Question No:1
Root nodules of leguminous plants bear which microbe?
[A] Rhizopus
[B] Rhino Virus
[C] Rhizome
[D] Rhizobium
Question No:2
______ are free living bacteria which fix atmospheric nitrogen in soil,
[A] Azobacterium
[B] Acetobacterium
[C] Azotobacter
[D] Azabacterium
Question No:3
Fungi which form symbiotic associations with plants are ______.
[A] Rhizobium
[B] Mycorrhiza
[C] Azospirillum
[D] Oscillatoria
Question No:4
Mycorrhiza absorbs ______ from soil and passes it to the plant,
[A] K
[B] P
[C] Fe
[D] Mg
Question No:5
bacteria fix atmospheric N in aquatic and terrestrial environments.
[A] Cyanobacteria
[B] Azotobactor
[C] Methanobacteria
[D] Mycorrhiza
Question No:6
______ serve as an important bio-fertilizer in paddy fields,
[A] Cyanobacteria
[B] Azotobactor
[C] Methanobacteria
[D] Mycorrhiza
Question No:7
Which microbe adds organic matter to the soil to increase its fertility?
[A] Cyanobacteria
[B] Blue green algae
[C] Rhizobium
[D] Trichoderma
Question No:8
Assertion: In paddy field, cyanobacteria serve as important bio fertilizer.
Reason: Cyanobacteria can fix atmosphere nitrogen
[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason are false
Question No:9
Assertion: Prions are proteinaceous infectious agents.
Reason: Prions are made up of Nucleoproteins.
[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason are false
Question No:10
Assertion: LAB grow in milk & convert milk into curd.
Reason: LAB produce acid that coagulate and partially digest the milk protein.
[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason are false
Question No:11
Assertion: There are large holes present in Swiss cheese.
Reason: Large holes produce due to production of large amount of SOby Propioni bacterium sharmanii.
[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason are false
Question No:12
Assertion: Wine & Beer are produced without distillation.
Reason: Brewer’s yeast used for fermentation of malted cereals & fruit juices.
[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason are false
Question No:13
Assertion: Lipases are used in detergent formation.
Reason: Lipases help in removing oily stains from laundry.
[A] If both the assertion and the reason are true and the reason is a correct explanation of the assertion
[B] If both the assertion and reason are true but the reason is not a correct explanation of the assertion
[C] If the assertion is true but the reason is false
[D] If both the assertion and reason are false
Microbes in Human Welfare Mock Test-8
CategoriesNEET Biology