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Which one of the following can be used as biofertiliser in cotton field ?
General Science Biology Zoology Class 12th NEET UG NEET UG Preparation
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
Ans → (d)Azotobacter chroococcum
Explanation → Azotobacter chroococcum used as biofertiliser in cotton field
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. 1 of Quiz- (Que-ID : 3219)
In tamarind, the pinnate leaf is
- bipinnate
- tripinnate
- paripinnate
- imparipinnate
Q. 25 of Quiz- (Que-ID : 2943)
Genes located very close to one another on same chromosome tend to be transmitted together and are called as
- allelomorphs
- identical genes
- linked genes
- recessive genes
Q. 25 of Quiz- (Que-ID : 2793)
The taxonomic unit ?Phylum? in the classification of animals is equivalent to which hierarchical level in classification of plants?
- Class
- Order
- Family
- Division
Q. 16 of Quiz- (Que-ID : 1865)
The call "Dilli Chalo" was given by-
- Lala Lajpat Rai
- Dr. Rajendra Prasad
- Subhash Chandra Bose
- Mahatma Gandhi
Q. 19 of Quiz- (Que-ID : 2988)
Angiotensinogen 2 is
- Vasoconstriction
- Vasodilation
- Both a and b
- None of the above
Q. 25 of Quiz- (Que-ID : 3018)
The number of chromosome and the amount of DNA are changed in
- Metaphase and M phase
- Anaphase and S phase
- Interphase and S phase
- None of these
Q. 1 of Quiz- (Que-ID : 2894)
Ovulation in the human female normally takes place during the menstrual cycle
- at the mind secretory phase
- just before the end of the secretory phase
- at the beginning of the proliferative phase
- at the end of the proliferative phase
Q. 24 of Quiz- (Que-ID : 2817)
Which among is faster impulse transmission
- Chemical
- Both
- Electrical
- None of these
Q. 24 of Quiz- (Que-ID : 3467)
Animals have innate ability to escape from predation. Select the incorrect example:
- Colour change in Chameleon
- Enlargement of body by swallowing air in puffer fish
- Poison fangas of snakes
- Melaninin in moths
Q. 5 of Quiz- (Que-ID : 2873)
Which of the following STDs are not completely curable ?
- Chlamydiasis, gonorrhoea, trichomoniasis
- Chancroid syphilis, genital warts
- AIDS, syphilis, hepatitis B
- AIDS, genital herpes, hepatitis B
Q. 3 of Quiz- (Que-ID : 3046)
The complete oxidation of pyruvate take place in
- cell cytoplasm
- inner mitochondrial membrane
- mitochondrial matrix
- nucleus
Q. 3 of Quiz- (Que-ID : 3296)
The presence of gill slits, in the embryos of vertebrates, supports the theory of
- metamorphosis
- biogenesis
- organic evolution
- recapitulation
Q. 15 of Quiz- (Que-ID : 2908)
In human adult females oxytocin
- stimulates pituitary to secrete vasopressin
- causes strong uterine contractions during parturition
- is secreted by anterior pituitary
- stimulates growth of mammary glands
Q. 10 of Quiz- (Que-ID : 3203)
Which of the following is true about heartwood?
- They are dead but gives mechanical support to stem
- They are light in color
- They conduct water and minerals.
- 1 and 3
Q. 14 of Quiz- (Que-ID : 3432)
From which one of the following plants, the insecticide pyrethrum is prepared.
- Cymohopogen
- Tephrosia
- Crysanthemum
- Vitivera
Q. 18 of Quiz- (Que-ID : 3061)
Respiratory enzymes are located in
- mitochondrial matrix
- Cristae
- perimitochondrial space
- outer membrane
Q. 7 of Quiz- (Que-ID : 1716)
Disease transmitted by the head louse is-
- Plague
- rabies
- typhoid
- scurvy
Q. 19 of Quiz- (Que-ID : 2887)
Which of the following correctly describes the measures hat can be used to control over-population ?
- Educating people about the advantages of a small family
- Raising the age of marriage
- Encouraging family planning programme
- All of these
Q. 17 of Quiz- (Que-ID : 2935)
Phenotypic and genotypic ratio is similar in case of
- complete dominance
- incomplete dominance
- over dominance
- epistasis
Q. 19 of Quiz- (Que-ID : 2787)
Identify the incorrect match.
- Physiology ? Study of functions and processes of life
- Pedology ? Soil science
- Limnology ? Study of fresh water
- Kinesiology ? Fossil study
Q. 11 of Quiz- (Que-ID : 3054)
The significant morphological feature of passion flower is the presence of
- numerous corolla
- androphore
- gynophore
- androgynophore
Q. 5 of Quiz- (Que-ID : 3448)
Parasites that live inside the host body at different sities are called
- Ecto parasites
- Endo parasites
- Brood parasitism
- None of the above
Q. 22 of Quiz- (Que-ID : 3440)
Anticoagulant hirudin is found in:
- In Snake
- In Lizard
- In Leech
- In Scorpion
Q. 2 of Quiz- (Que-ID : 3370)
Which of the following is not used as a biopesticide ?
- Trichoderma harzianum
- Nucleopolyhedrovirus
- Xanthomonas campestris
- Bacillus thuringiensis
Q. 16 of Quiz- (Que-ID : 2934)
The inheritance of flower colour in Antirrhinum (dog flower) is an example of
- incomplete dominance
- co-dominance
- multiple alleles
- linkage
Q. 8 of Quiz- (Que-ID : 3151)
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. 4 of Quiz- (Que-ID : 2617)
The bile duct and pancreatic duct open together into which region of intestine
- Jejunum
- Ileum
- Duodenum
- Cardiac
Q. 11 of Quiz- (Que-ID : 3454)
Both the species benefit in
- Parasitism
- Mutualism
- Competition
- Predation
Q. 12 of Quiz- (Que-ID : 3130)
Water is lost in a liquid state in some plants through hydathodes. These hydathodes
- do not show any specificity in opening and closing
- remain closed during day
- remain closed at night
- remain always open
Q. 22 of Quiz- (Que-ID : 2940)
Which three scientists independently rediscovered Mendel’s work ?
- Avery, McLeod, McCarty
- Sutton, Morgan and Bridges
- Bateson, Punnet and Bridges
- de Vries, Correns and Tschemark
Q. 4 of Quiz- (Que-ID : 2747)
In the body both blood sodium and potassium is regulated by
- Pheromones
- Aldosterone
- Cortisols
- Androgens
Q. 5 of Quiz- (Que-ID : 2973)
Which requires min water for removal from body
- Ammonia
- Urea
- Uric acid
- None of the above
Q. 21 of Quiz- (Que-ID : 2964)
The structure in chromatin seen as ‘beads-on string’ when viewed under electron microscope are called
- nucleotides
- nucleosides
- histone octamer
- nucleosomes
Q. 6 of Quiz- (Que-ID : 3524)
Bhopal gas tragedy of 1884 took place because methyl isocyanate reacted with
- DDT
- Ammonia
- CO2
- Water
Q. 2 of Quiz- (Que-ID : 3520)
In Ozone Degradation which element acts as catalyst?
- Chlorine
- Flurine
- Oxygen
- Potassium
Q. 21 of Quiz- (Que-ID : 3214)
Bark includes all the tissues
- Lying outside the vascular cambium
- Formed by vascular cambium
- Formed by phellogen
- Phellem & phelloderm
Q. 22 of Quiz- (Que-ID : 2840)
Strobilanthus kunthiana flowers once in
- 5 years
- 12 years
- 20 years
- 50 years
Q. 21 of Quiz- (Que-ID : 2664)
which among the following is caused due to decreased respiratory surface area
- Astma
- Emphysema
- Sclerosis
- None of the above
Q. 15 of Quiz- (Que-ID : 2833)
There is no natural death in single celled organisms like Amoeba and bacteria because
- they cannot reproduce sexually
- they reproduce be binary fission
- parental body is distributed among the offspring
- they are microscopic.
Q. 21 of Quiz- (Que-ID : 3264)
One of the following are not formed in mosquito
- Sporozoites
- Ookinetes
- Oocystes
- Merozoites
Q. 14 of Quiz- (Que-ID : 3032)
The ability to regain or recover the lost or injured part of body is
- Aging
- Regeneration
- Abnormal development
- Primary inductio
Q. 8 of Quiz- (Que-ID : 3326)
The common cold is caused by
- Rhino viruses
- Streptococcus pnemoniae
- Salmonella typhimurium
- Plasmodium vivax.
Q. 5 of Quiz- (Que-ID : 2998)
Karyokinesis is the term used for
- division of cytoplasm
- division of nucleoplasm
- division of nucleus
- separation of daughter chromosomes
Q. 5 of Quiz- (Que-ID : 2618)
Which kind of gland is pancreas
- Exocrine
- Endocrine
- Compound gland
- None of the above
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