ORGANIC CHEMISTRY (LL)-W/MOD.MASTERING.
8th Edition
ISBN: 9780134466712
Author: Bruice
Publisher: PEARSON
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Question
Chapter 25.5, Problem 8P
Interpretation Introduction
Interpretation:
The way in which the bacteria regain their original fluidity has to be given.
Concept Introduction:
Phosphoglycerides form membranes by arranging themselves in a lipid bilayer.
The polar heads of the phosphoglycerides are on both surfaces of the bilayer and fatty acids form the interior of the bilayer.
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A colony of bacteria accustomed to an environment with a temperature of 25 °C was moved to an identical environment, except that its temperature was 35 °C. The higher temperature increased the fluidity of the bacterial membranes. How can the bacteria regain their original membrane fluidity?
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You are given 150 mL of an oil made up of a mixture of 3 fatty acids:
palmitoleic acid (C 16:1 (n-7))
erucic acid (C 22:1 (n-9))
stearidonic acid (C 18:4 (n-3))
You know that the 150 mL sample of this oil was prepared by adding 60 mL of palmitoleic acid to 90 mL of a mixture of erucic acid and stearidonic acid.
Using a hydrometer you carefully measure the density of the 150 mL sample of oil and your analysis indicates that it has a density of 0.900 g/cm3.
The densities of the individual fatty acids are:
palmitoleic acid = 0.894 g/cm3
erucic acid = 0.860 g/cm3
stearidonic acid = 0.9334 g/cm3
Can you determine the volumes (in mL) of erucic acid and stearidonic acid in the total volume (150 mL) of the oil mixture?
Chapter 25 Solutions
ORGANIC CHEMISTRY (LL)-W/MOD.MASTERING.
Ch. 25.1 - Prob. 1PCh. 25.3 - Which has a higher melting point, glyceryl...Ch. 25.3 - Draw the structure of an optically inactive fat...Ch. 25.3 - Draw the structure of an optically active fat...Ch. 25.5 - Do the identities of R1 and R2 in phosphatidic...Ch. 25.5 - Membranes contain proteins, Integral membrane...Ch. 25.5 - Prob. 8PCh. 25.5 - The membrane phospholipids in deer have a higher...Ch. 25.6 - Treating PGC2 with a strong base such as sodium...Ch. 25.7 - Mark off the isoprene units in menthol, -selinene,...
Ch. 25.7 - Prob. 13PCh. 25.7 - Prob. 14PCh. 25.8 - Propose mechanisms for the Claisen condensation...Ch. 25.8 - Prob. 16PCh. 25.8 - Propose a mechanism for the conversion of...Ch. 25.8 - Propose a mechanism for the biosynthesis of...Ch. 25.8 - Propose a mechanism for the conversion of the E...Ch. 25.8 - The fluoro-substitued geranyl pyrophosphate shown...Ch. 25.8 - Prob. 22PCh. 25.8 - Prob. 23PCh. 25.9 - Draw the individual 1,2-hydride and 1,2-methyl...Ch. 25.10 - Prob. 26PCh. 25.10 - Prob. 27PCh. 25.10 - The acid component of a cholesterol ester is a...Ch. 25.10 - Prob. 29PCh. 25.10 - Prob. 30PCh. 25 - Prob. 31PCh. 25 - An optically active fat, when completely...Ch. 25 - Prob. 33PCh. 25 - a. How many different triacylglycerols are there...Ch. 25 - Cardiolipins are found in heart muscles. Draw the...Ch. 25 - Nutmeg contains a simple, fully saturated...Ch. 25 - Draw the product that is obtained from the...Ch. 25 - Prob. 39PCh. 25 - Prob. 40PCh. 25 - Propose a mechanism for the biosynthesis of...Ch. 25 - 5-Androstene-3.17-dione is isomerized to...Ch. 25 - Prob. 44PCh. 25 - Eudesmol is a sesquiterpene found in eucalyptus....Ch. 25 - Prob. 46PCh. 25 - Prob. 47PCh. 25 - Diethylstilbestrol (DES) was given to pregnant...
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- consider a 4% starch solution and a 10% starch solution separated by a semipermeable membrane. Which of the following occurs in this system? A. There is a net flow of water from the 4% starch solution into the 10% starch solution. B. There is a net flow of water from the 10% starch solution into the 4% starch solution. C. Water does not cross the membrane at all. D. Water flows equally in both directions. E. Starch moves out of the 10% starch solution into the 4% starch solutionarrow_forwardWhich of the following statements are applicable and which aren’t? A. Diffusion of a solute through a membrane is considerably quicker than diffusion of the same solute through a water layer of equal thickness. b. A single ion, such as K+, can diffuse through more than one type of channel. c. Lipid-soluble solutes diffuse more readily through the phospholipid bilayer of a plasma membrane than do water-soluble ones. d. The rate of facilitated diffusion of a solute is limited by the number of transporters in the membrane at any given time. e. A common example of co-transport is that of an ion and an organic molecule.arrow_forwardHow many grams of sucrose (C12H22O11) would you need for a 2L of a 2M solution?arrow_forward
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