PLANT KINGDOM Flashcards
(131 cards)
System based mainly on vegetable characters or on the androecium structure (system given by linnaeus)
Artificial system
System based mainly on vegetable characters or on the androecium structure (system given by linnaeus)
Artificial system
Artificial system give equal weightage to
Vegetative and sexual characteristics
Artificial system give equal weightage to
Vegetative and sexual characteristics
____________are more easily affected by environment
Vegetative characters
System based on natural affinity among the organisms and consider not only the external feature but also the internal features like ultra structure ,anatomy ,embryology, phytochemistry
NATURAL CLASSIFICATION SYSTEM
Natural classification system was given by
George Bentham and Joseph Dalton Hooker
Numerical taxonomy which is carried out using computer is based on_______________.
All observable characteristics.
In numerical taxonomy each character is given________ importance and at the same time________ of characters can be considered
Equal
Hundreds
System based on cytological information like chromosome number, structure ,behaviour.
Cytotaxonomy
Chemotaxonomy is that which uses the _________constituent of plant to resolve confusions, are also used by taxonomists these days
Chemical
_________are thalloid
Algae
________ is colonial algae
Volvox
The filamentous form of algae are
Ulothrix
Spirogyra
In algae,
Marine forms such as _______ form massive plant body
Kelps
Gametes of ulothrix are
Flagellated(motile)
And
Similar in size
Gametes of spirogyra are
Non flagellated(non motile)
And
Similar in size
Isogamous reproduction shown by . (2)
Ulothrix and spirogyra
Fusion of 2 gametes dissimilar in size is ____________ reproduction
Anisogamous
Anisogamous reproduction is shown by
Eudorina
Fusion between one large, non-motile ___________ and a smaller, motile ___________ is termed as __________ .
Female gamete
Male gamete
Oogamous
Oogamous reproduction shown by
Volvox and Fucus
Sar,vol,fu,cha,red
In algae vegetative reproduction is by ___________
Fragmentation
In algae asexual reproduction is by __________ .
Zoospores