Multiple Choice QuestionsMoss peat is used as a packing material for sending flowers and live plants to distant places because
it is easily available
it is hygroscopic
it reduces transpiration
it reduces transpiration
The thalloid body of a slime mould (Myxomycetes) is known as
Autosomal
Cytoplasmic
Y-linked
Y-linked
B.
Cytoplasmic
The members of Myxomycetes are called slime molds because they contain and secrete slime. They are included in lower fungi. Their somatic phase is a multinucleate, diploid holocarpic Plasmodium (a product of syngamy).
In Plasmodium, propagation occurs through fission or thick walled cysts or sclerotium-like structures. Reproduction takes place by the formation of uninucleate, thick-walled resting spores which are produced within minute fruiting bodies like structures i.e., the sporangia, however, the true fruiting bodies are absent in slime molds.
Fruiting bodies and mycelium are absent in lower fungi Protonoma is not formed in fungi.
In a moss the sporophyte
is partially parasitic on the gametophyte
produces gametes that give rise to the gametophyte
arises from a spore produced from the gametophyte
arises from a spore produced from the gametophyte
Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?
Hydrilla
Yucca
Viola
Banana
In which of the following forms is iron absorbed by plants?
Ferric
Ferrous
Both ferric and ferrous
Free element
Which one is wrongly matched?
Uniflagellate gametes – Polysiphonia
Biflagellate zoospores – Brown algae
Unicellular organism – Chlorella
Gemma cups – Marchantia
After karyogamy followed by meiosis, spores are produced exogenously in
Neurospora
Alternaria
Saccharomyces
Agaricus
Identify the wrong combination
Dryopteris → Rhizome
Cycas → Coralloid roots
Volvox → Colonial form
Marchantia →Pseudoelaters
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