Embryology and Pollination in Plants

A collection of vocabulary flashcards related to plant embryology and pollination.

Self Pollination

Transfer of pollen grains from the anther of a flower to the stigma of the same flower.

Cross Pollination

The transfer of pollen grains from the anther of one flower to the stigma of another flower.

Anemophily

Pollination by air or wind.

Hydrophily

Pollination by water.

Zoophily

Pollination carried out by animals.

Autogamy

Pollination occurs within the same flower, involving the anther and stigma of that flower.

Geitonogamy

Pollination occurs between different flowers of the same plant.

Endosperm

The stored food in seeds that nourishes the developing embryo during germination.

Nuclear Endosperm

A type of endosperm where the primary endosperm nucleus divides without wall formation.

Cellular Endosperm

Primary endosperm nucleus divides, forming walls, resulting in a cellular structure.

Helobial Endosperm

A type of endosperm where the primary endosperm nucleus moves and divides to form two chambers.

Dicliny

Presence of only one kind of reproductive whorl in a flower, promoting cross-pollination.

Dichogamy

A mechanism in plants where the maturation of anthers and stigmas occurs at different times.

Double Fertilization

A unique process in angiosperms where one male gamete fuses with the egg and the other fuses with the polar nuclei.

Microgametogenesis

The development of male gametophytes from microspores within the anther.

Megagametogenesis

The process of developing megaspores into female gametophytes within the ovule.

Embryogenesis

The process of embryo development from the zygote.

Suspensor

A structure that helps in anchoring the embryo and pushing it into the nutrient-rich endosperm.

Plumule

The young shoot developed from the upper part of the embryonic axis.

Radicle

The part of the embryo that develops into the root.

Hypocotyl

The part of the embryonic axis below the cotyledons, connecting them to the radicle.

Diploid

A cell or organism having two sets of chromosomes, one from each parent.

Haploid

A cell or organism having a single set of unpaired chromosomes.