None Choose the true statements about amyloid fibrils.Proteins that convert to an amyloid structure form soluble fibrils.Amyloid fibrils have a high amount of α-helical structure.Nucleation of amyloid structure may be triggered when two ß-sheet regions from two partially folded proteinsassociate.Proteins that form amyloid fibrils are normally soluble.Some amyloid fibrils are formed from proteolytic fragments that self-assemble into extended ẞ-sheet structures.

Nucleation of amyloid structure may be triggered when two β-sheet regions from two partially folded…

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Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter16: Reaction Rates

Section: Chapter Questions

Problem 2STP

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Account for these facts: (a) Although ethanol (C2H5OH) (bp, 80 C) has a higher molar mass than water (bp, 100 C), the alcohol has a lower boiling point. (b) Mixing 50 mL of ethanol with 50 mL of water produces a solution with a volume slightly less than 100 mL.
Provide an example of a molecule in which a covalent bond does NOT share electrons equally. How does this bond impact the ability of the molecule to dissolve in water? Explain your answer. A researcher designs two lipid bilayers. The first sample contains a bilayer with lipids that have 14 Carbons while the other sample contains a bilayer with lipids that have 8 Carbons. Given these two designs, which bilayer sample would allow the most movement across the bilayer? Explain your answer.
The terms nonpolar and polar as well as hydrophilic andhydrophobic can also be used to describe molecules. Howare these terms related to lipid-soluble and non-lipid-soluble?
Table of Physical Constant Substance Molecular Weight (g/mol) Density g/mL Melting point and Boiling point 0C Solubility Benzoic Acid Cellulose Caffeine
Which of the following is not reduced when Benedict’s solution is boiled? Maltose Fructose Sucrose Lactose
A state of dynamic equilibrium exists between the solid sucrose (table sugar) molecules, C12H22O11, and sucrose molecules dissolved in aqueous solution for a saturated sucrose solution. a. Write the equation to represent the dynamic equilibrium. b. What change occurs in the concentration of dissolved sucrose if more solid sucrose is added to the saturated system? Explain. c. If water is added to the saturated solution and the equilibrium is reestablished, what change occurs to the amount (moles) of dissolved sucrose? Explain. d. If water is added to the saturated solution and the equilibrium is reestablished, what change occurs in the concentration (molarity) of dissolved sucrose? Explain.
Ascorbic acid has a chemical formula of C6H8O6 and is water soluble. A solution containing 80.5 g of ascorbic acid is dissolved in 210g of water. The resulting solution has a density of 1.22g/mL at 55°C. Calculate the mass percentage of the ascorbic acid in the solution.
Which statements accurately describe soap? Select one or more: Soaps are a mixture of fatty acid salts and glycerol. Soaps react with ions in hard water to create a precipitate. Soaps should be weakly alkaline in solution. aps work in solutions of any pH. Soaps are both hydrophobic and hydrophilic.
Explain why concentration of sucrose should not be too high or too low in syrups?
Food chemistry
4. What is the ThOD of a solution containing 130 mg/L sucrose (C₁2H22O11)? C12H22O11 + 12 O₂ → 12 CO₂ + 11 H₂O
When 1.54 of a certain molecular compound X are dissolved in 55. g of benzonitrile (c,H,CN), the freezing point of the solution is measured to be - 17.8 °C. Calculate the molar mass of x. If you need any additional information on benzonitrile, use only what you find in the ALEKS Data resource. Also, be sure your answer has a unit symbol, and is rounded to the correct number of significant digits. x10

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