What does placentation mean?
Definition of placentation 1 : the arrangement of placentas and ovules in a plant ovary. 2a : the development of the placenta and attachment of the fetus to the uterus during pregnancy. b : the morphological type of a placenta.
What is the difference between placenta and placentation?
Placenta is the flattened cushion like structure to which ovules are attached in the ovary (gynoecium). Placentation is the arrangement of ovules within the ovary.
What is the meaning of placentation in flower?
placenta, plural Placentas, orPlacentae, in botany, the surface of the carpel (highly modified leaf) to which the ovules (potential seeds) are attached. The placenta is usually located in a region corresponding somewhat to the margins of a leaf but is actually submarginal in position.
What is placentation Class 12?
The arrangement of placenta and ovules within the ovary is called placentation. There are different kinds of placentation namely, marginal, parietal, axile, free central, basal and superficial placentation. In marginal placentation, placenta bearing ovules develop along the junction of the two margins of the carpel.
What is placentation in animals?
In biology, placentation refers to the formation, type and structure, or arrangement of the placenta. The function of placentation is to transfer nutrients, respiratory gases, and water from maternal tissue to a growing embryo, and in some instances to remove waste from the embryo.
What are types of placentation?
There are five types of placentation that occurs in flowering plants i.e. axile, marginal, parietal, basal, superficial placentation.
What is the placentation of mango?
Placentation when unilocular parietal, or basal. Ovules in the single cavity 1; pendulous, or ascending; apotropous; with ventral raphe, or with dorsal raphe; non-arillate; anatropous. Fruit and seed features. Fruit fleshy; indehiscent; a drupe; 1 seeded (usually).
How do you pronounce Chyme?
Traditional IPA: kaɪm. 1 syllable: “KYM”…Here are 4 tips that should help you perfect your pronunciation of ‘chyme’:
- Break ‘chyme’ down into sounds: [KYM] – say it out loud and exaggerate the sounds until you can consistently produce them.
- Record yourself saying ‘chyme’ in full sentences, then watch yourself and listen.