Morphology of Flowering Plants

Q1. Vegetative reproduction of Agave occurs through:

  1. Rhizome.
  2. Stolon.
  3. Bulbils.
  4. Sucker.
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Ans: 3. Bulbils.

Q2. Juicy hair-like structures observed in the lemon fruit develop from:

  1. Mesocarp and endocarp.
  2. Exocarp.
  3. Mesocarp.
  4. Endocarp.
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Ans: 4. Endocarp.

Q3. Monocarpellary ovary with marginal placentation and diadelphous stamens are characteristic of the family:

  1. Solanaceae.
  2. Liliaceae.
  3. Fabaceae.
  4. Brassicaceae.
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Ans: 3. Fabaceae.

Q4. Which one of the following is a true fruit?

  1. Cashew nut.
  2. Coconut.
  3. Apple.
  4. None of these.
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Ans: 2. Coconut.

Q5. The axillary buds arise:

  1. Endogenously from the pericycle.
  2. Exogenously from the tissues of the shoot apex.
  3. Endogenously from the cambium tissues.
  4. Exogenously from the innermost layers of cortex.
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Ans: 2. Exogenously from the tissues of the shoot apex.

Q6. The edible part in mango is:

  1. Epicarp.
  2. Tegmen.
  3. Mesocarp.
  4. Endocarp.
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Ans: 3. Mesocarp.

Q7. Roots developed from parts of the plant other than radicle are called.

  1. Taproots.
  2. Fibrous roots.
  3. Adventitious roots.
  4. Nodular roots
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Ans: 3. Adventitious roots.

Explanation:
Taproots and fibrous roots emerge from radicle. Nodular roots arise from root nodules. Adventitious roots usually arise from stems
and sometimes from leaves.

Q8. Fruit of Mangifera indica is:

  1. Berry.
  2. Drupe.
  3. Capsule.
  4. Siliqua.
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Ans: 2. Drupe.

Q9. Which of the following plants is used to extract the blue dye?

  1. Trifolium.
  2. Indigofera.
  3. Lupin.
  4. Cassia.
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Ans: 2. Indigofera.

Explanation:

Blue dye is obtained from Indigofera tinctoria which belongs to family fabaceae

Q10. In a cereal grain the single cotyledon of embryo is represented by:

  1. Coleoptile.
  2. Prophyll.
  3. Scutellum.
  4. Coleorrhiza.
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Ans: 3. Scutellum.

Q11. Botanical name of cauliflower is:

  1. Brassica oleracea var. capitata.
  2. Brassica campestris.
  3. Brassica oleracea var. botrytis.
  4. Brassica oleracea var. gemmifera.
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Ans: 3. Brassica oleracea var. botrytis.

Q12. Endosperm, a product of double fertilization in angiosperms is absent in the seeds of.

  1. Coconut.
  2. Orchids.
  3. Maize.
  4. Castor
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Ans: 2. Orchids.

Explanation:

Orchid seed is a non-endospermic seed, i.e., endosperm is absent in it. Endosperm is a nourishing tissue present in the seed which
nourishes the developing embryo. In orchid seed endosperm is absent because it is used up during the time of seed development.
Nourishment for germinating seed is provided by the food material present in cotyledons. Rests of the options are examples of
endospermic seeds.

Q13. In onion, food is stored in:

  1. Discoidal stem.
  2. Fleshy scale leaves.
  3. Adventitious roots.
  4. Scape type of stem.
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Ans: 2. Fleshy scale leaves.

Q14. The embryo in sunflower has:

  1. One cotyledon.
  2. Two cotyledons.
  3. Many cotyledons.
  4. No cotyledon.
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Ans: 2. Two cotyledons.

Q15. A family delimited by type of inflorescence is:

  1. Fabaceae.
  2. Asteraceae.
  3. Solanaceae.
  4. Liliaceae
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Ans: 2. Asteraceae.

Q16. Srem modified to perform the function of a leaf and having many internodes is called as:

  1. Phylloclade.
  2. Cladode.
  3. Offset.
  4. Phyllode.
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Ans: 1. Phylloclade.

Q17. In which of the following plants stems do not store the food material:

  1. Potato.
  2. Ginger.
  3. Onion.
  4. Colocasia.
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Ans: 3. Onion.

Q18. The tendrils in Pisum are modified:

  1. Leaflets.
  2. Terminal buds.
  3. Stipules.
  4. Axillary buds.
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Ans: 1. Leaflets.

Q19. Male and female gametophytes are independent and free-living in:

  1. Mustard.
  2. Castor.
  3. Pinus.
  4. Sphagnum.
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Ans: 3. Pinus.

Q20. Milky water of green coconut is:

  1. Liquid nucellus.
  2. Liquid of female gametophyte.
  3. Liquid endosperm.
  4. Liquid embryo.
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Ans: 3. Liquid endosperm