THE CELL
STRUCTURE AND FUNCTION OF THE CELL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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bilayer; fatty acids pointing toward each other
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bilayer; fatty acids facing outward
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single layer; fatty acids facing the interior of the cell
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single layer; phosphorus-containing region facing the interior of the cell
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Detailed explanation-1: -The phospholipids in the plasma membrane are arranged in two layers, called a phospholipid bilayer, with a hydrophobic, or water-hating, interior and a hydrophilic, or water-loving, exterior. Each phospholipid molecule has a head and two tails.
Detailed explanation-2: -A Phospholipid Bilayer The phospholipids in the plasma membrane are arranged in two layers, called aphospholipid bilayer. As shown in Figure below, each phospholipid molecule has a head and two tails. The head “loves” water (hydrophilic) and the tails “hate” water (hydrophobic).
Detailed explanation-3: -Because their fatty acid tails are poorly soluble in water, phospholipids spontaneously form bilayers in aqueous solutions, with the hydrophobic tails buried in the interior of the membrane and the polar head groups exposed on both sides, in contact with water (Figure 2.45).
Detailed explanation-4: -Answer and Explanation: This is true. In a biological cell membrane, the phospholipids will be arranged with the fatty acid tails facing toward the interior of the membrane.