Theca - Wikipedia In microbiology and planktology, a theca is a subcellular structural component out of which the frustules of diatoms and dinoflagellates are constructed
THECA Definition Meaning | Dictionary. com plural thecae A case, covering, or sheath, such as the pollen sac of an anther, the spore case of a moss, or the outer covering of the pupa of certain insects
THECA | English meaning - Cambridge Dictionary The dura mater is a strong, fibrous membrane, forming a firm fibrous tube or theca This stimulates the theca cells of the ovary to secrete hormones Some species may have spines on several thecae
What does THECA mean? - Definitions. net In biology, a theca (plural thecae) is a sheath or a covering Theca generally refers to a protective casing or envelope around an organ, cell, or other structure, predominantly found in biological organisms However, its specific definition can vary depending on the context
Theca Explained If the pollen sacs are not adjacent, or if they open separately, then no thecae are formed In Lauraceae, for example, the pollen sacs are spaced apart and open independently