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BOD is………..in polluted water and in potable water.
General Science Biology Zoology Class 12th NEET UG NEET UG Preparation
Q. 17 of Quiz-1459 (Que-ID : 3385)
BOD is………..in polluted water and in potable water.
- more, less
- less, more
- less in both
- medium in both
Ans → (a)more, less
Explanation → more, less
This question is taken from this post → Microbes in Human Welfare : Class - 12th (Biology) Practice Test | MCQs for NEET - attemp/practice
More MCQs in - Microbes in Human Welfare : Class - 12th (Biology) Practice Test | MCQs for NEET
Q. 1 of Quiz-1459 (Que-ID : 3369)
Integrated Pest Management (IPM) discourages the excessive used of
- biological methods
- chemical pesticides
- mechanical methods
- all of these
Q. 2 of Quiz-1459 (Que-ID : 3370)
Which of the following is not used as a biopesticide ?
- Trichoderma harzianum
- Nucleopolyhedrovirus
- Xanthomonas campestris
- Bacillus thuringiensis
Q. 3 of Quiz-1459 (Que-ID : 3371)
Organic farming does not include
- green manures
- chemical fertilisers
- farmyard manures
- compost
Q. 4 of Quiz-1459 (Que-ID : 3372)
Organic farming includes
- use of fertilisers and pesticides of biological origin
- IPM (Integrated Pest Management)
- locally developed pest resistant varieties
- all of these
Q. 5 of Quiz-1459 (Que-ID : 3373)
Living organisms used to enrich the nutrient quality of the soil are called as
- biocontrol agents
- biofertilisers
- synthetic fertilisers
- natural fertilisers
Q. 6 of Quiz-1459 (Que-ID : 3374)
Biofertilisers are
- some bacteria and cyanobacteria
- fertilisers formed by ploughing in barseem
- fertilisers obtained by decay of dead organisms
- fertilisers prepared by mixing cattle dung with crop residues
Q. 7 of Quiz-1459 (Que-ID : 3375)
Biofertilisers are the living organisms which
- bring about soil nutrient enrichment
- maximise the ecological benefits
- minimise the environmental hazards
- all of these
Q. 8 of Quiz-1459 (Que-ID : 3376)
Which one of the following can be used as biofertiliser in cotton field ?
- Azolla-Anabaena
- Streptococcus
- Azospirillum
- Azotobacter chroococcum
Q. 9 of Quiz-1459 (Que-ID : 3377)
The symbiotic association between fungi and roots of higher plants is referred to as
- lichen
- mycorrhiza
- biofertiliser
- biocontrol agent
Q. 10 of Quiz-1459 (Que-ID : 3378)
Cyanobacteria are
- heterotrophs
- chemotrophs
- autotrophs
- organotrophs
Q. 11 of Quiz-1459 (Que-ID : 3379)
Enzyme which has the fibrinolytic effect is
- protease
- amylase
- lipase
- streptokinase
Q. 12 of Quiz-1459 (Que-ID : 3380)
Statins used for lowering blood cholesterol level are extracted from
- algae
- bacteria
- viruses
- yeast
Q. 13 of Quiz-1459 (Que-ID : 3381)
Monascus purpureus is a yeast commercially used in the production of
- citric acid
- ethanol
- blood cholesterol lowering statins
- streptokinase for removing clots from blood vessels
Q. 14 of Quiz-1459 (Que-ID : 3382)
During the primary treatment of sewage, solid particles that settle down are called
- floes
- primary sludge
- activated sludge
- anaerobic sludge
Q. 15 of Quiz-1459 (Que-ID : 3383)
The purpose of biological treatment of waste water is to
- reduce BOD
- increase BOD
- reduce sedimentation
- increase sedimentation
Q. 16 of Quiz-1459 (Que-ID : 3384)
The masses of bacteria held together by slime and fungal filaments to form mesh-like structures are called as
- primary sludge
- floes
- activated sludge
- anaerobic sludge
Q. 17 of Quiz-1459 (Que-ID : 3385)
BOD is………..in polluted water and in potable water.
- more, less
- less, more
- less in both
- medium in both
Q. 18 of Quiz-1459 (Que-ID : 3386)
n the sewage treatment, bacterial floes are allowed to sediment in a settling tank. This sediment is called as
- inactivated sludge
- activated sludge
- primary sludge
- secondary sluge
Q. 19 of Quiz-1459 (Que-ID : 3387)
Which of the following steps is taken by the Ministry of Environment and Forests to protect rivers from water pollition ?
- Ganga Action Plan
- Narmada Action Plan
- Yamuna Action Plan
- Both (a) and (c)
Q. 20 of Quiz-1459 (Que-ID : 3388)
Methanogens, growing anaerobically on cellulosic material produce
- methane
- methane and carbon dioxide
- methane and hydrogen
- methane, carbon dioxide and hydrogen
Q. 21 of Quiz-1459 (Que-ID : 3389)
Which of the following bacteria is present in the rumen of cattle ?
- Azotobacter
- Rhizobium
- Methanobacterium
- Azospirillum
Q. 22 of Quiz-1459 (Que-ID : 3390)
Process of biogas production is
- aerobic process
- anaerobic process
- active process
- passive process
Q. 23 of Quiz-1459 (Que-ID : 3391)
Biogas is produced by
- aerobic breakdown of biomass
- anaerobic breakdown of biomass
- with the help of methanogenic bacteria
- both (b) and (c)
Q. 24 of Quiz-1459 (Que-ID : 3392)
Dragonflies are used to get rid of
- mosquitoes
- aphids
- butterfly caterpillars
- both (a) and (b)
Q. 25 of Quiz-1459 (Que-ID : 3393)
A microbial biocontrol agent that can be used to control butterfly caterpillars is
- Trichoderma polysporum
- Bacillus thuringiensis
- Streptococcus
- mycorrhiza
More MCQs In - General Science Biology Zoology Class 12th NEET UG NEET UG Preparation
Q. 2 of Quiz- (Que-ID : 2970)
Which among the following is not ureotelic
- Mammal
- Aquatic insect
- Terrestrial amphibian
- Marine fishes
Q. 15 of Quiz- (Que-ID : 3433)
The sheep ‘Dolly’ was cloned by using somatic cells from donor’s:
- Udder
- Skin
- Tongue
- Earlobe
Q. 3 of Quiz- (Que-ID : 3096)
Which of the following is a group of micronutrients?
- Ca, Zn, B
- Fe, Mn, Cu
- Cl, C, Ca
- Ni, Mo, H
Q. 7 of Quiz- (Que-ID : 3325)
Which one of the following sets includes bacterial diseases ?
- Tetanus, tuberculosis, measles
- Diptheria, leprosy, plague
- Cholera, typhoid, mumps
- Malaria, mumps, poliomyelits
Q. 7 of Quiz- (Que-ID : 1584)
Energy yielding anaerobic breakdown of glucose yielding lactate, ethanol with some other products is… . ..
- Protein fermentation
- Fat metabolism
- Glucose fermentation
- Nucleic acid fermentation
Q. 6 of Quiz- (Que-ID : 2949)
Control of gene expression takes place at the level of
- DNA-replication
- transcription
- translation
- none of the above
Q. 10 of Quiz- (Que-ID : 2653)
What is the inspiratory reserve volume
- 2500-3000 ml
- 500 ml
- 1000-1100 ml
- None of the above
Q. 22 of Quiz- (Que-ID : 2915)
Which of the following groups of cells in the male gonad, represent haploid cells ?
- Spermatogonial cells
- Germinal epithelial cells
- Secondary spermatocytes
- Primary spermatocytes
Q. 2 of Quiz- (Que-ID : 3345)
Which of the following is correctly matched ?
- Sericulture – Fish
- Aquaculture – Mosquito
- Apiculture – Honeybee
- Pisciculture – Silkmoth
Q. 23 of Quiz- (Que-ID : 3016)
A cell plate is laid down during
- Cytokinesis
- Interphase
- Karyokinesis
- None of these
Q. 10 of Quiz- (Que-ID : 3428)
Somatic hybridization can be done by:
- By Protoplast fusion
- By Haploid anther
- By cell culture
- By Pollen culture
Q. 25 of Quiz- (Que-ID : 3293)
Yeast is different from penicillium and Rhizopus in being
- Acellular
- Unicellular
- Having unseptate hyphae
- multicellular
Q. 17 of Quiz- (Que-ID : 2885)
Which of the following is correct regarding the consequences of lower population ?
- It increases the poverty of a country
- It leads to shortage of food supply
- It results in unemployment
- All of these
Q. 4 of Quiz- (Que-ID : 3297)
Which is not a vestigial organ in man ?
- Nictitating membrane
- Tail vertebrae
- Vermiform appendix
- Nails
Q. 6 of Quiz- (Que-ID : 2974)
Flame cells or protonephridia are NOT excretory structure of
- Planaria
- Annelids
- Cockroach
- Rotifers
Q. 5 of Quiz- (Que-ID : 3323)
Which of the following is the bacterial disease in humans ?
- Dysentery
- Malaria
- Plague
- Both (a) & (c)
Q. 4 of Quiz- (Que-ID : 3522)
Acid Rain comes under which type of pollution?
- Water pollution
- Air pollution
- Soil pollution
- Sound Pollution
Q. 8 of Quiz- (Que-ID : 3934)
Assertion: Arachidic acid is an unsaturated fatty acid Reason: There are one or more double bonds between carbon atoms in unsaturated fatty acids
- Both Assertion and Reason are true and Reason is the correct explanation of the Assertion
- Both Assertion and Reason are true but the Reason is not the correct explanations of Assertion
- Assertion is true, but Reason is false.
- Both Assertion and Reason are false
Q. 23 of Quiz- (Que-ID : 3341)
Elephantiasis, a chronic inflammation that results in gross deformities is caused by
- Ascaris
- E.coli
- Wuchereria
- Trichophyton
Q. 12 of Quiz- (Que-ID : 2680)
Which enzyme converts prothrombin into thrombin
- Thrombin
- Thrombokinase
- Pepcase
- Ligase
Q. 13 of Quiz- (Que-ID : 3381)
Monascus purpureus is a yeast commercially used in the production of
- citric acid
- ethanol
- blood cholesterol lowering statins
- streptokinase for removing clots from blood vessels
Q. 8 of Quiz- (Que-ID : 3326)
The common cold is caused by
- Rhino viruses
- Streptococcus pnemoniae
- Salmonella typhimurium
- Plasmodium vivax.
Q. 10 of Quiz- (Que-ID : 2953)
The RNA polymerase holocnzyme transcribes
- the promoter, structural gene and the terminator region
- the promoter and the terminator region
- the structural gene and the terminator region
- the structural gene only.
Q. 14 of Quiz- (Que-ID : 3557)
Which of the following is not a compound of carbon?
- Cinnabar
- Acetic acid
- Chloroform
- Methane
Q. 4 of Quiz- (Que-ID : 3472)
Exchange of water in submerged plant
- Stomata
- Normal surface
- Hydathode
- Lenticel
Q. 10 of Quiz- (Que-ID : 2953)
The RNA polymerase holocnzyme transcribes
- the promoter, structural gene and the terminator region
- the promoter and the terminator region
- the structural gene and the terminator region
- the structural gene only.
Q. 25 of Quiz- (Que-ID : 2918)
At what stage of life is oogenesis initiated in a human female ?
- At puberty
- During menarch
- During menopause
- During embryonic development
Q. 20 of Quiz- (Que-ID : 2838)
Select the monocarpic plant out of the following.
- Bamboo
- Litchi
- Mango
- all of these.
Q. 2 of Quiz- (Que-ID : 3470)
Soil particle determine the character of
- Organisation
- Biomass
- Area capacity
- Soil plants
Q. 5 of Quiz- (Que-ID : 2973)
Which requires min water for removal from body
- Ammonia
- Urea
- Uric acid
- None of the above
Q. 14 of Quiz- (Que-ID : 566)
Conversion of heat into electrical energy can be achieved by using a -
Conversion of heat into electrical energy can be achieved by using a -
- ammeter
- Hydrometer
- Voltmeter
- Thermocouple
Q. 14 of Quiz- (Que-ID : 2932)
To determine the genotype of a tall plant of F2 generation, Mendel crossed this plant with a dwarf plant. This cross represents a
- test cross
- back cross
- reciprocal cross
- dihybrid cross
Q. 7 of Quiz- (Que-ID : 2900)
A reaction of granules content which harden the zona pellucida and ensures sure block to polyspermy is
- acrosomal reaction
- cortical reaction
- acrosin reaction
- bindin reaction
Q. 6 of Quiz- (Que-ID : 3224)
The largest petal overlaps the lateral ones in _________ aestivation.
- Papilionaceous
- Valvate
- Twisted
- Imbricate
Q. 10 of Quiz- (Que-ID : 3503)
Lions m India are now found in
- Jim Corbett National Park
- Forests of Madhya Pradesh
- Forests of Western Ghats
- Fir Forests
Q. 13 of Quiz- (Que-ID : 2956)
To initiate translation, the wiRNA first bind to
- the smaller ribosomal sub-unit
- the larger ribosomal sub-unit
- the whole ribosome
- no such specificity exists
Q. 2 of Quiz- (Que-ID : 73)
The Heater Element in an electric iron is made of__
- Copper
- Tungesten
- Nichrome
- Iron
Q. 22 of Quiz- (Que-ID : 3290)
An evolutionary characteristic is found in selaginella:
- Presence of ligule
- Heterophilly habits
- Sporangia present in cone
- Heterospory
Q. 7 of Quiz- (Que-ID : 2950)
Which was the last human chromosome to be completely sequenced ?
- Chromosome 1
- Chromosome 11
- Chromosome 21
- Chromosome X
Q. 12 of Quiz- (Que-ID : 2880)
Amminocentesis is a technique used to
- determine errors in amino acid metabolism in embryo
- pin point specific cardiac ailments in embryo
- determine any hereditary genetic abnormality in embryo
- all of these
Q. 20 of Quiz- (Que-ID : 2863)
Male and female flowers are present on different plants (dioecious) to ensure xenogamy, in
- papaya
- bottle gourd
- maize
- all of these.
Q. 15 of Quiz- (Que-ID : 3033)
Which growth hormone accerlates the malting process in brewing industry?
- Auxins
- Gibberellins
- Ethylene
- Cytokinins
Q. 6 of Quiz- (Que-ID : 3424)
Transgenic Golden Rice has Highly Nutrient value for:
- Lysine
- Methionine
- Glutanin
- Vitamin-A
Q. 6 of Quiz- (Que-ID : 2949)
Control of gene expression takes place at the level of
- DNA-replication
- transcription
- translation
- none of the above
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