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NEET Exam  >  NEET Tests  >  Daily Test for NEET Preparation  >  Test: Biology Assertion and Reasoning Type Questions (March 31) - NEET MCQ

Test: Biology Assertion and Reasoning Type Questions (March 31) - NEET MCQ


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30 Questions MCQ Test Daily Test for NEET Preparation - Test: Biology Assertion and Reasoning Type Questions (March 31)

Test: Biology Assertion and Reasoning Type Questions (March 31) for NEET 2024 is part of Daily Test for NEET Preparation preparation. The Test: Biology Assertion and Reasoning Type Questions (March 31) questions and answers have been prepared according to the NEET exam syllabus.The Test: Biology Assertion and Reasoning Type Questions (March 31) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Biology Assertion and Reasoning Type Questions (March 31) below.
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Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 1
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Directions: In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:

Assertion: Besides curdling of milk, LAB also improve its nutritional quality by increasing vitamin-B12.
Reason: LAB, when present in human stomach, check disease causing microbes.

Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 1

Curd is more nutritious than milk as it contains a number of organic acids and vitamins including B12. LAB present in curd also checks growth of disease causing microbes in stomach and other parts of digestive tract.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 2
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A: Detritivores and decomposers hold up a part of nutrients contained in detritus.

R: Immobilised nutrients cannot be available for solubilisation after the death of saprotrophs.

Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 2
Immobilised nutrients are available after the death of microbes (detritivores or saprobes).

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Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 3
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A: Neither the community modifies environment, nor the environment forces the community to leave the place in the climax stage of succession.

R: Climax community is xerophytic in most of the types of succession.

Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 3
All successions lead to a mesic climax.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 4
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A: Ecological pyramids of biomass are generally inverted in the sea.

R: Biomass of fishes far exceeds that of phytoplanktons.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 4
Biomass µ life span of an organism.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 5
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A: Pyramid of biomass pyramid is always upright for the tree ecosystem.

R: Total biomass of a tree in a specific area is more than that of herbivores.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 5
Pyramid of biomass is upright for the terrestrial ecosystem.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 6
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A: Niche becomes general and broader during biotic succession.

R: Species diversity increases, but organic matter is decreased.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 6
Niche becomes narrow and specific during biotic succession.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 7
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A: Stratification helps in the accommodation of a large number and types of plants in the same area.

R: It is the occurrence of horizontal zonation in the ecosystem.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 7
Vertical zonation of an ecosystem is stratification.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 8
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A: During succession, nutrient availability decreases while biomass level increases.

R: NCP (Net community productivity) remains the same during succession.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 8
Nutrient availability increases during successions.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 9
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A: Decomposers are excluded from the food chains.

R: They act on all trophic levels of a food chain.

Decomposers act at each trophic level.
Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 10
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A: In hydrosere, reed swamp stage is followed by a floating plant stage.

R: Sedge meadow stage has amphibious herbaceous plants.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 10

The floating plant stage precedes reed swamp stage.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 11
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A: Agriculture and aquacultures are man maintained ecosystems.

R: All biotic and abiotic factors are managed by humans in these ecosystems.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 11

Anthropogenic ecosystem → Man-made ecosystem.

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A: Warm and moist environments can enhance the rate of decomposition.

R: Warm and moist climate leads to an anaerobic condition which promotes decomposition.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 12
Decomposition occurs in aerobic condition.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 13
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : Process of extinction is random and fast.

Reason (R) : Any species which can not adapt itself according to the environment, it cannot survive.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 13
If an organism fails to adapt itself according to the environment, it will not survive.
Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 14
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : Biologists are not sure about total number of prokaryotic species

Reason (R) : Nearly 45,000 species of plants and twice as many of animals have been recorded from India
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 14
Biologists are not sure about the total number of prokaryotic species because : (a) Conventional taxonomic methods are not suitable for identifying microbial species. (b) Many species are not culturable under laboratory conditions.
Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 15
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : Percentage of animals is more than the percentage of plants.

Reason (R) : 70% of all the species are animals, while plants contribute nearly 22% of the total.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 15
Animals have a nervous system to receive stimuli and respond against them, they are mobile and can move to avoid competition.
Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 16
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : Biodiversity means diversity at species level.

Reason (R) : Biodiversity is a diversity not only at species level but at all levels of biological organization.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 16
The term biodiversity is popularized by Edward Wilson, it is a diversity at all levels of biological organization from macromolecules within cells to the biomes.
Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 17
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : Western ghats of India are one of the hot-spots of biodiversity.

Reason (R) : Western ghats have greater amphibian diversity than eastern ghats.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 17
Western ghats is one of the eight hotspots of biological diversity in the world due to its high level of biological diversity and endemism.
Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 18
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : There is more species biodiversity in tropical latitudes than in temperate ones.

Reason (R) : Tropical environments, unlike temperate ones, are less seasonal, relatively more constant and predictable.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 18
Biodiversity (species richness) is highest in tropics because (i) Tropics had more evolutionary time. (ii) Relatively constant environment (less seasonal). (iii) They receive more solar energy which contributes to greater productivity.
Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 19
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : Loss of habitat is the main cause of loss of biodiversity.

Reason (R) : This causes the increase in edge area and reduction in core area.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 19
There are many reasons behind the loss of biodiversity among them habitat loss is one, others are over-exploitation, alien species invasions, co-extinctions.
Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 20
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : Sacred groves are highly protected.

Reason (R) : They are of religious importance to the communities.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 20
Sacred groves are highly protected by certain communities because they are of religious importance to the communities. They have a significant role in in-situ conservation.
Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 21
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : Many species like Steller's sea cow, passenger pigeon, etc., became extinct due to over exploitation.

Reason(R) : Over exploitation is a major cause of biodiversity loss.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 21

Many species like Steller's sea cow, passenger pigeon, etc., became extinct due to over exploitation. The dependence of humans on nature for food and shelter led to over exploitation of natural resources. It is one of the major causes of biodiversity loss.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 22
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Directions: In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:

Assertion: Lichen is important for chemical industries.
Reason: Litmus and Orcein are formed from lichens.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 22

Litmus is an important and widely used dye in chemical laboratories as an acid-base indicator. It is obtained from Roccella montaigne. Orcein, a biological stain, is obtained from Roccella tinctoria.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 23
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Directions: In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:

Assertion: Rennet and fruit extract of Withania somnifera have antagonistic functions.
Reason: Rennet is obtained from calf's liver and is used for curdling of milk.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 23

Rennet is obtained from calf 's stomach and is a commercially available form of enzyme rennin. Rennet is used from curdling of milk to initiate the process of cheese formation. The same function can be carried out with the help of fruit extract of Withania somnifera. Thus, rennet and fruit extract of Withania somnifera have similar functions and are not antagonistic.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 24
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Directions: In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:

Assertion: Beer and wine are called soft liquors while gin, rum, etc. are hard liquors.
Reason: Beer and wine are made without distillation.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 24

Beer, wine, gin, rum, vodka, etc. are fermentation products but beer and wine are formed without distillation. However, distillation of fermented broth is carried out in case rum, gin, etc. Distillation increases the alcohol concentration of the beverage. Thus, gin with 40% alcohol, rum with 40% alcohol and brandy with 60-70% alcohol are more alcoholic than beer (3-6% alcohol) and wine (9-12% alcohol).

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 25
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Directions: In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:

Assertion: Acetic acid production involves both aerobic and anaerobic processes.
Reason: Production of alcohol from glucose is an aerobic process and production of acetic acid from alcohol is an anaerobic process.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 25

Acetic acid is prepared from fermented alcohols with the help of acetic acid producing bacteria, Acetobacter aceti. Alcoholic fermentation of sugars is an anaerobic process but the conversion of alcohol to acetic acid is an aerobic process. This reactions occurring can be summarised as: Anaerobic formation of alcohol:

Acetic acid is either used as vinegar after ripening or in pharmaceutical, colouring agents, insecticides, plastics, etc.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 26
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Directions: In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:

Assertion: Secondary treatment of sewage is also called biological treatment while primary treatment is called physical treatment.
Reason: Primary Sewage treatment depends only upon sedimentation properties of materials present in sewage and filtration.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 26

Sewage treatment is divided into primary treatment and secondary treatment. Primary treatment involves filtration of the sewage and then sedimentation of the debris present on filtrate. No microbes are used. The sediment of primary treatment, called primary sludge, is treated by aerobic microbes and then by anaerobic microbes to reduce its organic components during secondary treatment. Secondary treatment involves microbes, thus it is also called biological treatment.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 27
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Directions: In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:

Assertion: Biogas is used as fuel for cooking and lighting.
Reason: It is considered as eco friendly and pollution free source of energy.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 27

Gases present in bio-gas produce energy by combustion or oxidation which can be used for heating purpose or for generation of power through gas engines. Biogas is used as fuel for heating and cooking, lighting, power for irrigation and other purposes as an alternative of firewood, kerosene, dung cakes or even electricity and pollution free source of energy.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 28
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Directions: In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:

Assertion: Restriction enzymes recognize palindromic sequence.
Reason: Palindromic sequences read same in both directions of the two strands.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 28

The palindrome in DNA is a sequence of base pairs that reads same on the two strands when orientation of reading strand is kept same. Restriction enzymes cut the strand of DNA a little away from the centre of the palindrome sites, but between the same two bases on opposite strands.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 29
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Directions: In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as: 

Assertion: Restriction enzymes of different organisms that recognize the identical sequences are called isoschizomers.
Reason: They are present only in eukaryotes.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 29

Isoschizomer are pairs of restriction enzymes specific to the same recognition sequence. e.g., SphI (CGTAC/G) and BbuI (CGTAC/G) are isoschizomers of each other. These are isolated from different strains of bacteria.

Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 30
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Directions: In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:

Assertion: Restriction endonucleases are also called 'molecular scissors'.
Reason: When fragments generated by restriction endonucleases are mixed, they join together due to their sticky ends.
Detailed Solution for Test: Biology Assertion and Reasoning Type Questions (March 31) - Question 30

Restriction endonuclease are molecular scissors, which cut a DNA molecule within certain specific site called restriction site. Common restriction endonucleases are Eco RI, Bam II, Hind III, etc.

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