Morphology of flowering plants
1. The most dominant plants of present day vegetation are
A. Thallophytes
B. Bryophytes
C. Flowering plants
D. Pterdophytes
Answer: C
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2. The origin of root hairs and lateral roots is , respectively ,
A. Exogenous and endogenous
B. Endogenous and exogenous
C. Both endogenously
D. Both exogenously
Answer: A
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3. The primary growth in root is due to
A. Zone of maturation
B. Zone of cell division
C. Zone of cell elongation
D. Meristematic region
Answer: C
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4. Root shows negative geotropic in
A. Pothos
B. Ficus
C. Acanthorhiza
D. Sonneratia
Answer: D
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5. When adventitious root shows swelling at regular intervals for food storage , it is called
A. Tubercular root
B. Nodulose root
C. Moniliform root
D. Annulated root
Answer: C
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6. Pneumatophores are generally present in
A. Mangrove plants
B. Xerophytes
C. Hydrophytes
D. Epiphytes
Answer: A
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7. Root which grow from branches of Banyan tree are
A. They are branches of the shoot system
B. They are prop roots
C. They are tendrils
D. They are special organs
Answer: B
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8. The underground modification of stem occurs for which one of the following function ?
A. Perennation
B. Storage of food
C. Vegetative propagation
D. All of these
Answer: D
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9. Modified stem into green , flattened branches of unlimited growth for assimilatory function is called
A. Phyllode
B. Phyllocblade
C. Cladode
D. Chylocauly
Answer: B
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10. Leafless stem of onion which produces cluster of terminal flowers is called
A. Peduncle
B. Floral axis
C. Scape
D. Rachis
Answer: C
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11. Analogous structure of phylloclade is called
A. Pitcher
B. Phyllode
C. Cladode
D. Bulbil
Answer: B
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12. Non-endospermic seed is absent in
A. Soyabean
B. Tulip
C. Lupin
D. Sunhemp
Answer: B
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13. Which is not a modification of stem ?
A. Tuber of potato
B. Pitcher of Nepenthes
C. Corm of Colocasia
D. Rhizome of ginger
Answer: B
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14. A lateral branch with short internodes and each node bearing a rosette of leaves and tuft of roots is known as
A. Sucker
B. Offset
C. Stolon
D. Decumbent
Answer: B
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15. Acaulescent habit is related to
A. Allium sp.
B. Iberis sp.
C. Polyalthis sp.
D. Palms
Answer: A
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16. Tripinnate compound leaf is the feature of
A. Moringa
B. Psidium
C. Rosa
D. Mimosa
Answer: A
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17. Reticulate venation is the feature of dicots but some monocots also exhibits this venation . The one following this type of vennation is
A. Calophyllum
B. Smilax
C. Eryngium
D. Coraymbium
Answer: B
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18. When leaves stand at right angle to next upper and lower pair , then this phyllotaxy is called
A. Alternate
B. Opposite decussate
C. Opposite superposed
D. Whorled
Answer: B
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19. The terminal leaflets modify into curved hood for climbing in
A. Wild pea
B. Cocklebur
C. Cat's nail
D. Tiger's nail
Answer: C
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20. The duration between the development of two consecutive leaves is called
A. Plastochron
B. Phytochrome
C. Phytron
D. None of these
Answer: A
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21. In Nepenthes (Pitcher plant) the pitcher is formed due to modification of
A. Leaf leaves
B. Lamina
C. Aestivation
D. Leaf apex
Answer: B
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22. Occurrence of more than one type of leaves on the same plant is
A. Vernation
B. Venation
C. Aestivation
D. Heterophylly
Answer: D
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23. The swollen petiole of Eichhornia is made up of
A. Aerenchyma
B. Parenchyma
C. Chlorenchyma
D. Collenchyma
Answer: A
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24. Inflorescence with thick , fleshy axis and large-colored bract is
A. Spathe
B. Spadix
C. Spikelet
D. Hypanthodium
Answer: B
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25. Bisexual sessile and bracteates flowers developing acropetally in
A. Raceme
B. Panicle
C. Spike
D. Corymb
Answer: C
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