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Plant Kingdom

Multiple 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

154.
The character found only in halophytes is

sunken stomata

vivipary

velamen tissue

heterophylly

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.