Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Biology Vocabulary
Bio vocab
| Term | Definition |
|---|---|
| cell membrane | thin semifluid structure that separates the contents of a cell or organelle from its surroundings |
| cell wall | the definite boundary or wall that is part of the outer structure of certain cells, as a plant cell. |
| chloroplasts | a plastid containing chlorophyll and other pigments, occurring in plants and algae that carry out photosynthesis |
| cytoplasm | the cell substance between the cell membrane and the nucleus, containing the cytosol, organelles, cytoskeleton, and various particles. |
| endoplasmic reticulum | a network of tubular membranes within the cytoplasm of the cell, occurring either with a smooth surface (smooth endoplasmic reticulum) or studded with ribosomes (rough endoplasmic reticulum) involved in the transport of materials. |
| Golgi bodies | an organelle, consisting of layers of flattened sacs, that takes up and processes secretory and synthetic products from the endoplasmic reticulum and then either releases the finished products into various parts of the cell cytoplasm or secretes them to t |
| mitochondria | an organelle in the cytoplasm of cells that functions in energy production. |
| nuclear membrane | the double membrane surrounding the nucleus within a cell. |
| nucleus | a specialized, usually spherical mass of protoplasm encased in a double membrane, and found in most living eukaryotic cells, directing their growth, metabolism, and reproduction, and functioning in the transmission of genic characters. |
| ribosomes | a tiny, somewhat mitten-shaped organelle occurring in great numbers in the cell cytoplasm either freely, in small clusters, or attached to the outer surfaces of endoplasmic reticula, and functioning as the site of protein manufacture. |
| vacuole | a membrane-bound cavity within a cell, often containing a watery liquid or secretion. See diag. under cell. |
| prokaryote | any cellular organism that has no nuclear membrane, no organelles in the cytoplasm except ribosomes, and has its genetic material in the form of single continuous strands forming coils or loops |
| eukaryote | any organism having as its fundamental structural unit a cell type that contains specialized organelles in the cytoplasm |
| mitosis | cell division in which the nucleus divides into nuclei containing the same number of chromosomes |
| meiosis | A type of cell division that results in two daughter cells each with half the chromosome number of the parent cell. |
| monomer | A molecule that can be bonded to other identical molecules to form a polymer. |
| polymer | A substance that has a molecular structure built up chiefly or completely from a large number of similar units bonded together. |
| carbohydrates | Any of a group of organic compounds that includes sugars, starches, celluloses, and gums and serves as a major energy source in the diet of animals. These compounds are produced by photosynthetic plants and contain only carbon, hydrogen, and oxygen |
| lipids | A fatty or waxy organic compound that is readily soluble in nonpolar solvent (e.g. ether) but not in polar solvent (e.g water). Its major biological functions involve energy storage, structural component of cell membrane, and cell signaling. |
| proteins | A molecule composed of polymers of amino acids joined together by peptide bonds. It can be distinguished from fats and carbohydrates by containing nitrogen. Other components include carbon, hydrogen, oxygen, sulphur, and sometimes phosphorus. |
| nucleic acids | A complex organic substance present in living cells, esp. DNA or RNA, whose molecules consist of many nucleotides linked in a long chain. |
| chromosomes | any of the rod-shaped or threadlike DNA-containing structures of cellular organisms that are located in the nucleus of eukaryotes, are usually ring-shaped in prokaryotes (as bacteria), and contain all or most of the genes of the organism |
Created by:
r0407037
Popular Biology sets