Anatomy and Physiology - Chapter 3 Flashcards

plasma membrane

nucleus

specialized structure that performs a specific function

<p>intracellular</p> Signup and view all the answers

<p>extracellular</p> Signup and view all the answers

<p>charge difference across the plasma membrane</p> Signup and view all the answers

<p>collection of glycolipids, glycoproteins and carbohydrates on the outer surface of the plasma membrane</p> Signup and view all the answers

<p>phospholipids and cholesterol</p> Signup and view all the answers

<p>double layer of phospholipid molecules</p> Signup and view all the answers

<p>hydrophilic</p> Signup and view all the answers

<p>'water-fearing'</p> Signup and view all the answers

<p>fluid-mosaic model</p> Signup and view all the answers

<p>limits the movement of phospholipids, providing stability</p> Signup and view all the answers

<p>cell surface molecule that allows a cell to identify other cells or other molecules</p> Signup and view all the answers

<p>protein with attached carbohydrate</p> Signup and view all the answers

<p>lipid with attached carbohydrate</p> Signup and view all the answers

<p>protein molecule that penetrates deeply into the lipid bilayer</p> Signup and view all the answers

<p>protein molecule attached to either the inner or outer surface of the lipid bilayer</p> Signup and view all the answers

<p>integral protein that allows a cell to attach to other cells or to extracellular molecules</p> Signup and view all the answers

<p>protein that attaches a cell to other cells</p> Signup and view all the answers

<p>protein that attaches a cell to extracellular molecules</p> Signup and view all the answers

<p>integral protein that allows ions or molecules to move from one side of the plasma membrane to the other</p> Signup and view all the answers

<p>one or more integral proteins arranged so that they form a tiny channel through the plasma membrane</p> Signup and view all the answers

<p>channel protein that is always open</p> Signup and view all the answers

<p>channel protein that can be opened or closed</p> Signup and view all the answers

<p>chemical signal</p> Signup and view all the answers

<p>channel protein that opens or closes in response to chemical signals</p> Signup and view all the answers

<p>channel protein that opens or closes when there is a change in charge across the plasma membrane</p> Signup and view all the answers

<p>integral membrane protein that moves ions or molecules from one side of the plasma membrane to the other</p> Signup and view all the answers

<p>carrier protein that moves one specific ion or molecule across the membrane</p> Signup and view all the answers

<p>carrier protein that moves two different ions or molecules in the same direction across the plasma membrane</p> Signup and view all the answers

<p>carrier protein that moves two different ions or molecules in opposite directions across the plasma membrane</p> Signup and view all the answers

<p>transport protein that moves specific ions and molecules; fueled by the breakdown of ATP</p> Signup and view all the answers

<p>protein or glycoprotein in the plasma membrane that has an exposed receptor site</p> Signup and view all the answers

<p>area of a receptor protein that attaches to specific chemical signals</p> Signup and view all the answers

<p>catalyzes chemical reactions on either the inner or outer surface of the plasma membrane</p> Signup and view all the answers

<p>allows only certain substances to pass through it</p> Signup and view all the answers

<p>movement of solutes from an area of higher concentration to an area of lower concentration</p> Signup and view all the answers

<p>concentration difference between two points, divided by the distances between the two points</p> Signup and view all the answers

<p>measure of how easily a liquid flows</p> Signup and view all the answers

<p>water diffuses across a selectively permeable membrane</p> Signup and view all the answers

<p>carrier proteins combine with substances and move them across the plasma membrane</p> Signup and view all the answers

<p>ATP-powered pumps combine with substances to move them across the plasma membrane</p> Signup and view all the answers

<p>ions moved across the plasma membrane by active transport, then move back down their concentration gradient by facilitated diffusion</p> Signup and view all the answers

<p>plasma membrane forms a vesicle around the substances to be transported</p> Signup and view all the answers

<p>'cell-eating;' solid particles are ingested and vesicles are formed</p> Signup and view all the answers

<p>'cell-drinking'; contain molecules dissolved in liquid</p> Signup and view all the answers

<p>receptor sites combine only with certain molecules</p> Signup and view all the answers

<p>materials manufactured by the cell are packaged in secretory vesicles</p> Signup and view all the answers

<p>fluid portion of the plasma of the cytoplasm</p> Signup and view all the answers

<p>supports the cell and holds the nucleus and other organelles in place</p> Signup and view all the answers

<p>aggregates of chemicals either produced or taken in by the cell</p> Signup and view all the answers

<p>cellular material outside the nucleus but inside the plasma membrane</p> Signup and view all the answers

<p>hollow tubes composed primarily of protein units called tubulin</p> Signup and view all the answers

<p>small fibrils that form bundles, sheets, or networks in the cytoplasm</p> Signup and view all the answers

<p>protein fibers that provide mechanical strength to cell</p> Signup and view all the answers