Identify the group of fungi that is not correctly matched with all the character given:

(1)

Phycomycetes:  

Mycelium – aseptate and coenocytic / Asexual reproduction by motile zoospores or by nonmotile aplanospores / spores – endogenously produced in sporangium

(2)

Ascomycetes:

Mycelium – unbranched and septate / Asexual spores are conidia / Conidia produced endogenously on conidiophores.

(3)

Basidiomycetes:  

Mycelium – branched and septate / Asexual spores are generally not found.

(4)  

Deuteromycetes: 

Only the asexual or vegetative phase of these fungi are known.
  • 1
  • 2
  • 3
  • 4

Match the names of the scientists with contribution and choose your answer from the codes given below:

 

Scientists

 

Contribution

I.

Beijerinek

1.

Gave the name ‘virus’

II.

Luc Montagnier  

2.  

Gave the term ‘conragium vivum fluidum’

III.  

Pasteur

3.

Discovered bacteriophages

IV.

Twort

4.

Crystallized TMV

V.

Stanley

5.

Isolated HIV

Codes:

 

I  

II

III

IV

V

(1)

5      

4

(2)

2

3

1

5

4

(3)

4

5

1

3

2

4

3

1

5

2

  • 1      

  • 2     

  • 3      

  • (4)  

Saprophytic protists are:

  • Slime moulds

  • Dinoflagellates

  • Chrysophytes

  • Protozoans

Match each item in Column I with one in Column II and select your answer from the codes given below:

 

Column I

 

Column II

A.

Diatoms

a.

Protein rich layer pellicle

B.

Dinoflagellates  

b.

Cell wall embedded with silica

C. 

Euglenoids

c.

Spores with true walls

D.

Slime moulds  

d. 

Cellulose plates in cell wall

Codes:

 

A    

B     

C     

D

1.

b

a

c

d

2.

b

d

a

C

3.

b

c

a

d

4.  

b

a

d

c
  • 1
  • 2
  • 3
  • 4

All the following statements regarding Basidiomycetes are correct except:

  • The mycelium is branched and septate

  • Asexual spores and vegetative reproduction generally not found

  • Sex organs are absent

  • Basidiospores are exogenously produced on the basidium

Match the Scientists in Column I with their contribution in the field of virology given in Column II and select your answer from the codes given below:

 

Column I

 

Column II

A.

Pasteur

a.

Gave the name ‘virus’

B.

Ivanowsky  

b.

Recognized tobacco mosaic is caused by microbes smaller than bacteria

C. 

Beijerinck

c.

Demonstrated extract of infected tobacco plants could cause infection in healthy plants

D.

Stanley

d. 

Showed that viruses could be crystallized

Codes:

 

A    

B     

C     

D

1.

a

b

c

d

2.

a

c

b

d

3.

b

a

c

d

4.  

b

a

d

c
  • 1
  • 2
  • 3
  • 4

Cells in some filamentous cyanobacteria that are specialized for nitrogen fixation are called:

  • Phycobilisomes

  • Chromatophores

  • Grana

  • Heterocysts

What is true for both (a) and (b)?

  • RNA is the genetic material

  • Capability to infect bacteria

  • Being obligate endoparasites

  • Can be killed by antibiotics

Which of the following are found in extreme saline conditions?

  • Archaebacteria

  • Eubacteria

  • Cyanobacteria

  • Mycobacteria

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 one of the following is wrong for fungi?

  • They are eukaryotic

  • All fungi possess a purely cellulosic cell wall

  • They are heterotrophic

  • They are both unicellular and multicellular

Methanogens belong to

  • eubacteria

  • archaebacteria

  • dinoflagellates

  • slime moulds

Chrysophytes, euglenoids, dinoflagellates and slime moulds are included in the kingdom

  • Protista

  • Fungi

  • Animalia

  • Monera

The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the

  • methanogens

  • thermoacidophiles

  • eubacteria

  • halophiles

One of the major components of cell wall of most fungi is

  • peptidoglycan

  • cellulose

  • hemicellulose

  • chitin

Which of the following statements is wrong for viroids?

  • They are smaller than viruses

  • They cause infections

  • Their RNA is of high molecular weight

  • They lack a protein coat

Which one of the following fungi contains hallucinogens?

  • Morchella esculenta

  • Amanita muscaria

  • Neurospora sp.

  • Ustilago sp.

Archaebacteria differ from eubacteria in

  • cell membrane structure

  • mode of nutrition

  • cell shape

  • mode of reproduction

The most abundant prokaryotes helpful to human in making curd from milk and in production of antibiotics are the ones categorized as

  • cyanobacteria

  • archaebacteria

  • chemosynthetic autotrophs

  • heterotrophic bacteria

Which one of the following does not differ in E.coli and Chlamydomonas?

  • Ribosomes

  • Chromosomal organization

  • Cell wall

  • Cell membrane

The cyanobacteria are also referred to as

  • protists

  • golden algae

  • slime moulds

  • blue-green algae

Which statement is wrong for viruses?

  • All are parasites

  • All of them have helical symmetry

  • They have ability to synthesize nucleic acids and proteins with the help of host cell 

  • Antibiotics have no effect on them

Nuclear membrane is absent in

  • Penicillium

  • Agaricus

  • Volvox

  • Nostoc

Which one single organism or the pair of organisms is correctly assigned to its or their named taxonomic group?

  • Paramecium and Plasmodium belong to the same kingdom as that of Penicillium

  • Lichen is a composite organism formed from the symbiotic association of an algae and a protozoan

  • Yeast used in making bread and beer is a fungus

  • Nostoc and Anabaena are examples of Protista

Maximum nutritional diversity is found in the group

  • Fungi

  • Animalia

  • Monera

  • Plantae

Organisms called Methanogens are most abundant in a

  • cattle yard

  • polluted stream

  • hot spring

  • sulphur rock

Which one of the following organisms is not an example of eukaryotic cells?

  • Escherichia coli

  • Euglena viridis

  • Amoeba proteus

  • Paramecium caudatum

Which one of the following is wrongly matched?

(1)

Puccinia      

– Smut

(2)

Root

– Exarch protoxylem

(3)

Cassia

– Imbricate aestivation

(4)  

Root pressure  

– Guttation
  • 1
  • 2
  • 3
  • 4

Single-celled eukaryotes are included in 

  • Protista                   

  • Fungi

  • Archaea                 

  • Monera

Membrane-bound organelles are absent in

  • Saccharomyces

  • Streptococcus

  • Chlamydomonas

  • Plasmodium

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