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1.
When several male gametes cluster around a passive female gamete , this phenomenon is known as ……. |
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2.
The median constriction is Cosmarium is known as ……… |
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3.
The sterile flask shaped structures of Sargassum is called ...............and their openings are called ......................... |
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4.
A member of Cyanophyceae showing false branching is ……….. |
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5.
The fertile branches of Sargassum are called ………… |
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6.
Chantransia is a juvenile stage in the life history of …………. |
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7.
In Sargassum , sex organs are produced in cavities , called …………… |
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8.
Tetraspores in Polysiphonia is produced after …………type of cell division. |
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9.
The connecting link of the two halves of Cosmarium is called …………… |
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10.
The shape of chloroplast in Spirogyra is …………. |
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11.
Hyaline cells are present in the leaves of ……….. |
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12.
The nurse cells are present in the sporogonium of …………. |
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13.
A moss is attached to its substrate by elongated cells called ………… |
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14.
Bryophytes are distinct from all other land plants in having an independent ……and a dependent ………. |
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15.
Pseudoelaters help in the dispersal of spores in ………… |
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16.
Retort cells are found in …………. |
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17.
Moss rhizoids are characterized by having ………..septum. |
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18.
each cell of Anthoceros thallus has …….. chloroplast and a ………… |
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19.
Riccia produces simplest type of …….. which lacks ………… and …………. |
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20.
The spores of Sphagnum germinate to give rise a green and ………protonema. |
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21.
In Lycophyta , the sporangia are borne singly on the ……face of the sporophyll , or in its axil. |
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22.
An adaxial outgrowth from the base of the leaves in Selaginella is called …………. |
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23.
Leaves of ferns are covered by borwn and scaly structures , called ………… |
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24.
Marsilea is found generally in ……… habitats. |
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25.
The vascular supply given out for a leaf from the main stele is called ………. |
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26.
Equisetum palustre prefers ………. Habitat. |
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27.
In Equisetum , carinal canals are formed by the disintegration of ……….elements. |
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28.
Circinate venation and presence of ramenta are the characteristic features of …………… |
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29.
Tmesipteris is a living member of the order ………… |
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30.
Polygonal areas on the surface of Equisetum cone represents the ………of the sporangiophores. |
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31.
The development of several embryos from a single zygote in Pinus is called ……… |
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32.
The sterile upper portion of the microsporophyll of Cycas is called ……… |
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33.
Ginkgo biloba is considered a …………fossil. |
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34.
The coralloid roots of Cycas are …………in nature. |
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35.
Number of ovules found on each ovuliferous scale of Pinus is ……… |
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36.
In plant kingdom , largest ovules are seen in ………… |
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37.
In Pinus , towards the pointed end of endosperm of seed , a thin membranous cap present representing the nucellar tissue ,
is called ………… |
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38.
Generally in gymnosperms , the development of zygote is ……… |
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39.
A megasporangium enclosed within an integument is the ……… of a seed plant. |
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40.
Rhynia was discovered from red stone beds of …………… |
