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Bio Exam 2 Ch.3-4 Flashcards

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3924907102Robert HookeSaw "little boxes" Aka cells. (Microgrania)0
3924921008Anton Van LeeuwenhoekSaw the cells but he named them Animalcules.1
3924932657Robert BrownSaw "Circular objects" aka nucleus2
3924945676Schleiden & Schwann1st cell theory: "All organisms are composed of cells basis of life."3
3924986315Rudolf VichowHe added on to the cell theory; "Cells come from other Cells"4
3925007122UnicelluarSmallest of all organisms, composed of one cell.5
3925027539MulticellularLarger organisms, composed of many cells.6
3925041492Microscopesmagnify objects too small to see with the naked eye7
3925055267Magnification# of times larger the object appears than the object actually is.8
3925063989Resolutionclarity of the image9
3925079330Scanning Electron Microscope (SEM)Uses electrons to show a 3-D view of the SURFACE of an object.10
3925092958Transmission Electron Microscope (TEM)Uses electrons to show INTERIOR images.11
3925105545Atomic Force Microscope (AFM)interaction between the sample & the tip of a scanning probe creates an image (allows individual atoms to be seen)12
39253352462 types of cellsProkaryotes & Eukaryotes13
3925348186Prokaryotes- Cell size: (smallest, unicellular) - NO well-defined nucleus - Cell Components; 1. Cell Wall: layer protection and shape, (Capsule or slimy layer) 2. Cell Membrane: a phospholipid bilayer 3. Cytoplasm: Fluid of the cell (Exam for sure) 4. Nucleoid Region: Holds genetic info 5. Flagella: for movement 6. Plants DON'T have ORGANELLES except, Ribosomes; small particles composed of protein and RNA. (Exam)14
3925455094Eukaryotes- Cell size: (Large) - TRUE nucleus15
3925493335Animal CellNo Center Vacuole or Chloroplast16
3925497972Plant CellNo Centriole17
3925570877Manufacturing (makes)1. Nucleus 2. Nucleolus- Making ribosomal subnits (exam) 3. Ribosomes 4. Rough ER 5. Smooth ER 6. Golgi Appataus18
3926193998Breakdown1. Lysosomes 2. Vacuoles 3. Peroxisomes19
3926240960Energy Processing (Which two organells are tide to energy?)1. Mitochondria (chemical NRG of food TO chemical NRG of ATP) 2. Chloroplasts (light to sugar)20
3926284498Support, movement, and communication1. Cytoskeleton 2. Cilia and Flagella 3. Cell Wall21
3926295611Plant Cell Wallmade up cellulose (lots of sugar)22
3926302495PlasmodesmataChannels between adjacent cells that allows passing of nutrients.23
3926326099Tight Junction"zipper-like" prevents substance from passing between cells.24
3926344207Anchoring (adhering) Junctionadjacent cells are held together by filaments to create strong sheets.25
3926355674Gap (communication) Junctionallows small molecules to pass between cells26
3926375121Energycapacity to perform work. **required by all living organisms.27
39263851872 types of EnergyKinetic and Potential28
3926389221KineticNRG that is actually doing work. (push,pull,moving)29
3926396501PotentialNRG stored (stop, paused, not moving)30
3926409342Thermodynamicsstudy of NRG relationship or transformation (changing)31
39264206182 Laws of Thermodynamics1. NRG can change but can not be CREATED or DESTROYED. (Name; Law of Energy conversion) 2. NRG tranfromation are INEFFICIENT due to reaction losing some NRG as heat.32
3926691493Chemical ReactionsIt begins with one set of substance, called Reaction and converts them into another set called the Products.33
3926718127Exergonic (exit)if the reactants have more NRG than the Product (ex: Respiration)34
3926744036Endergonic (take in)if the Products have more NRG than the reactant (ex: photosynthesis)35
3926763014Electronscan carry NRG36
3926781008Oxidationlose of electrons from a molecule, atom, or ion. aka exergonic37
3926797852Reductiongain of electrons. aka endergonic38
3926811063LEO the lion goes GERLEO- Loss of Electrons Oxidation GER-Gain of Electrons Reductions39
3926840963ATP to ADPthis happens thanks to the last phosphate that breaks off.40
3949917261ATPadenosine triphosphate41
3949921761ADPadenosine diphosphate42
3949932660Enzymesspeed up the cell's chemical reactions without being consumed. Doesn't add NRG nut speeds up a reaction by lowering the Energy of Activation (EA) barrier. - They are made up of protein (Tertiary) - ase' hint for enzymes43
3949954360Enzymes's Subtratea REACTANT in chemical reaction. (specific active sites)44
3949968504CoFactors-Not proteins (inorganic) -Ex: Zine & Iron -Help with chemical Reactions -Not Consumed45
3949972462CoEnzymes- Organic - Vitamins - Ex: B12 & Carbon46
3949981107Enzyme Inhibitors (stoppers)Chemical that interfere with an enzymes Activity.47
39499866962 types of Enzyme Inhibitors1. Competitive Inhibitors 2. Non-Competitive Inhibitors48
3949986717Competitive InhibitorsResembles the normal substrates and competes with the substrates for a spot on the enzyme's active site.49
3949989664Non-Competitive Inhibitorsdoesn't enter the active site, but blinds somewhere else and causes a change in the active site shape.50
3949999542Selectively Permeable Membranesomethings can go in and out the cell but some can't51
3950009381Some solutes are ________ inside than ______ some are _______.Higher, Outside, Lower52
3950016189Different way of transporting across the Membrane1. Passive transport 2. Active Transport 3. Use of Vesicles53
3950025129Passive Transportmoves across membrane without using NRG.54
39500273183 ways of Passive Transport:1. Simple diffusion 2. Osmosis 3. Facilitated diffusion55
3950047596Simple Diffusionwhen chemicals move from a higher concentration to a lower concentration until they are equal. - no proteins are involved56
3950059815OsmosisThe movement of water57
39500634243 ways of Osmosisa. Hypertonic b. Hypotonic c. Isotonic58
3950069014Hypertonicthe solution has a HIGHER concentration of solutes.59
3950073371Hypotonicthe solution that has a LOWER concentration of solutes.60
3950079251Isotonicthe solution is EQUAL (homeostasis)61
3950086901Animal cellnormal, lysing (pop), or shriveled (shrink)62
3950091512Plant cellFlaccid , turgid, shriveled63
3950099172Facilitated diffusionproteins required, no NRG, Pores in proteins help, aquaporins - more water to move.64
3950108833Active TransportTransport protein helps to move substances against its concentration gradient. (Sodium-Potassium Pumps & Hydrogen (H+) Pumps) Low Concentration to High Concentration, Requires NRG. ATP65
3949983687Use of VesiclesExocystosis vs Endocytosis66
3974455467Exocystosiscell gets rid of bulky materials67
3974459486Endocytosiscell takes in material68
39744642613 kind of Endocytosis1. Phagocytosis 2. Pinocytosis 3.Receptor69
3974473657PhagocytosisCellular eating (soild)70
3974478080PinocytosisCellular drinking (liquid)71
3974491951Receptormediated- more specific72

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