Trebouxia (division Chlorophyta) A genus of unicellular, non-motile green algae which are the commonest phycobionts in lichens; free-living Trebouxia cells are found on trees, fences, etc. Phycobiont cells show some differences from their free-living counterparts, e.g. in the proportion of photosynthetic products formed, and in the amount of such products released from the cells (which is greater in the phycobiont).
More From encyclopedia.com
T Cell , T cell T cell (T lymphocyte) Any of a population of lymphocytes that are the principal agents of cell-mediated immunity. T cells are derived from the… Cytology , Cytology is the branch of biology that studies cells, the building blocks of life. The name for this science is translated from kytos, the Greek term… Adherens Junction , adherens junction A cell junction that is commonly observed in epithelial (see EPITHELIUM) cells (e.g. those lining the intestine and those in cardia… Cell Membrane , cell membrane (plasmalemma, plasma membrane, protoplast) A sheet-like membrane, 7.5–10 nm thick, that forms a selectively permeable barrier enclosing… B Cell , B cell (B lymphocyte) A lymphocyte that is derived from stem cells in the bone marrow but does not mature in the thymus (compare T cell); in birds it… Schwann Cell , Schwann cell (neurilemma cell) A cell that forms the myelin sheath of a nerve fibre. Each cell is responsible for a single length of the fibre (calle…
About this article
Updated About encyclopedia.com content Print Article
You Might Also Like