consumers
C. Sun
D. Decomposers
———is the type of endosymbiosis.
A. Cooperation
B. Commensalisms
C. Mutualism
D. Predation
———-is the obligatory interaction.
A. Mutualism
B. Commensalism
C. Ammensalism
D. Cooperation
Dehydrogenase is an endoenzyme
A. TRUE
B. FALSE
C. Don’t know
Rhizospheres affect microbial population and nutrient availability by:
A. Exerting physical pressure
B. Increasing pore space
C. Secreting nutritive metabolites and organic solvents
D. Changing soil structure
The green plants are called
A. Producers
B. Consumers
C. Decomposers
D. None of these
Bioindicators include
A. Soil animals
B. Soil plants
C. Soil enzymes
D. None of the above
E. All of the above
Phosphates enzyme play a major role in ______ of organic phosphates in soil:
A. Mineralization
B. Adsorption
C. Immobilization
D. None of these
Rhizohium culture is used to increase biological nitrogen fixation in….
A. Cereals crops
B. Pulse crops
C. Cotton
D. Oilseeds
Taj Mahal is threatened due to
A. Sulphur dioxide
B. Carbon dioxide
C. Carbon monoxide
D. Water vapour
Which of these activities is eco-friendly?
A. Cars for transportation
B. Polybags for shopping
C. Windmills for generating power
D. Dyes for colouring clothes
The fungal mycelium in Mycorrhizae penetrates the root cells by means of projections called———
A. Hausteria
B. Arbuscules
C. Absorbing organ
D. None
How many tiger reserves are present in Karnataka
A. 50
B. 27
C. 8
D. 6
What is the full form of BOD?
A. Bactorial oxygen demand
B. Biological oxygen demand
C. Biological oxide demand
D. None of these
Oxidation of sulfure to sulphate is carried out by:A.B.C.D.
A. Aspergillus spp
B. Azotobacter spp
C. Bacillus spp
D. Thiobacillus spp
Biofertilizer is a:
A. Mixture of organic matter and microorganism
B. Culture having the desired strain of microorganisms
C. Mixture of inorganic fertilizer and microorganism
D. Decomposed compost enriched with mineral solubilising bacteria
What are considered as bioindicators of air pollution
A. Mycorrhizae
B. Lichens
C. Rhizosphere
D. None of the above
Which of the following relationships identifies a situation in which two species share a requirement for a limited resource thus reducing the fitness of one or both species? A
A. Parasitism
B. Competition
C. Decomposition
D. Mutualism
Disclaimer:
Medical Quiz should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational and educational purposes only.