Plant Kingdom
1) Which of the following is not a feature of the brown algae?
A) Multicellularity and large size
B) Almost exclusively marine
C) Attached forms have hold fast
D) Most common pigment is chl b
Answer D) Most common pigment is chl b
Most common pigment in brown algae is chl a,chl c and fucoxanthin
2) Chl a + chl d + r-phycoerythrin are the pigments in the members of -
A) Rhodophyceae
B) Phaeophyceae
C) Chlorophyceae
D) Cyanophyceae
Answer A) Rhodophyceae
Common name of Rhodophyceae is red algae
3) Plant body of bryophyte is -
A) Less differentiated than that of algae
B) Equally differentiated to that of algae
C) More differentiated to that of algae
D) Is not differentiated at all
Answer C) More differentiated to that of algae
More differentiated to that of algae
4) Presence of extrernal ears and body hair are charactericrtics of
A) Reptiles
B) Birds
C)Mammals
D) Fishes
Answer C)Mammals
Presence of external ears and body hair are characterisctics of class mammalia
5) Which is the prominent phase in the life cycle of bryophytes -
A) Gametophyte
B) Sporophyte
C) Seta
D) Sporogonium
Answer A) Gametophyte
Sporophyte is dependent on gametophyte
6) Bryophytes are not characterised by -
A) Well developed root system and vascular tissue
B) Rhizoids
C) Alternation of generation
D) Presence of chlorophyll
Answer A) Well developed root system and vascular tissue
Bryophytes lack well developed root system and vascular tissues
7) In bryophytes meiosis occurs in -
A) Spores
B) Gametes mother cells
C) Gametes
D) Spore mother cells in capsule / sporophyte / sporogonium
Answer D) Spore mother cells in capsule / sporophyte / sporogonium
Meiosis occurs in spore mother cell and produces spores
8) What is the importance of pteridophytes?
A) They are used for medicinal purposes
B) They are frequently grown as ornamental plants
C) They are used as soil binders
D) All
Answer D) All
Pteridophytes have many economic importance
9) The pteridophytes are mostly-
A) Heterosporous
B) Homosporous
C) Aquatic
D) Trees
Answer B) Homosporous
Except some species most are homosporous
10) Prothallus in pteridophyte is -
A) Nonvascular, haploid, multicellular small mostly photosynthetic thalloid gametophyte
B) Vascular, n, multicellular sporophyte
C) 2n, free-living gametophyte
D) Is thallus i plant body in same pteridophytes
Answer A) Nonvascular, haploid, multicellular small mostly photosynthetic thalloid gametophyte
Prothallus is independent
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