Formation of a lipid bilayer is energetically favorable. How does this arrangement result in higher entropy for the system, and thus make bilayer formation energetically favorable?
(a) Polar head groups form a hydrogen-bonding network at the interface with water.
(b) Water molecules form cagelike structures around hydrophobic molecules.
(c) Hydrogen bonds form between neighboring polar head groups in the bilayer.
(d) Fatty acid tails are highly saturated and flexible.
(b)
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a. zinc b. uranium c. iron d. nickel e. carbon
Most carbon dioxide is transported in the blood in the form of bicarbonate
____________________ Indicate whether the statement is true or false.
When the generative cell divides, the daughter cells are sperm cells
____________________ Indicate whether the statement is true or false.
Which of the following is an advantage of bacterial culture in diagnosing an infection?
A. Standardized, selective media can differentiate bacteria based on their ability to grow. B. AH bacteria can be easily evaluated by culture. C. The method is very rapid. D. The method rarely poses risks to laboratory personnel