Virus - Mock Test 4

Question 31

Why Ulothrix is not considered a linear colony of cells

A) BEcause all cell are in a common cell wall B) Because cells exhibit a division of labour C) Because cells have plasmodesmatal connections D) All the above

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Question 32

Zoospores of Ulothrix Flacca

A) Without Contractile vacuole B) lack red eye spot C) Always macro zoosproes D) Have cell - wall

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Question 33

Ulothrix does not absorb excess of water from surrounding because

A) Pectin in cell wall B) Cellulose in cell .wall C) Low o p of cytoplasm D) Low i p of cell sap

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Question 34

Cells of Ulothrix are

A) Rectangular B) Spherical C) Cylidrical D) Ellipticle

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Question 35

Ulothrix in habits

A) Slow flowing warm water B) Stagnant cool water C) Slow flowing cool water D) Any of the above

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Question 36

Ulothrix is

A) Homothallic B) Heterothallic C) Protandrous D) 2 & 3 both

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Question 37

Which type of gametes re produced in Ulotrhix

A) Bilagellate zoogamets B) Bilagellate antherozoids C) Quadriflagellate D) Non motke gametes

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Question 38

When single aplanospre in produce in a cell of Ulothrix it is called

A) Akinete B) Hypnospore C) Oidium D) Torula

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Question 39

In Ulothrix is removed from water and placed in dry soil then it will produce

A) Aplanospores B) Hypnospores C) Akinetes D) Palemlla stage

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Question 40

Which types of spores fix to substratum by anterior end at the time of germination

A) Macrozoosopres B) Micro - zoospores C) Aplanospores D) Hypno spores

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