having or showing a practical cleverness or judgment a police detective known to be an astute judge of character Synonyms shrewd, canny, clear-eyed, clear-sighted, hard-boiled, hardheaded, heady, knowing, savvy, sharp, sharp-witted, smartRelated Words artful, cagey (also cagy), crafty, cunning, devious, dodgy [chiefly British], foxy, guileful, pawky ...
Definition of the Smooth ER. The smooth endoplasmic reticulum, or smooth ER, is an organelle found in both animal cells and plant cells. An organelle is a sub-unit within a cell that has a specialized function.The main function of the smooth ER is to make cellular products like hormones and lipids.esson Summary. Smooth endoplasmic reticulum is a cellular organelle made up of a tube-like structure that folds over on itself many times. An organelle is a sub-unit within a cell that has a specialized function. It is responsible for making products and undergoing processes that the cell needs to function.
There are two types of endoplasmic reticulum, rough and smooth. The outer (cytosolic) face of the rough endoplasmic reticulum is studded with ribosomes that are the sites of protein synthesis. The rough endoplasmic reticulum is especially prominent in cells such as hepatocytes.The smooth endoplasmic reticulum lacks ribosomes and functions in lipid metabolism, carbohydrate metabolism, and detoxification of drugs.The smooth ER is especially abundant in mammalian liver and gonad cells. The lacy membranes of the endoplasmic reticulum were first seen in 1945 using electron microscopy.n some cells, there are dilated areas like the sacs of rough endoplasmic reticulum. The network of smooth endoplasmic reticulum allows for an increased surface area to be devoted to the action or storage of key enzymes and the products of these enzymes.