cell cards Flashcards
what is a cell
the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. Microscopic organisms typically consist of a single cell, which is either eukaryotic or prokaryotic.
what is a Nucleus
the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
what is a Cytoplasm
the material or protoplasm within a living cell, excluding the nucleus.
what is a Cell membrane
the material or protoplasm within a living cell, excluding the nucleus.
what is a cell wall
a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants it consists mainly of cellulose.
what is a Mitochondria / Mitochondrion
A mitochondrion is a double-membrane-bound organelle found in most eukaryotic organisms. Mitochondria generate most of the cell’s supply of adenosine triphosphate, used as a source of chemical energy.
what is a Chloroplast
(in green plant cells) a plastid that contains chlorophyll and in which photosynthesis takes place.
what is a Golgi complex
The Golgi apparatus, also known as the Golgi complex, Golgi body, or simply the Golgi, is an organelle found in most eukaryotic cells. Part of the endomembrane system in the cytoplasm, it packages proteins into membrane-bound vesicles inside the cell before the vesicles are sent to their destination
what is a Endoplasmic reticulum
a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane. It usually has ribosomes attached and is involved in protein and lipid synthesis.
what is a Ribosome
a minute particle consisting of RNA and associated proteins found in large numbers in the cytoplasm of living cells. They bind messenger RNA and transfer RNA to synthesize polypeptides and proteins
what is a Lysosome
an organelle in the cytoplasm of eukaryotic cells containing degradative enzymes enclosed in a membrane.
what is a Vacuole
a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid.
what is a Organelle
any of a number of organized or specialized structures within a living cell.
what is a Prokaryote
a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles. Prokaryotes include the bacteria and cyanobacteria.
what is a Eukaryote
an organism consisting of a cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleus. Eukaryotes include all living organisms other than the eubacteria and archaebacteria.
