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11738358634Eukaryotic Cellcell that has a nucleus surrounded by a membrane, contain ER, mitochondria, Golgi Bodies.0
11738370715Prokaryotic Cella cell from domain Archaea or Bacteria which is usually unicellular and lacks a distinct nucleus and has no membrane-bound organelles.1
11738379333Nuclear Membranea double membrane that encloses the nucleus in which its outer part is continuous with the endoplasmic reticulum.2
11738381584Nucleolusmanufactures the cell ribosomes.3
11738397139Chromatinlocated in the eukaryotic nucleus; it is composed of DNA double helix wrapped in special proteins called histones.4
11738404047Nucleoidthe space in the prokaryotic cell's cytoplasm where genetic information (DNA) is found.5
11738424778Ribosomessite of protein synthesis6
11738427793Smooth Endoplasmic Reticulum (SER)Fatty acid and steroid synthesis (makes lipids); detoxifies toxic substances and contains no ribosomes.7
11738430114Rough Endoplasmic ReticulumAn endomembrane system which functions to compartmentalize the cell providing a site-specific for protein synthesis with membrane-bound ribosomes and plays a role in intracellular transport.8
11738443849The Golgi-Complexis a membrane-bound structure that consists of a series of flattened membrane sacs called cisternae that functions to synthezise and package materials for transport (in vesicles) and the production of lysosomes.9
11738451034Mitochondriahave a double membrane, the outside that is smooth and in the inside that is highly convoluted forming folds called cristae (to increase surface area) which contain enzymes important to ATP production.10
11738466025Lysosomesare membrane-enclosed sacs that contain hydrolytic enzymes which are important in intracellular digestion, the recycling of cell's organic materials, and programmed cell death (apoptosis).11
11738482486Apoptosisis an orderly process of programmed cell death in which the cell's contents are packaged into small packets of membrane for "garbage collection" by immune cells. Cancer cells can be eliminated this way along with infected cells. Research suggests that menstruation is signaled to begin with apoptosis.12
11738502573Large vacuolesare present in plants and serve many functions such as storage of pigments and the large central vacuole holds large amounts of water or food.13
11738518717vesiclessmall membrane sacs that specialize in moving products into, out of, and within a cell14
11738529503As surface area of a cell increasesvolume decreases.15
11738536255chloroplastsorganelles containing chlorophyll which is responsible for the green color and are the key light-trapping molecules of photosynthesis. These organelles have a double outer membrane that creates compartmentalization for thylakoids where the chlorophyll is housed to produce ATP and NADPH to fuel carbon-fixing reactions in the stroma where molecules of CO2 are converted to carbohydrates (glucose, C6H12O6).16
11738574119Cytoskeletonnetwork of protein filaments within some cells that helps the cell maintain its shape and is involved in many forms of cell movement. Composed of microtubules that can form flagella or cilia, move chromosomes during nuclear division or provide a pathway for motor proteins to transport vesicles throughout the cell and composed of microfilaments for cell shape and movement.17
11738600186stomach cells- chief cells produce: pepsinogen which forms pepsin enzyme to breakdown protein. - parietal cells produce: HCl. - mucous cells produce: mucous lubricating stomach.18
11738609048kidney cellsnephrons: functional unit of the kidney made up of tubules and a glomerulus through which filtrate passes making urine.19
11738618502Root cellscells in the root have root hairs that absorb water from the soil; these cells have no chloroplasts.20
11738620404Urinary bladder cellsepithelial cells that are highly elastic to accommodate expansion and contraction.21
11738652270small intestinal cellsCells that secrete enzymes to further hydrolyze the polysaccarides into monosaccharides and these cells absorb these nutrients via villi and microvilli.22
11738699406Stem cellsunspecialized cells that retain the ability to become a wide variety of specialized cells23
11738702753Leaf cellsCells of a plant that have lots of chloroplasts to absorb sunlight24
11738718517neurona nerve cell; the basic building block of the nervous system.25
11738721543dendritesa neuron's bushy, branching extensions that receive messages and conduct impulses toward the cell body26
11738722223cell bodyLargest part of a typical neuron; contains the nucleus and much of the cytoplasm27
11738723011axon hillockthe cone-shaped area on the cell body from which the axon originates28
11738725502AxonA threadlike extension of a neuron that carries nerve impulses (ions like Na+ and K+ moving into and out of the axonal membrane) away from the cell body.29
11738731857myelin sheathA layer of fatty tissue segmentally encasing the fibers of many neurons; enables vastly greater transmission speed of neural impulses as the impulse hops from one node to the next.30
11738733559axon terminal endcontain neurotransmitters (chemical released when impulse arrives)31
11738735243Synapsethe junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron32
11738736709Neurotransmitterschemical messengers that cross the synaptic gaps between neurons33
11738740382stimulusa signal to which an organism responds34
11738743227types of neuronssensory, motor, interneurons35
11738745325red blood cells (erythrocytes)contain hemoglobin that transports oxygen36
11738750134white blood cells (leukocytes)respond to injury or infection37
11738757962All cells havecell membrane, cytoplasm, DNA, ribosomes38
11738761966Action Potential (AP)an electrical impulse changing the permeability of a membrane39
11738775116cells of the alveoliare very thin and produce a fluid to increase the diffusion of gases between the alveoli air and the blood where CO2 diffuses out of the capillaries and O2 diffuses into the capillaries.40
11738792647Plant cell wallis a protective structure made of cellulose (polysaccharide) fibrils.41
11738794744Cell membrane (plasma membrane)phospholipid bilayer that surrounds all cells and regulates what enters and leaves the cell.42
11738799853selectively permeablea property of cell membranes that allows some substances to pass through, while others cannot43
11738802036Phospholipid moleculescompose the membrane structure; have polar phosphate heads (hydrophilic) and lipid non-polar tails (hydrophobic)44
11738803957Phospholipid bilayera two-layered arrangement of phosphate and lipid molecules that form a cell membrane, the hydrophobic lipid ends facing inward and the hydrophilic phosphate ends facing outward.45
11738808527Channel proteinshave a hydrophilic channel that certain molecules or ions can use as a passageway.46
11738811165ion gated channelsproteins responsible for allowing sodium or potassium to diffuse into or out of the axon47
11738814493Aquaporinswater channel proteins that allow water to diffuse from regions of high water to regions of low water.48
11738818120Plasmolysis (plant cells)The pulling away of the cytoplasm and plasma membrane from the cell wall due to lack of water49
11738822309receptor proteinsProteins that transmit information in and out of cells. They allow communication between cells.50
11738825970Cholesterol in membranea lipid embedded in the phospholipid bilayer that helps maintain fluidity of the membrane, especially in cold temperatures.51
11738829208DiffusionMovement of molecules from an area of higher concentration to an area of lower concentration.52
11738830063facilitated diffusion (passive transport)Movement of specific molecules across cell membranes through protein channels without energy (ATP).53
11738834173active transportEnergy-requiring (ATP) process that moves material across a cell membrane against a concentration gradient (from low concentration to high concentration).54
11738842061exocytosisrelease of substances out a cell by the fusion of a vesicle with the membrane.55
11738844349Endocytosis (phagocytosis and pinocytosis)A process in which a cell engulfs extracellular material through an inward folding of its plasma membrane.56
11738848288Receptor-mediated endocytosisThe uptake of specific molecules based on a cell's receptor proteins57
11738854440Glucose transport proteina type of protein molecule that responds to the insulin signal to facilitate glucose uptake from the blood stream into liver cells or skeletal muscle cells.58
11738857343insulinA protein hormone synthesized in the pancreas that regulates blood sugar levels by signaling the cells to uptake of glucose from the blood into the cytoplasm of the cell.59
11738874487Matrix of the Mitochondrialocation of Kreb's cycle in which electron carries like NADH and FADH2 are produced and CO2 waste gas is released, and some ATP is produced.60
11738882121Inner membrane space of the mitochondriais the region between the inner membrane and the outer membrane of a mitochondrion where a proton gradient is produced from the pumping of protons from the matrix into this space so this space tends to have a low pH.61
11738892227B cellsCells manufactured in the bone marrow that create antibodies for isolating and destroying invading bacteria and viruses.62
11738893168T cellsCells created in the thymus that produce substances that attack infected cells in the body.63
11738894507Helper T cellsActivate macrophages, B cells and T cells.64
11738895959Virus structureContains genetic material either DNA or RNA, and a protein coat.65
11738929976osmosisDiffusion of water through a selectively permeable membrane66
11738929977A hypertonic solution surrounding a cellhas a solute concentration greater than that inside the cell whose solution is described as hypotonic; the cell responds with a net flow of water loss.67
11738937889A hypotonic solution surrounding a cellhas a solute concentration less than that inside the cell which is described as hypertonic; the cell responds with a net gain of water, swells.68
11738943198An isotonic solution surrounding a cellis a solution whose solute concentration is equal to the solute concentration inside a cell which is described as isotonic.69
11738952207water potentialThe physical property predicting the direction in which water will flow, governed by solute concentration and applied pressure. Water potential = solute potential + pressure potential.70
11738967545solute potentialThis measurement has a maximum value of 0; it decreases as the concentration of a solute increases.71
11738979064Equation for solute potential-iCRT in which i = the ionization constant C = molar concentration (moles/L) R = pressure constant (0.0831 liter bars/mole K) and K is temperature in Kelvin. T = temperature in degrees kelvin = 273 + C'72
11739011752What is the solute potential Ψs of a 1.0M sugar solution at 22 degrees Celsius under standard atmospheric conditions Ψp=0 ? Round to the nearest tenth.-24.5 Bars73
11739020287A plant cell has a solute potential of -4.0 bars and a pressure potential of 1.0 bar. What is its water potential to the nearest whole number? If this cell is placed in a solution with a water potential of -5.0 bar. What will happen to this cell?-3.0 Bars. If this cell is placed in a solution with a water potential of -5.0 bars, the cell will lose water by net flow and shrink.74

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