Medical Quiz

Environment Quiz


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———-is the obligatory interaction.

A. Mutualism

B. Commensalism

C. Ammensalism

D. Cooperation


What are considered as bioindicators of air pollution

A. Mycorrhizae

B. Lichens

C. Rhizosphere

D. None of the above


Neutralism occurs

A. When populations are in their favourable environment

B. In habitats with high population density

C. When organisms are in their growing stage.

D. Between microbial populations in a community with extremely different metabolic characteristics.


Skin microflora is an example of which relationship

A. parasitism

B. commensalism

C. syntrophism

D. amensalism


Phosphates enzyme play a major role in ______ of organic phosphates in soil:

A. Mineralization

B. Adsorption

C. Immobilization

D. None of these


Dehydrogenase is an endoenzyme

A. TRUE

B. FALSE

C. Don’t know


Which energy source pollutes the environment?

A. Solar

B. Wind

C. Hydroelectric

D. Coal


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


The presence of autotrophic mycorrhiza enhances the uptake of nutrients in general, but particularly of:

A. Iron

B. Molybdenum

C. Phosphorus

D. Nitrogen


Taj Mahal is threatened due to

A. Sulphur dioxide

B. Carbon dioxide

C. Carbon monoxide

D. Water vapour


The green plants are called

A. Producers

B. Consumers

C. Decomposers

D. None of these


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 two components of a ecosystem are

A. Plants and animals

B. Biotic and Abiotic

C. Plants and light

D. Weeds and micro-organisms


Deforestation causes

A. More floods

B. Reduced rainfall

C. Soil erosion

D. All the above


Lichen is the symbiotic association of—————-

A. Fungi & Bacteria.

B. Fungi & Algae

C. Algae & Bacteria

D. Protozoa & Virus


The fungal mycelium in Mycorrhizae penetrates the root cells by means of projections called———

A. Hausteria

B. Arbuscules

C. Absorbing organ

D. None


Bioindicators include

A. Soil animals

B. Soil plants

C. Soil enzymes

D. None of the above

E. All 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


The ultimate source of energy in an ecosystem is the

A. producers

B. Consumers

C. Sun

D. Decomposers


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


In Lichen, the fungle partener is called as————- a) . b) . c) . c) .

A. Phacobiont

B. Mycobiont

C. Photobiont

D. All of above


———is the type of endosymbiosis.

A. Cooperation

B. Commensalisms

C. Mutualism

D. Predation


Which of these play a very important role in causing rain fall

A. Vehicles

B. Animals

C. Factories

D. Plants


What is the theme of environment day 2020

A. Beat air pollution

B. Beat plastic pollution

C. Celebrate Biodiversity

D. Connecting people to nature


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




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