Competitive Exams: Revision Terminology Part 30

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Diatomite (or Kiesulghur) – Light transparent porous & chemically L wert - Agred Nobal used to absord nitroglycerine from which dynamite is made, used as filtration acid in sugar refining, sound proof rooms, abserb colours.

Sevege treatment – Anacystis, Chlamydomonas, chorella, Englena, Oscillatoria, pandorinia, scendesscumus spiraline.

Cephaleuros virexens causes red rust of tea (thea senesis) – also piper & mango orchards – (gram algae) .

Puccinia – Uredia & telia on wheat leaves.

Mushrooms are largest fungi ⇾ Reserve food is glycogen (not starch)

Vivipomous germination – Ahizophora.

Hiypogeal – pea

Epigeal – Bean

P. Maheswari – Introduction to Embryology of Angiosperm.

Radicle – root.

Plumale – shoot

H2O for activation of metabolism in metabolism is embryo.

Oxygen for fest resp to yield energy.

Capsella – Dicot weed, annrul herb, Cruciferaceae, polygomum type of embryo sac.

Ovules are amphitropous, bitegmic, Synergids, are hooked.

Embryogennesis – ongrad type, globular embryo, 6 cotyledons in culture, normally – 2 cotyladons.

Based cell – transverse division, terminal cell – vertical division at right angle to based cell.

Have high osmotic value at early stage & low osmotic value when mature.

Dispersion of seed – pinus seed & fruit of sycamore – wings.

Dispersion Pappas – sepal modified into hair like Structure (Pomachute mech)

Dispersion ballon shaped – Calyx in physalis, ovary in cardiospermun.

Dispersion censer mech – Poppy.

Cocklebur (Xanthium) – Fruits have many hooks.

Seeds of tiger nail (Martynia) – Curved hooks.

Ruellia – Jaculators pr. – become straight & throw food with force.

Coconut – mesocarp is fibrous.

Lotus – thalamus is spongy.

Monocot seed – wheat, waize, rice

Dicot seed – Gram, pea, Mustord, tomoto.

Apple, pear, loquat – pome – fleshy thalamus.

(exalbuminious) non endosporic – gram, pea, tomato – dicots.

(albuminious) Endosporic – maize, monocots.

Ovule ⇾ Caruncle (fleshy white structure on micropylar end due to proliferation at tip outer integument facilitates seed dispersal, hygroscopic) .

Ovule aril – from funicle or testa or both, it surrounds ovule eg. Litechi

Caryopsis – bicarpellary gynocieum, unilocular ovary eg Graminae.

Samara – seeds are winged, wings develop from pericarp.

Drape – endosperm is strong, one seeded from multicarp Ellery gynocieun eg mango, Coconut

Pepo – hard walled berry, triearpellary gynocieum inferior ovary.

Sugarcane, Cocoa, Rose, Bougainvillea – stem cuttings.

Grafting in dicot necessary that it has cambium layer.

Spiral – magnoliaceae.

Spirocyelic/Hermicyelic – Ranunculaceae.

Hypogynow – supnior ovary – Curciferae, Maluaceae, Solanaceae.

Perigynous – Caesalpiniaceae.

Epigynous – inferior ovary – composite, Cucurbitaeceae.

Petals & sepals fused ⇾ Tepals = Perianth (common in monocots)

Poller grains in Pollinia (Asclepiadaceae, orchidaceae)

Translator apparatus – family Asclepiadaceae – anthers are bicelled.

Syngensious – filaments free & anthers fused eg. Compositae

Synandrous – filmments & anthers fused eg. Cucurbita, Araceae.

Gynobasic style (arise from base of gynoecium) eg Labiatae

Apocarpus – Carpels free – Ranunculaceae, Magnoliaceae.

Syncarpus – Corpels fused – Craciferae, Malvaceae.

Cauilflowery – production of flowers on old stem from dormant buds – Ficus, Artocarpus.

Placentation – Marginal – unilocular ovary, from ventral suture – Legurninosae (febacae)

Parietal – unilocular ovary, ovules from inner walls eg. Cucurbitaceae.

Axile – multilocular ovary, ovules from central axis malraceae, Solanaceae, Libraceae.

Free central – unilocular ovary, ovules from central axis Dianthus (Caryophyllaceae)

Based – unilocular ovary, ovules thalamus, composite, graminae.

Superficial – multilocular ovary, ovules from inner septa water lify (Nymphea) .

Polyadelphous – Filownents fused in several bundles.

Mono Polyadelphous – Filownents fused in one bindle.

1st stage of male gametophyte – haploid pollen grain.

Pollen kit – oily layer outside pollen grain of lipids & carotenoids.


Anatropous – ovule is completely inverted – Compositae, Solanaceae.

Orthotropous – ovule, funicle & chalaza in one line – Cycas.

Hemianatropous – at right angle – Rananculus.

Campylotropous – Curved – Leguminosae, Coryophyllaceae.

Amphitropous – Curved, ovule horse shoe shaped – Alisma.

Circinotropous – one completer round, micropyle face up – Cactus.

Unitegmic – with one integument – Gefmnosperm, compositae, solanceaceae.

Bitegmic – Cruciferace, Malvaceae, Cucerbitaceae.

Ategmic – Loranthaceae, Santaleaceae.

Endosperen – free nuclear – most common – cotton, Zeamays.

Cellular – 1st is primary & then no. of Division for wall formation.

Monocots – Helobial – intermediate – large microphylar chamber & small chalazal chamber perisperm is the remnant of nucellus.

Monocots – albuminous – endosperm forms bulk.

Embryo (monocot) is small & consists of single cotyledon – Scutellum.

Radicle is protected by coleorhiza.

No endosperm – orchidaceae, podostemaceae, trapacae.

Grafting not possible in monocot – Cambium absent V. B. Closed.

Gridling not possible in monocot – V. B. are Scattered.

Eustele – dicots

Atcetostele – monocot

Xylem – Hadrom

Phloem – Leptom

Monocot root – radial, clored, exarch.

Dicot stem – open, endarch.

In dicot leaf – phloem on abaxial side.