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AP Bio chapter 4 Flashcards

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15223583537Domain of prokaryotic cellsBacteria and Archaea0
15223589378Basic features of all cellsPlasma membrane Semifluid substance called cytosol Chromosomes (carry genes) Ribosomes (make proteins)1
15223598465Characteristics of prokaryotic cellsNo nucleus DNA in nucleoid No membrane-bound organelles Cytoplasm bound by the plasma membrane2
15223612277Characteristics of eukaryotic cellsDNA in a nucleus that is bounded by a membranous nuclear envelope Membrane-bound organelles Cytoplasm in the region between the plasma membrane and nucleus Larger than prokaryotic cell3
15223624588Plasma membraneselective barrier that allows sufficient passage of oxygen, nutrients, and waste to service the volume of every cell Phospholipid bilayer4
15223642171Phospholipid bilayerA double layer of phospholipids that makes up plasma and organelle membranes. hydrophobic tails are on the inside hydrophilic heads are on the outside5
15223735211Picture of a eukaryotic cell and prokaryotic cell6
15223745246Picture of plant cell7
15223758781Ribosomes and where they do what they douse the information from the DNA to make proteins ribosomal RNA + protein Carry out protein synthesis in cytosol, Rough ER, and nuclear membrane8
15223768071Nucleuscontains most of the cell's genes nuclear envelope encloses the nucleus Pores regulate the entry and exit of molecules from the nucleus9
15223789197Chromosomes/chromatinIn the nucleus, DNA is organized into chromosomes Each chromosome is one long DNA molecule associated with proteins (histones) DNA and proteins of chromosomes are together called chromatin Chromatin condenses to form discrete chromosomes as a cell prepares to divide10
15223821804Nuceloluslocated within the nucleus and is the site of ribosomal RNA (rRNA) synthesis11
15223865140endomembrane systemregulates protein traffic and performs metabolic functions in the cell pretty much all of the organelles connected through transfer by vesicles12
15223888342Smooth ERMakes lipids metabolizes carbs Detoxifies stores calcium13
15223905410Rough ERHas bound ribosomes, which secrete glycoproteins (proteins covalently bonded to carbohydrates) Distributes transport vesicles, proteins surrounded by membranes Is a membrane factory for the cell14
15223915322Golgi ApparatusModifies products of the ER Manufactures certain macromolecules Sorts and packages materials into transport vesicles15
15224605956Lysosomemembranous sac of hydrolytic enzymes that can digest macromolecules16
15224613709Phagocytosisof cell can engulf another cell forms a food vacuole lysosome fuses with the food vacuole and digests the molecules17
15224646274Picture of phagocytosis18
15224655863Vacuoleslarge vesicles derived from the endoplasmic reticulum and Golgi apparatus19
15224663000Food vacuolesformed by phagocytosis20
15224669002Contractile Vacuolespump excess water out of cells21
15224673031Central Vacuolesfound in many mature plant cells, hold organic compounds and water22
15224694534Mitochondriasites of cellular respiration, a metabolic process that uses oxygen to generate ATP23
15224698116Chloroplastfound in plants and algae, are the sites of photosynthesis Contain green pigment24
15224713257Similarities between chloroplast and mitochondriaEnveloped by a double membrane Contain free ribosomes and circular DNA molecules Grow and reproduce somewhat independently in cells25
152247619662 membranes of mitochondriasmooth outer membrane and an inner membrane folded into cristae26
15224774016Compartments of inner membrane of mitochondriaintermembrane space and mitochondrial matrix metabolic steps of cellular respiration are catalyzed in the mitochondrial matrix27
15224801701What is cristaefolds of the inner membrane present a large surface area for enzymes that synthesize ATP28
15224839292Chloroplast structureThylakoids, membranous sacs, stacked to form a granum Stroma, the internal fluid chloroplast is one of a group of plant organelles called plastids29
15224852688picture of chloroplast30
15224859196Peroxisomesproduce hydrogen peroxide and convert it to water31
15224869950Cytoskeletona network of fibers extending throughout the cytoplasm organizes the cell's structures and activities, anchoring many organelles interacts with motor proteins to produce motility32
15224889491Three main types of fibers that make up the cytoskeletonMicrotubules are thickest Microfilaments are thinnest Intermediate are middle33
15224965364Centrosomemicrotubule organizing center34
15224981219Cell wallprotects the plant cell, maintains its shape, and prevents excessive uptake of water made from cellulose35
15224995159Extra Cellular matrix (ECM)made up of glycoproteins ECM proteins bind to receptor proteins in the plasma membrane called integrins36
15225224819Plasmodesmatachannels between adjacent plant cells37
15225232172Three main types of cell junctions in animalsTight junctions Desmosomes Gap junctions38
15225240738Fluid mosaic modelmembrane is a mosaic of protein molecules in a fluid bilayer of phospholipids39
15225262053Integral proteinspenetrate the hydrophobic interior of the lipid bilayer40
15225267374Peripheral proteinsloosely bound to the surface of the membrane41
15225286938How do cells recognize each other?By binding to surface molecules, often carbohydrates, on the plasma membrane42
15225293635What can pass through the phospholipid membrane rapidly?Small hydrophobic (nonpolar) molecules43

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