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Define the following terms:
a. solvation sphere
b. amphipathic
c. micelle
d. hydrophobic effect
e. clathrate
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- Which of the following will happen if perchloric acid is added to a neutral polysaccharide gel? (Select 2 Possible Answers) a. increases gel formation b. decreases gel formation c. increases sol formation d. decreases sol formationRegarding ISOTONIC solutions, which of the following are TRUE? SELECT ALL THAT APPLY A. Water movement between the ICF and EFC is equal B. Solvent concentration inside the cell and outside the cell are equal. C. Solute concentration inside the cell and outside the cell are equal. D. Solute concentraion inside the cell is equal to solvent concentration outside the cell.Identify the movement of water in surrounding medium and intracellular environment, given these hypothetical conditions. a. surrounding medium (7% salt, 93 % water) b. intracellular environment - RBC (25% salt, 75% water) 2. a. surrounding medium (35% salt, 65% water) b. intracellular concentration - RBC ( 2% salt, 98% water)
- Both water and the cytosol of cells are hydrophilic. Select one: a. True b. FalseBoth α-keratin and collagen are examples of fibrous proteins. What is a fibrous protein? In 4-6 sentences, compare and contrast the structures of α-keratin and collagen. A)Will have the greatest absorbance at 280 nm B)Is the most negatively charged at pH7 C)Is the most positively charged at pH7Define the following terms: a. chloride shift b. lipid raft c. caveolae d. simple diffusion e. facilitated diffusion
- How do electroneutral co-transporters depend on the transmembrane potential? Select one: a. They depend on the transmembrane potential to some extent b. They are completely independent of the transmembrane potential c. They very slightly depend on the transmembrane potential d. They strongly depend on the transmembrane potentialPlease order the following types of solute diffusivity from largest to smallest. 1. D pore: Diffusivity of solute in a pore 2.De: Effective diffusivity of solute through a heterogeneous membrane material 3. D AB: Diffusivity of solute in water 4. D mi Diffusivity of solute through a membrane pore relative to the bulk concentrationCalcium is a mineral needed by the body to strengthen the bones and for muscular contraction. If the concentration of calcium inside a cell is 0.3% while that of the surrounding fluid is 0.1%, how can the cell obtain more calcium?