25 results found

Search Results for: ovule

Ovule

ovule A structure in seed plants which contains the megasporangium (nucellus), megaspore (embryo sac), a food store, and a... Read More

Integument

Definition noun (1) (anatomy) The outer protective covering of (the body of) an organism, such as cuticle, fur, shell, rind,... Read More

Sexual reproduction

Sexual reproduction is a mode of reproduction involving the fusion of haploid female gamete (egg cell) and haploid male... Read More

Seed

Definition noun, plural: seeds (botany) An encapsulated plant embryo; a fertilized ovule of a plant Supplement A seed is a... Read More

Raphe

raphe The part of the stalk of an anatropous ovule that is fused along the side of the... Read More

Integumentum commune

Integumentum commune --> integument a covering, one of the outer layers of tissue of a plant... Read More

Proembryo

proembryo (Science: botany) The series of cells formed in the ovule of a flowering plant after fertilization, but before the... Read More

Placenta

Definition noun, plural: placentae or placentas (1) (zoology) The vascular organ formed during gestation of female mammals... Read More

Gymnosperm

Definition noun, plural: gymnosperms A vascular plant in which the seeds are not enclosed by a ripened ovary... Read More

Pollinator

Pollinator A pollinator is the agent that moves pollen from the male anthers of a flower to the female stigma of a flower to... Read More

Self pollination

Definition noun (botany) A type of pollination in which the pollen from the anther of the flower is transferred to the... Read More

Embryo sac

Large oval cell in nucellus of ovule, in which fertilization of the egg cell and development of the embryo take... Read More

Parthenogenesis

To reproduce, by definition, means to produce new offspring. The process is referred to as reproduction, which is one of the... Read More

Anther

Definition noun, plural: anthers (1) Pollen-bearing structure in the stamen (male organ) of the flower usually located on... Read More

Cross-pollination

Definition noun (botany) A type of pollination in which the pollen from the anther of a flower is transferred to the stigma... Read More

Polytene chromosome

polytene chromosome (Science: cell biology) giant chromosomes produced by the successive replication of homologous pairs of... Read More

Impregnation

Impregnation 1. (Science: gynaecology) The act of fecundation or of rendering pregnant. 2. The process or act of saturation,... Read More

Impregnable

Impregnable (Science: biology) Capable of being impregnated, as the egg of an animal, or the ovule of a plant. See:... Read More

Chalaza

Chalaza in botany terminology, the part of an ovule to which the end of the stalk (funicle) is... Read More

Funicle

Funicle (Science: botany) The stalk of an... Read More

Carpel

Carpel (Science: plant biology) An organ (generally believed to be a modified foliar unit) at the centre of a flower,... Read More

Angiosperm

Angiosperms Definition What is an angiosperm? An angiosperm is a plant that produces flowers. The angiosperms, also... Read More