Biology F.Sc Part 1st (Helping Notes)Chapter No. 9 : Kingdom Plantae

Biology F.Sc Part 1st (Helping Notes)Chapter No. 9 : Kingdom Plantae

Biology F.Sc Part 1st (Helping Notes)Chapter No. 9  Kingdom Plantae

Key Points:

• On this chapter we can read how antheridia and archegonia of adiantum fluctuate from every  What are ornamental vegetation of fabaceae, how many genera and species of caesalpiniaceae are Acknowledged, 
• What are acquainted plants of circle of relatives caesalpiniaceae,
• Supply vegetative characters of caesalpiniaceae,
•  What is inflorescence and sort of flower in caesalpiniaceae,
•  What kind of calyx and corolla are observed in caesalpiniaceae,
•  What kind androecium and gynoecium are found in caesalpiniaceae,
•  Outline the subsequent: seed, 
• Ovule and integuments,
•  What are spermatocytes, 
• What's embryo sac,
•  Which flowers of fabaceae are important for drug treatments,
•  The seeds of which plant are used by jewellers, as weights,
•  What type of placentation and fruit is located in caesalpiniaceae,
•  What are decorative plant life of caesalpiniaceae or write clinical name of kachnar and amaltas.

How antheridia and archegonia of Adiantum differ from each other?

Every antheridium produces several spermatozoids which can be spirally coiled and multiciliated. The archegonium consists of a venter and a neck. The venter carries the egg or oosphere and is embedded in thallus. The antherozoids attain the archegonium, via swimming in water.

What are decorative flora of Fabaceae?

Some critical decorative plants encompass Lathyrus, Lupinus, Clitoria, Butea and many others.

What number of genera and species of Caesalpiniaceae are acknowledged?

This own family consists of approximately 152 genera and about 2300 species, basically tropical and sub-tropical in distribution. In Pakistan the own family is represented via 16 genera and approximately 60 species.

What are acquainted flora of family Caesalpiniaceae.?

1. Tamarindus indica Cassia fistula, Bauhinia variegata.
2. Supply vegetative characters of Caesalpiniaceae.
3. Dependancy: in most cases trees or shrubs, a few are woody climbers not often herbs.
4. Stem: Érect, woody, herbaceous, or mountaineering.
5. Leaves: Compound, pinnate, very rarely easy, stipulate.

What is inflorescence and sort of flower in Caesalpiniaceae?

Inflorescence: Axillary or terminal raceme or panicle or spikes not often cymose showy.

Vegetation: Bisexual, zygomorphic, not often actinomorphic, perigynous.

What sort of calyx and corolla are determined in Caesalpiniaceae?

Calyx: five sepals, loose or connate at base, regularly colored.

Corolla: in most cases 5 petals. Free.

What type androecium and gynoecium are found in Caesalpiniaceae?

Androecium: 10 stamens or fewer, rarely numerous, unfastened or variously united.

Gynoecium: A simple pistil 1-carpel ovary advanced, unilocular.

Outline the subsequent: seed, ovule and integuments.

Technically a seed may be defined as fertilized ovule, whilst an ovule is indehiscent megasporangium. The integuments are specialised protecting coverings around megasporangium which range in wide variety.

What are spermatocytes?

All seed producing plant life are called spermatophytes e.G., gymnosperms and angiosperms.

What's embryo sac?

The single healthy megaspore retained with the megasporangium germinated to shape an egg containing woman gametophyte known as an embryo sac. In proper seed flora (Gymnosperms and Angiosperms) it became decreased to few cells.

What are gymnosperms?

The gymnosperms are heterosporous, vascular plants. They produce seeds however no end result. The ovules in those vegetation are generally borne at the uncovered surfaces of fertile leaves. They display ordinary heteromorphic alternation of generations. Examples are Cycas, Pinus, Taxus, Cedrus and so on.

Which plants of Fabaceae are essential for medicines?

Many flowers of this own family are crucial for medicines e.G., Glycyrrhiza glabra for cough and bloodless, Clitoria ternatea used against snake chunk.

The seeds of which plant are used by jewellers, as weights?

The pink and white seeds of Abrus precatorious are used by jewellers as weights referred to as “ratti”.

What sort of placentation and fruit is located in Caesalpiniaceae?

Placentation: marginal; stigma easy.

Fruit: Legume.

What is medicinal importance of circle of relatives Caesalpiniaceae?

The leaves of Cassia alata are used to remedy ring trojan horse and pores and skin diseases. Cassia senna and obovata are cultivated for the leaves which yield the drug Senna, which is the bottom for a laxative (facilitating medicine). Oil extracted from the seeds of Cynometera cauliflora is implemented externally for skin sicknesses.

What is economic importance of Bauhinia and Tamarindus?

The leaves and flower’s bud of Bauhinia variegata are used as vegetable. The acidic fruit of Tamarindus indica are fit to be eaten and are rich in tartaric acid. The bark of Bauhinia perpurea and Tamarindus indica is used in tanning (converting into leather, or provide brown coloration).

Why seeds are bare in gymnosperms?

In gymnosperms, the megasporophylls bearing ovules are not folded and joined on the margins to shape an ovary. For this reason the seeds lie bare on the sporophylls.

What sort of cones are present in Pinus?

Male and lady cones are produced at the same plant. The male cones are small in length and are produced in clusters on an axis. The woman cones are large and conspicuous.