Environment Quiz
Preview:
Phosphates enzyme play a major role in ______ of organic phosphates in soil:
A. Mineralization
B. Adsorption
C. Immobilization
D. None of these
In plants, respiration occurs
A. During the day only
B. During the night only
C. During day and night
D. Only when photosynthesis does not take place
The fungal mycelium in Mycorrhizae penetrates the root cells by means of projections called———
A. Hausteria
B. Arbuscules
C. Absorbing organ
D. None
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
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
Commonly used method for enumeration of soil microbial population is:A.B.C.D.
A. Contact slide technique
B. Dilution plate technique
C. Microscopic count
D. Microbial respiration
Rhizosphere refers to the small area:
A. Around the root
B. Near the primary root
C. On the root
D. All of the above
The green plants are called
A. Producers
B. Consumers
C. Decomposers
D. None of these
The two components of a ecosystem are
A. Plants and animals
B. Biotic and Abiotic
C. Plants and light
D. Weeds and micro-organisms
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
What are considered as bioindicators of air pollution
A. Mycorrhizae
B. Lichens
C. Rhizosphere
D. None of the above
Rhizohium culture is used to increase biological nitrogen fixation in….
A. Cereals crops
B. Pulse crops
C. Cotton
D. Oilseeds
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
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
The microbes, which can survive at the temperature 25 – 30 C is termed as:
A. Thermoduric
B. Mesophilic
C. Psychrotrophic
D. Psychrophilic
Bioindicators include
A. Soil animals
B. Soil plants
C. Soil enzymes
D. None of the above
E. All of the above
Match the following Picture (representation) to the Correct Symbiotic Relationship by drawing a line from the word to the picture that matches the relationship
A. A-A, B-A,C-B
B. A-B, B-C,C-C
C. A-C, B-B, C-A
D. A-C, B-B, C-C
Deforestation causes
A. More floods
B. Reduced rainfall
C. Soil erosion
D. All the above
The word Environment is derived from
A. Greek
B. French
C. Spanish
D. English
Taj Mahal is threatened due to
A. Sulphur dioxide
B. Carbon dioxide
C. Carbon monoxide
D. Water vapour
Within the rhizosphere, plant roots have no effect on composition and density of soil microbial community.
A. TRUE
B. FALSE
C. Can’t say
D. May be
Rhizobia infect the host legumes through:
A. Cortex cells
B. Epidermal cells
C. Root hairs
D. All of the above
In Lichen, the fungle partener is called as————- a) . b) . c) . c) .
A. Phacobiont
B. Mycobiont
C. Photobiont
D. All of above
Skin microflora is an example of which relationship
A. parasitism
B. commensalism
C. syntrophism
D. amensalism
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.