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Multiple Choice
Which part of a phospholipid is attracted to water?
A
Glycerol backbone
B
Fatty acid chain
C
Hydrophobic tail
D
Hydrophilic head
Verified step by step guidance
1
Understand the structure of a phospholipid: A phospholipid consists of a glycerol backbone, two fatty acid chains, and a phosphate group attached to the glycerol.
Identify the hydrophilic and hydrophobic parts: The fatty acid chains are hydrophobic (water-repelling), while the phosphate group is hydrophilic (water-attracting).
Recognize the role of the phosphate group: The phosphate group, often referred to as the 'head' of the phospholipid, is polar and interacts favorably with water molecules.
Differentiate between the head and tail: The hydrophilic head includes the phosphate group and any additional polar groups attached to it, while the hydrophobic tail consists of the fatty acid chains.
Conclude which part is attracted to water: The hydrophilic head of the phospholipid is attracted to water due to its polar nature, allowing it to interact with water molecules.