Name: Date: 10/14/2013 1. What types of molecules have difficulty crossing the plasma membrane? Explain why. Large polar molecules and
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1. Discuss how to protect yourself from body fluids‚ such as saliva and blood. o Gloves protect you whenever you touch blood‚ body fluids. The use of gloves also decreases the risk of disease transmission if you are pricked with a needle. Always wear gloves for handling items or surfaces soiled with blood or body fluids. o Wash your hands and other skin surfaces immediately after they come in contact with blood or body fluids. o Masks and protective eyewear‚ such as goggles or a face shield
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Resistant starch (RS) is starch and starch degradation products that escape from digestion in the small intestine of healthy individuals.[1] Resistant starch is considered the third type of dietary fiber‚ as it can deliver some of the benefits of insoluble fiber and some of the benefits of soluble fiber. Some carbohydrates‚ such as sugars and most starch‚ are rapidly digested and absorbed as glucose into the body through the small intestine and subsequently used for short-term energy needs or stored
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Mutualism of a Bengal Tiger- A very powerful antibiotic‚ Bacilli is a type of bacteria belonging to the Enterobacteriaceae family. Specifically‚ Pantoea agglomerans of the bacilli family are helpful by producing a broad spectrum antibiotic andrimid. This kills many harmful bacteria that a tiger may ingest from its prey by blocking a critical step in fatty acid biosynthesis. This helps protect the tiger from such dangers like E. coli and samonella poisoning. Parasitism-An example of parasitism is
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Week 13 Review Biomes 1. What is a biome? a. Large area of similarly adapted species 2. How are plants similar and different in the biome of two different locations? a. Plant species vary but plant for is similar 3. How does latitude influence biomes? a. Above 60o N latitude Artic b. Below 60o N latitude 4. How does continental placement influence biomes? a. Coastal areas more moderate temp fluctuations b. Interior areas more extreme temp fluctuations c. Areas behind mountains
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Title : The movement of substances across a semi permeable membrane Objective : To study the movement of substances across a semi permeable membrane Problem statement : What factor influences the diffusion of substances through a semi permeable membrane? Hypothesis : The diffusion of molecules across a semi permeable membrane is based on the size of the molecule Variables: a) Manipulated : Size of solute molecules b) Responding : Colour of solution c) Fixed : Temperature and time
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Molecular formula from empirical formula 1) There is a whole number multiple of the empirical formula in the molecular formula MF – (EF) n Molar mass/ empirical formula mass = n EMPRICIAL FORMULA FROM COMBUSTION DATA 1) In a combustion reaction an organism sample is burned in the presence of oxygen and produces CO2 and H2O as main products. 2) A hydrocarbon is a molecule that contains only carbon and hydrogen 3) Combustion analysis of naphthalene‚ a hydrocarbon used in mothballs
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Cell Structure I. Cell History A. Anton Leewenhock (1600s) - first person to observe cells - in pond water‚ using a homemade microscope B. Robert Hooke (1665) - observed many kinds of animal tissue under a microscope - concludes that all animals are made up of cells C. Schwann (1868) - observed many kinds of animal tissue - concludes that all animals are made up of cells D. Schleiden (1869) - observed many kinds of plant tissue - concludes that all plants are made up of cells E. Cell
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Name: _______________________________________ Date: _________________ Per: _____________ Cells: The Basic Unit of Life Directions: Define the key terms and then complete the following Section Reviews after reading through Sections 5.1 through 5.3. You will complete your answers on a separate sheet of paper and then staple this worksheet on top. Vocabulary Words: Cells Cell Wall Prokaryote Chromosome Cell Theory Nucleus Nuclear Envelope Cytoplasm Cell Membrane Eukaryote
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Exercise 7.3 (training!!!) 1. Find the oxidation numbers of the underlined elements in the following species. (a) (e) (i) (m) (q) (u) (y) 2. SO3 PbSO4 CoCl42CrO42SO32Ca(NO3)2 Co(NH3)43+ VO2+ CaH2 KMnO4 SCl2 N2 NaOH (c) (g) (k) (o) (s) (w) HCO3[Al(OH)4]MnO42NO2FeCl3 KOCl (d) (h) (l) (p) (t) (x) H2S2O7 H2O2 Cr2O72K2SO4 CH4 Pt(CO)4 Which of the following equations represent redox reactions? Specify the species being reduced in each case if applicable. (a) (b) (c) (d) NaI(s) + 2K(s) + 2NH3(g)
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