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11th Biology Weekly Test -3 ( Bio - Botany - Living World )

MABS Institution

11th Biology Weekly Test -3 ( Bio - Botany - Living World )-Aug 2020

Time : 1.00 Hours

Part - A

Multiple Choice Question - Answer All Question

Basidiomycetes do not possess this feature.

Clamp connection
Club Fungi
Dolipore septum
Lack sexual reproduction

Methanobacterium is _________ .

Cyanobacteria
Malobacteria
Eubacteria
Archaebacteria

1 nanometer = ___________

10⁹ meter
10^-9 meters
10⁸ meters
10^-6 meters

____________ causeswhite rust in crucufer.

Albugo candida
Amanita
Mucor
Rhizopus

Colour revealed by Gram positive bacteria after Gram staining is _________ .

red
indigo
dark violet
blue

Eschrichia coli and Salmonella are the examples of:

Aerobes
Obligate aerobes
Facultative anaerobes
Anaerobes

__________ is a new kingdom in seven kingdom classification.

Eubacteria
Plantae
Chromista
Archaebacteria

The flask shaped Ascocarp is _________.

Perithecium
Apothecium
Pseudothecium
Perithecium

ln lower fungi the hyphae is aseptate Multinucleate, known as _________.

Coenocytic mycelium
Plectenchyma
Parenchyma
Oidia

______________ is a thermophilic gram negative bacteria.

Rhizobium
Salmonella
Pseudomonas
Thermus aquaticus

Plasmids were discovered by _________ .

Ehrenberg
H.Bergy
Joshua Lederberg
Koch

Viroids differ from viruses in having:

DNA molecules with protein coat
DNA molecules without protein coat
RNA molecules with protein coat
RNA molecules without protein coat

Which among the bacteria breakdown hydrocarbons?

Pseudomonas putida
Lacto bacillus
Bifido bacterium
Nitrosomonas

Life on earth exists within a complex structure called_________.

Atmosphere
Biosphere
Stratosphere
Ozone

Which is the fastest growing cyanobacteria

Halobacterium
Methanobacterium
Spirulina
Thermoprotens

If a mycelium contains multinucleate and aseptate hyphae, it is described as ___________

Coenocytic
Septate
Aseptate
Multinucleate

The protein subunit in TMV is _____________.

Capsid
Core
Capsomere
Nucleus

In bacterial sexual reproduction, conjugation was demonstrated by ________ .

Griffith
Tatum
Lederberg and Tatum
Zinder

Ergot is obtained from __________ .

Penicillin
Clavicepsis purpurea
Aspergillus
Agaricus

____________ is a disease affecting animals.

Scab
Anthrax
Ring rot
Canker

Which one is Nitrifying bacteria?

Thiobacillus
Ferrobacillus
Hydrogenomonas
Nitrosomonas

The beneficial bacterias are known as

pathogens
probiotic
cyanobacteria
plasmid

Retting of fibre is caused by __________ .

Clostridium tertium
E.coli
C.acetobutylicum
C.telani

Asexual reproduction occurs by conidia _________.

Hydra and Yeast
Aspergillus and Penicillium
Bacteria and Amoeba
Spirogyra

Traditional classifications categorise fungi into ___________ classes.

3
4
5
6

Chrysophytes, Euglenoids, Dinoflagellates and Slime moulds are included in the kingdom

Animalia
Monera
Protista
Fungi

The genome of viroid is ______ .

linear ssRNA
dumb-bell shaped ssRNA
circular ssRNA
linear dsRNA

The special type of pili helps in conjugation called ________.

Flagella
Sexpili
Mesosomes
Plasmid

The base plate of T₄ phage has ______________ tail fibres.

5
4
6
8

Match the Following:

1 Adenoviruses a. + sense ssRNA -RT

2 Retro viruses b. dsRNA

3 Reo virus c. dsDNA

4 Parvo virus d. + sense ssDNA

1-d ,2-b ,3-a ,4-c
1-c ,2-d ,3-a ,4-b
1- c,2 - a,3 - b,4 - d
1 - b,2 - a,3 - b,4 -

______________ are superior among all living things as they have an additional ability of self-consciousness.

Animals
Plants
Humans
Monera

Mycorrhizae are the example of

Fungitasis
Amensalism
Antibiosis
Mutualism

Which one of the following organisms completely lacks a cell wall?

Eubacteria
Archaebacteria
Fungi
Mycoplasma

It is essential for the regulation of life and is made up of carbon, hydrogen, oxygen, nitrogen and phosphorus ________.

DNA
Mitochondria
Ribosome
Chromosome

Which is not a part of five kingdom classification?

Viruses
Monera
Protista
Mycoplasma

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