Midterm #2 Study Guide
Midterm #2 Study Guide Bio 150
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This 4 page Study Guide was uploaded by Alexa Wilson on Thursday March 12, 2015. The Study Guide belongs to Bio 150 at San Francisco State University taught by John Blair in Spring2015. Since its upload, it has received 347 views. For similar materials see The World of Plants in Biology at San Francisco State University.
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Date Created: 03/12/15
Midterm 2 Study Guide Leaves 1 Func ons a photosynthetic organs b respiration occurs here c waste disposal d water sink transpiration 2 Structure a epidermis i cuticle ii guard cellsstomata 1 usually on the underside iii leaf hairs b mesophyll i palisade layer H spongylayer c vascular bundles i veins xylem and phloem 3 Modified leaves bracts leaves under an inflorescence cluster of small flowers spines tendrils window leaves flowers are just a series of modified leaves arid habitats L reducedleaves ii thick cuticle iii sunken stomata h epiphyllis bud on leaf i carnivorous plants i nitrogen poor habitats boggy ii types 1 pitcher plants 2 venus fly trap 3 sundews 4 bladdenNorts Flquot FDPPP39P Stems 1 Young dicot cross section from outside to inside a epidermis b cortex parenchyma cells c vascular bundles equidistant from epidermis i fiber bundle cap ii phloem iii xylem d pith parenchyma cells in center 2 Monocot stem cross section a scattered vascular bundles i no cortex or pith ii parenchyma cells in ground tissue b no vascular cambium i no secondary xylem wood 3 Specialized stems a tuber i underground ii food storage starchy iii example potato b stoon i lateral stem ii example runner c rhizome i underground stem d tendrils e cladophyll i leaf like stem ii often photosynthetic iii thorns Biochemistry 1 Atoms a 3partices i protons positive ii neutrons neutral iii electrons negative b elements i names based on number of protons atomic number c isotopes i more or fewer neutrons than protons ii stable isotope iii radioactive isotope 1 decay at a half life 2 uses a kill cells b date materials i example cesium clock ii C14 for wood bone etc 3 energyweapon 4 tracing d ion i more or fewer electrons than protons 1 changes the charge 2 ionization occurs in solution water 2 Bonds a covalent i strongest kind ii sharing of valence electrons iii double and triple bonds exist b ionic i equal and opposite electrical charges ii bonds break in solution c hydrogen bonds i weakest kind ii weak electrical charge in polar molecules 3 Acids vs Bases a pH scale i neutrala7 ii acidic alt7 iii basicalkaline agt7 b some bases and acids make salt c buffers i keep cell or stomach pH balanced 4 Macromolecules a carbohydrates i monomers monosaccharides 1 ratio CHOgt121 2 example glucose C6 H12 O6 ii oligosaccharides and polysaccharides 1 examples sucrose sucralose lactose cellulose chitin starch glycogen Flquot FDPPP39P b lipids i fats oils some waxes sterols cholesterol ii many have a hydrophilic tolerates water end and a hydrophobic repels water end iii triglycerides 1 glycerol and 3 fatty acid chains 2 essential fatty acids humans cannot synthesize 3 saturated a solid at 22 degrees b animal products ie butter c every Carbon has 2 Hydrogen 4 unsaturated a liquid at 22 degrees b plant product ie olive oil c some Carbons have only 1 Hydrogen iv transfats 1 unsaturated fats converted to solid fats c phospholipids i cell membranes d nucleic acid
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