The steroid lipid cholesterol is a component of membranes. Identify true statements about cholesterol and its role in membrane fluidity. (mark all that apply) O Cholesterol increases membrane fluidity in a membrane that otherwise contains mostly long-chain saturated fatty acids cholesterol stiffens, decreases membrane fluidity, for membranes in the more fluid, liquid crystal state O the entire cholesterol lipid is buried deep in the middle of the lipid bilayer, disrupting the regularity of its structure. O cholesterol fits awkwardly within the lipid bilayer, increasing its melting temperature O cholesterol disrupts the regularity of the membrane structure without affecting the Tm

Q: An branched structure of the polysaccharide molecule will decrease the hydrodynamic volume which…

A:

Q: Your chemist friend, Laqueefa Farthing, has isolated an unknown compound that shows an observed…

A: Intermolecular forces are the forces of attraction or repulsion which act between neighboring…

Q: Which term refers to the the diffusion of water molecules through a selectively permeable…

A: There is always movement of molecule from the higher to lower concentration.

Q: 2. When sucrose dissolves in water, the resulting solution has a higher surface tension than pure…

A: Given, sucrose is dissolved in water the resulting solution has a higher surface tension than pure…

Q: 39. Which of the following compounds is expected to be H20 soluble? IV А) I B) II С) I D) IV 40.…

A:

Q: How many grams of sucrose (C12H22O11) are in 1.20L of a 0.713M sucrose solution?

A: The molarity of the solution is calculated by using the following expression. Now observing the…

Q: Which term refers to the the diffusion of water molecules through a selectively permeable…

A: Osmosis - In osmosis there is diffusion of water molecules from high concentration region to low…

Q: The term which describes the pressure exerted by a vertical column of water, based on the distance…

A: 2nd option is correct that is hydrostatic head

Q: Which of the following DOES NOT define a gel?   a. it is in a semi-solid state   b. it entraps…

A: Gel Semi-solid colloid in a more solid form than a sol broadly .    a.  it is in a semi-solid state…

Q: For items 15-16: The osmotic pressure of an aqueous solution of a certain protein was measured to…

A: The osmotic pressure of a solution can be expressed as: Π = icRT where, i = van't hoff factor c =…

Q: Define the term Osmatic pressure?

A: Osmotic pressure is a colligative property. The properties of dilute solutions which depend only on…

Q: What is the underlying process involved in dialysis?

A: Dialysis is redistribution of  of solvent/solute which occurs at an unequal rates of diffusion…

Q: 2. For each of the vitamins above, classify it as water-soluble or fat-soluble. Give your reasoning…

A: Vitamins are a class of organic compounds which are needed in small quantities for sustaining life…

Q: At an air-water interface, fatty acids such as oleic acid liein a one-molecule-thick layer…

A: First the moles of oleic acid is calculated as shown below,

Q: HW 8 #20

A: Mixing is the process when we mix two different molecules. Since here initially and finally we have…

Q: 7.0.00550 g of a highly purified protein was dissolved in 25.0 mL of water. At 50.0 solution…

A: The expression of molarity and further number of moles of solute can be substituted in the…

Q: In dialysis, large molecules are allowed to diffuse through a semi-permeable membrane. O True O…

A: In dialysis, a chamber is used which has semi permeable membrane.

Q: An v branched structure of the polysaccharide molecule will decrease the hydrodynamic volume which…

A: 1) branched . 2) more

Q: 2.Boils at temperature higher than the boiling point of pure solvent A.Vapor Pressure B. Boiling…

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Q: consider a 4% starch solution and a 10% starch solution separated by a semipermeable membrane. Which…

A: Osmosis: The movement of water molecules from a higher water potential to a region of lower…

Q: 2Lwhat is the molar concess tration bydragenion. in salutian af pH Jalue-

A: Given  PH   = 4  [H+]  = ?

Q: 20. Which term best describes the process illustrated here? Semi- permeable membrane Molecule A time…

A: Since the molecules of B is being filtered out from the mixture of A and B in the process. And  1)…

Q: Given that blood cell membranes are known to be permeable to water, indicate whether the statement…

A: As water always move from higher water potential to lower water potential .  So if osmotic pressure…

Q: Ether and water are two liquids that are insoluble in each other. These liquids are termed:   a.…

A: Ether and water cannot mix with each other. Ether floats on water

Q: Among the following samples of water, which contains the highes K carbonate hardness? O oxygenated…

A: Given in following question  which water highest carbonate hardness

Q: if the extracellular fluid outside the cell has a higher molarity that the cells cytoplasm inside…

A: In the question it is not instructed to what to do.I am rectifying the false statement of the…

Q: why methanol is soluble in water, but insoluble in hexane specifically using Intermolecular forces…

A: Intermolecular forces are the weak forces of attraction present between two molecules which may be…

Q: A protein subunit from an enzyme is part of a research study and needs to be characterized. A total…

A: Given data is as follows: The mass protein = 0.175 g The volume of solution = 2.00 mL = 0.002 L The…

Q: Arrange the following according to decreasing rate of diffusion across the membrane: Water Oxygen…

A:

Q: Choose true or false. The membrane mosaic is colloidal solution as the lipids and proteins are able…

A: The fluid mosaic model of the cell membrane is how scientists describe what the cell membrane looks…

Q: Select the true statement for capillaries that supply metabolically active tissues. O Carbonic…

A:

Q: Identify the net filtration pressure in a capillary under the following conditions. blood…

A: Colligative properties are dependent on the number of moles of solute in the solution. There are…

Q: The structures of vitamins E and B6 are shown below. Predictwhich is more water soluble and which is…

A: The molecule which which is having less length of carbon chain and more of the non carbon atoms like…

Q: What is the osmotic pressure of a 4.5 FL OZ solution containing 30.6 g of fructose (C6H12O6) at 40…

A: osmotic pressure is defined as a pressure at which inward flow of liquid through semipermeable…

Q: Consider water and glycerol, CH21OH2CH1OH2CH2OH. (a) Would you expect them to be miscible in all…

A: Miscibility is the property of two substances to mix or dissolve each other completely. Miscible…

Q: For items 15-16: The osmotic pressure of an aqueous solution of a certain protein was measured to…

A: Given: Osmotic pressure = 1.54 torr T = 25oC

Q: What is the molar mass?

A: Given, Mass of carbohydrate  = 6.85g. Mass of water = 100.0g. Density = 1.024g/mL. Osmotic pressure…

Q: What is a semipermeable membrane?

A: To explain what is a semipermeable membrane.

Q: What are the answers for these questions? 2.Why are there bubbles escaping from the open end of the…

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: Include the following terms: • solute, intracellular fluid, extracellular fluid, simple diffusion,…

A:

Q: hich of the following statements is not accurate when considering water and biological molecules? O…

A: The hydrogen bond is an attractive interaction between a hydrogen atom and an electronegative atom .…

Q: Which aspect of the structure of DNA makes it soluble in water? What are the predominant…

A: All matter can be classified as solid, liquid, and gases mainly. In these physical states of matter,…

Q: Which of the following statements is correct about the formation of emulsion? O Soaps and detergents…

A: Answer  Which statement is correct about the formation of emulsion…

Q: Calculate the new freezing point of a solution containing 5.27 g of sucrose (C12H22011) and 45 g of…

A:

Q: A FACILITATED transport process is a form of ______________ transport, where an important chemical…

A:

Q: Calculate the new freezing point of a solution containing 5.27 g of sucrose (C12H22011) and 45 g of…

A: Given data: Mass of sucrose = 5.27 g Mass of water = 45 g Standard data: The molar mass of…

Q: The dispersed phase of a colloid can be a a. gas b. liquid c. solid d. more than one choice is…

A: We have to tell which option is correct

Q: e amount of urea in ppm [parts per million] pre ntaining 55 % by mass of solvent is

A: Given: Concentration of solution = 55% by mass of solvent To Calculate: Amount of urea in ppm

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.