Plant Kingdom Flashcards
Artificial system of classification was given by
Carole us Linnaeus
Artificial system of classification was done in what basis
Gross superficial morphological characters that took vegetative Characters or on androecium
Artificial system of classics gave equal weightage to
Vegetative and sexual characters
Natural system of classification was given by
Bentham and hooker
Natural system of classification were based on?
Natural affinities that included not only external but also internal structure like anatomy ultra structure embryology and photochemistry
Phylogenetic system of classification believes that
Organisms occupying same taxa have evolutionary relationship(common ancestor)
Phylogenetic system of nomenclature is accepted
True
Numerical taxonomy features
It takes into account all the observable characters
Number and codes are allowed to each character
Hundreds of characters can be studied
Cytotaxonomy takes unto account
Cytological information like chromosome number structure and behaviour
Chemotaxonomy includes chemical constituentsof the plant to resolve confusions
True
Spirogyra has flagellated isogametes
False
Non-flagellated
Ulothrix gamete is motile
True
Eudorina has isogamtes
False
Aniso
At least half of the total carbon dioxide fixation on earth is carried out by algae
True
Many sorecies of porphyria laminaria and sargassum are amount 70specoes of marine alga used as food
True
Chlorella-unicellular ,used for?
Used as food supplements
Plant body of chlorophycea may be unicellular colonial or filamentous
True
Lure kids contain only proteins
False
Both protein and starch located in chloroplast
Chlorophycea-cell wall
Inner cellulose outer pectin
Pheophycea show great variation In size and form
True
Phycomycetes have biflagellate pyriform zoospores
True
Food in rhodophycea is stored in the form of………………which is very similar to………….
Floridian starch-very similar to amylopectin and glycogen
Sexual reproduction is oogamous and is accompanied by complex post fertilisation events…….a feature of?
Rhidophycea
Main plant body of bryophyte is haploid/diploid
Haploid
Talk about the Plant body of liverwort
Plant body is thalloid….and the thallus is dorsiventral
Green multicellular asexual buds that develop on small receptacles also called?
Gemmae,Gemma cups
Gametophyte of moss is divided into two stages
Protonema and leafy stage
Creeping green branched frequently filamentous stage that is formed directly from a spore
Protonema
Leafy stage arises from
Secondary protonema as a lateral bud
Which stage of mosses bear sex organs
Leafy stage
Vegetative reproduction takes place by fragmentation and budding in
Secondary protonema
These are used for medicinal purposes and act as soil binders
Pteridophyte plants
In pteridophyte the main plant body is
Sporophyte
Sporophylls form compact structures called
Strobilli (equisetum and selaginella)or cones
Male sex organ is antheridium
Female sex organ is archaegonium in?
Pteridophyte
Coralloid roots of cycas are an association of?
N2 fixing Cyanobacteria
Leaves of gymnosperms may be simple or compound
True
Cycas has simple leaves
False-pinnate leaves
The strobilli bearing microsporophykks and microsporangia are called
Male strobili
Pinups is dioecious
True
Cycas prevents geitonogamy,how?
Since in cycas male and female strobili are borne on different plants
Meaning of the word trimerous
Three members in each floral whorl
Femal sex organ in a flowering plant is
Pistil
Sporophytes generation is represented by one celled zygote
True
