Morphology of Plants Set 1

All India Pre Medical Test (AIPMT)

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This set of Biology Multiple Choice Questions & Answers (MCQs) focuses on Morphology of Plants Set 1

Q1 | Which would do maximum harm to a tree ? The loss of:
  • Half of its branches
  • All of its leaves
  • Half of its flower
  • Half of its bark
Answer: All of its leaves
Q2 | Smallest dicotyledonous parasitic plant of the world is: (JIPMER 1997)
  • Coryadalis nana
  • Primula minutissina
  • Arcethobium minustissimum
  • Marsilea minuta
Answer: Arcethobium minustissimum
Q3 | Adventitious roots: (AFMC:1994,Chandigadh CETs 1997)
  • Develop from radical
  • Develop from flower
  • Develop from embryo
  • Develop from any part of plant body except radical
Answer: Develop from any part of plant body except radical
Q4 | The arrangement of leaves on stem is called:
  • Venation
  • Vernation
  • Phyllotaxy
  • Axis
Answer: Phyllotaxy
Q5 | Stem modified into flattened photosynthetic structure is:
  • Phyllode
  • Bulbil
  • Phylloclade
  • Tendril
Answer: Phylloclade
Q6 | Nodulated roots occur in: (R.P.M.T 1995)
  • Leguminoceae
  • Solanaceae
  • Malvaceae
  • Papilionaceae
Answer: Leguminoceae
Q7 | Insectivorous plants catch insects for obtaining:
  • Na - K
  • Taste
  • Phosphorus
  • Nitrogen
Answer: Nitrogen
Q8 | Petiole is modified into tendril in
  • Passiflora
  • Gloriosa
  • Pisum
  • clematis
Answer: clematis
Q9 | Thorn is a stem structure because it:
  • Develops from trunk
  • Develops from apical bud
  • modification of bank floralbud
  • is pointed
Answer: Develops from apical bud
Q10 | Vegetative reproduction of Agave occurs through:
  • Rhizome
  • Stolon
  • Bulbils
  • Sucker
Answer: Bulbils
Q11 | What is the eye of potato ?
  • Axillary bud
  • Accessory bud
  • Adventitious bud
  • Apical bud
Answer: Axillary bud
Q12 | If a raceme inflorescence is branched , it is call?
  • Umbel
  • spike
  • Cymose
  • Panicle
Answer: Panicle
Q13 | Zig-zag development of inflorescence axis is an example of:
  • Helicoid cyme
  • Scorpioid
  • Umbel
  • Compound umbel
Answer: Helicoid cyme
Q14 | Opposite decussate phyllotaxy is found in:
  • Calotropi
  • Mango
  • Hibiscus
  • Nerium
Answer: Calotropi
Q15 | A brightly coloured bract like covering associated with the banana inflorescence is called:
  • Spathe
  • Scape
  • Spiral
  • Scapigeron
Answer: Spathe
Q16 | Inflorescence is :
  • Number of flower present on an axis
  • Arrangement of flowers on an axis
  • Method of the opening of flower
  • Type of flower borne on peduncle
Answer: Arrangement of flowers on an axis
Q17 | In monocot male gametophyte is: (C.B.S.E.1990)
  • Megaspore
  • Nucleus
  • Microspore
  • Tetrad
Answer: Microspore
Q18 | A catkin of unisexual flower is found in:
  • Mulberry
  • Wheat
  • Onion
  • Grass
Answer: Mulberry
Q19 | Flower is a :
  • Modified cone
  • Modified spike
  • Modified branch system
  • Modified reproductive shoot
Answer: Modified reproductive shoot
Q20 | Flowers are always present in :
  • Cryptogamou
  • Pteridophytes
  • Angiosperms
  • Bryophytes
Answer: Angiosperms
Q21 | floral formula represents :
  • number and arrangement of floral parts
  • Number of flowers in an inflorescence
  • Type of flowers in a family
  • None of above
Answer: number and arrangement of floral parts
Q22 | From the life cycle point of view the most important part of a plants is:
  • Flower
  • Leaf
  • Stem
  • Root
Answer: Flower
Q23 | The vexillm, (stan dard) wings and keel in pea flowers constitute:
  • Calyx
  • Corolla
  • Androecium
  • Gynaecium
Answer: Corolla
Q24 | Diadelphous condition is present on:
  • Citru
  • Bombyx
  • Pisum
  • Brassica
Answer: Pisum
Q25 | Number of female flowers in a cyathium is:(keralaCET,05 UPCPMT,07 A.P.M.E.E. 1995)
  • One
  • Two
  • Three
  • Many
Answer: One
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