The character found only in halophytes is from Biology Plant Kin

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 Multiple Choice QuestionsMultiple Choice Questions

151.

Funaria gametophyte is

  • dioecious

  • heteroecious

  • autoecious

  • monoecious and autoecious


152.

Which one of the following is categorised under living fossils?

  • Selaginella

  • Metasequoia

  • Pinus

  • Cycas


153.

Chlorenchyma is known to develop in the

  • spore capsule of a moss

  • pollen tube of Pinus

  • cytoplasm of Chlorella

  • mycellium of a green mould such as Aspergillus


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154.

The character found only in halophytes is

  • sunken stomata

  • vivipary

  • velamen tissue

  • heterophylly


B.

vivipary

Vivipary is the phenomenon of having seeds germinating within the fruit, eg, halophytes (mangrove plants).

Sunken stomata are found in xerophytes, heterophylly (occurrence of different kinds of leaves in a single plant) is found in hydrophytes, while velamen tissue is found in epiphytes.

Velamen provides a mechanical function protecting the vascular tissues in the root cortex, shielding the root from transpirational water loss. It also adhered the plant to the substrate.


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155.

Largest moss is

  • Pogonatum

  • Funaria

  • Dawsonia

  • Polytrichum


156.

Which one of the following is a saprophytic bryophyte?

  • Riccia fluitans

  • Buxbaumia aphylla

  • Funaria hygrometrica

  • Sphagnum


157.

Iodine is obtained from

  • Laminaria 

  • Chlorella

  • Polysiphonia

  • Porphyra


158.

Agar-agar is obtained from

  • Chlorella

  • Spirogyra

  • Ulothrix

  • Gelidium


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159.

In Funaria, stomata are present on the

  • stem

  • leaves

  • capsule

  • apophysis


160.

Phycobilins absorb light of wavelength

  • 670-700 nm

  • 610-650 nm

  • 500-650 nm

  • 420-520 nm


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