Classification And Plant Kingdom -past Years MCQs

Question 1

Curing of tea leaves is brought about by the activity of -

Answer 1

Bacteria

Question 2

The bacterium CLOSTRIDIUM BOTULINUM is a _______ anaerobe .

Answer 2

Obligate

Question 3

Slimy mass of multinucleate protoplasm ,having pseudopodia -like structures for engulfing food, reproduction through fragmentation or zoospores -

Answer 3

Myxomycetes

Question 4

Brinjal causes the disease root -knot and the pathogen respnsible is -

Answer 4

Meloidogyne incognito

Question 5

Riccia , dryopteris and cycas have ________ male gametes

Answer 5

Flagellated

Question 6

Flowering plant with nodules containing filamentous N2 fixing microorganisms -

Answer 6

Casuarina equisetifolia

Question 7

Thermococcus , methanococus and methanobacterium exemplify archaebacteria that contain protein _____________ to eukaryotic core histones .

Answer 7

Homologous

Question 8

The features that distinguish Gnetum from cycas and Pinus and showing affinities with angiosperms -

Answer 8

Presence of vessel elements and absence of archegonia .

Question 9

Ustilago has _________lie cycle .

Answer 9

Haplontic

Question 10

Which is a symbiotic N2 fixer - glomus / frankia ?

Answer 10

Frankia

Question 11

Protista is similar to Plantae and and different from MONERA in -

Answer 11

Nuclear membrane

Question 12

A prokaryotic autotrophic N2 fixing symbionts is found in -

Answer 12

Cycas

Question 13

The pathogen MICROSPORUM responsible for ringworm disease belongs to which phylum of kingdom fungi -

Answer 13

PHYCOMYCETES

Question 14

Cycas and adiantum resemble each other in having -

Answer 14

Motile sperms

Question 15

Max. Nutritional diversity is found in kingdom -

Answer 15

MONERA

Question 16

Phosphorous is the constituent of cell membrane , certain nuclei acids an all proteins . T/F

Answer 16

F

Question 17

Anabaena and nostoc are capable of fixing nitrogen in free living state also -T/F

Answer 17

T

Question 18

A N2 fixing microbe associated with Azolla in rice fields is -

Answer 18

Anabaena

Question 19

In the 5 kingdom classification , chlamydomonas and chlorella have been included in -

Answer 19

Kingdom PROTISTA

They were earlier placed in algae within plant kingdom becoz of presence of cell wall )

Question 20

Megasporangium is equivalent to -

Answer 20

Ovule

Question 21

Besides paddy fields , Cyanobacteria are found in vegetative part of which plant ?

Answer 21

Cycas

Question 22

Pigment-containing membranous extensions in some Cyanobacteria are -

Answer 22

Chromatophores

Question 23

In algae , fertilization is ______________ .

Answer 23

External

Question 24

Male gametes are _________ in ectocarpus. ( flagellated / non flagellated )

Answer 24

flagellated

Question 25

Polysomes are not found in prokaryotes. T/F ?

Answer 25

T

Question 26

Chromatophores take part in -

Answer 26

Photosynthesis

Question 27

Conifers are adapted to tolerate extremes of conditions due to -

Answer 27

Thick cuticle

Question 28

Tetanus is a ______ disease .

Answer 28

Bacterial

Question 29

Mumps is a ______ disease .

Answer 29

Viral

Question 30

Cholera is a _______ disease .

Answer 30

Bacterial

Question 31

Biological name of wheat -

Answer 31

Tritium aestivum

Question 32

The type of genetic material in retro virus -

Answer 32

Single stranded RNA

Question 33

TYPE OF GENETIC MATERIAL IN GEMINI VIRUS -

Answer 33

Single stranded DNA

Question 34

Infoldings of cell membrane in PROKARYOTES -

Answer 34

MESOSOMES

Question 35

Type of genetic material in adeno virus -

Answer 35

Double stranded DNA ( non-circular )

Question 36

Glycocalyx is the _______ layer of bacteria

Answer 36

Outermost

Question 37

Rhizobium is fre living or symbiotic ?

Answer 37

Both

Question 38

Methanobacterium digest cellulose in ______ conditions .

Answer 38

Anaerobic

Question 39

Ø- 174 has which type of genome -

Answer 39

Ss DNA