Pg. 287 #1‚3‚4 1. Describe the structure of a nucleotide. A nucleotide is a sugar molecule that has 3 parts including a simple sugar‚ a phosphate group and a nitrogenous base. Nucleotides join together forming long chains‚ with the phosphate group of nucleotide bonding to the deoxyribose sugar of an adjacent nucleotide. 3. Explain why the structure of a DNA molecule is often described as a zipper. The structure of a DNA molecule is often described as a zipper because it is made of tow chains
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high to low concentration‚ small non-polar particles fit between phospholipids 2. Facilitated Transport (a.k.a facilitated diffusion)- Diffusion‚ uses a channel protein‚ large or charged particles a. Ex: Fructose‚ amino acids 3. Active Transport- Pushing particles from low to high concentration (against the gradient)‚ uses a carrier protein 4. Vesicle Formation or Membrane assisted transport- Compounds enter/exit in vesicles A. Diffusion- any small and not charged particles diffuse (goes down
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I think that this will happen because generally hydrochloric acid causes more damage to things and also it produces more aggressive reactions causing greater effects this I think means that the acid is more likely to effect or disable the proteins in the lipid bi-layer this means that if this happens the membranes selective permeability will be lessened and the restriction of the flow of pigment out of the beetroot will also be lessened so more pigment can and will flow out. I think
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Chapter 1/2 Bio Study Guide Section 1.1-Scientific Method Science- An organized way of gathering and analyzing evidence about the natural world Scientific Method 1. Collecting observations 2. Asking questions 3. Forming a hypothesis 4. Experiment 5. Analyze results and draw conclusions 6. Revise hypothesis Control Group- a group in the experiment that receives no experimental treatment Independent Variable- Variable that you change in the experiment X-axis Dependent
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biophysical measurements of several non-enzymic mesophilic proteins at about -65 °C and reflecting a sharp decrease in protein flexibility as the overall motion of groups of atoms ceases. INTRODUCTION It is now accepted that‚ in general terms‚ enzyme activity is dependent on protein dynamics [1-5]: in other words‚ an enzyme must be flexible to function. A number of biophysical studies [6-12] have shown that the flexibility of mesophilic proteins undergoes a transition at about -65 °C. Below this transition
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Bromelain The pineapple plant contains protein-digesting enzymes called‚ as a group‚ bromelain. In the health world‚ these enzymes are regarded as useful in reducing muscle and tissue inflammation (hence the joint pain and wound-healing possibilities)‚ as well as acting as a digestive aid. In the cooking world‚ on the other hand‚ bromelain is regarded as the enemy of the gelatin dessert. If you use fresh pineapple in gelatin‚ the enzyme eats the protein and the gelatin will not gel—in fact
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Christian Hogdohm Gel Electrophoresis I. Introduction: A typical electrophoresis has five major parts: the electrical current‚ DNA‚ RNA‚ or protein sample‚
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AS Biology Unit 1 page 1 AQA AS Biology Unit 1 Contents Specification Biological Molecules Cells Human Physiology Disease Appendices Chemical bonds Carbohydrates Lipids Proteins Biochemical Tests Enzymes Eukaryotic Cells Prokaryotic Cells Cell Fractionation Microscopy The Cell Membrane Movement across Cell Membranes Exchange The Gas Exchange System Lung Diseases The Heart Coronary Heart Disease The Digestive System Cholera Lifestyle and Disease Defence
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was set but not as firm as cup â»1‚ and cup â»3 with the most tenderizer was not set but had a watery jelly like texture. 4. Does Jell-O contain protein? According to the results in this lab Jell-O must contain protein due to the fact that the meat tenderizer was able to break down the Jell-O much the same as it would break down the proteins in meat. 5. Did the amount of meat tenderizer give different results? The amount of meat tenderizer did give different results‚ cup â»2 with the
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)Lipids 3.)Proteins 4.) Nucleic Acids -On the molecular scale‚ members of three of these classes--- Carbohydrates‚proteins‚ and nucleic acids--- are huge and therefore called Macromolecules. - Architecture of a large biological molecule helps explain how that molecule works. ---------------------------------------------------------------------------------------------------------------------------- Macromolecules are polymers‚ built from monomers - Carbohydrates‚ proteins‚ and nucleic
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