The Human Body in Health & Disease, 6th edition, Ch 3 Well Prepared Questions and Answers 100% A+

The Human Body in Health & Disease, 6th edition, Ch 3 Well Prepared Questions and Answers 100% A+ 3 main parts of a cell - ANS(1) plasma membrane (2) cytoplasm (3) nucleus plasma membrane (structure) - ANS(1) encloses the cytoplasm or "living matter" forming the outer boundary of a cell (2) composed of two layers of phospholipids, with cholesterol dispersed to help stabilize the membrane, and contains proteins that may penetrate completely through the layers (3) selectively permeable plasma membrane (function) - ANS(1) keep the cell whole and intact (2) serves as a GATEWAY between the fluid inside the cell and fluid around the cell (3) serves as a communication device cytoplasm - ANS(1) internal living material of cells (2) gel-like substance filling the space between the plasma membrane and the nucleus (3) contains organelles ,"little organs" - small specialized structures cytoskeleton - ANS"cell skeleton" - made up of microfilaments and micotubules to provide support and movement for the cell 7 organelles found in the cytoplasm - ANS(1) ribosomes (2) endoplasmic reticulum (3) golgi apparatus (4) mitochondria (5) lysosomes (6) centrosome (7) cell extensions ribosomes (structure) - ANS(1) made of 2 tiny subunits mostly made of ribosomal RNA (rRNA) (2) may be attached to rough endoplasmic reticulum (ER) or lie free in the cytoplasm ribosomes (function) - ANS(1) manufacture (synthesizes) enzymes and other protein compounds (2) PROTEIN FACTORIES endoplasmic reticulum (structure) - ANSnetwork of interconnect canals and sacs, some with ribosomes attached (rough ER) and some without attachments (smooth ER)