Biology 1st Year Chapter 9

Kingdom Plantae includes all plants, from small mosses to towering trees, characterized by their ability to photosynthesize, producing energy from sunlight.

1st year Biology Chapter 9 Notes

…… are highly evolved of all the plants on earth: Angiosperms

Gametophyte in bryophytes is: Haploid

Pteropsida is divided into …… classes: 3

Embryo-sac in angiosperms in also called: Female gametophyte

Family Roasceae has …… genera in Pakistan: 29

It belongs to family caesalpiniaceae: Cassia fistula

The botanical name of egg plants is: Solanum molangena

Ferns belong to the group: Filicinae

A heterosporous plant is one that: Produces megaspores and microspores in separaue sporangia, giving rise to separate male and female gametophyte

Horsetails belong to sub-division: Sphenopsida

All bryophytes share certain characteristics which are: Reproductive cells in protective chambers

Important terrestrial adaptations that evolved exclusiverly in seed plants include all of the following except: Independent of the gametophyte plant from the sporophyte

bryophytes are generally thought to have evolved from: Green algae

The scientific name of rice is: Oryza sativa

The male gametophyte of an angiosperm is the: Germinated pollen grain

The class hepaticeae includes about …… species: 900

There are …… known species of plants: 360000

Important : Review all previous years’ 11 Class Past Papers for comprehensive practice and better exam preparation.

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