Which statement best describes a direct result of damage to a phospholipid bilayer?

• A. The cell immediately increases its rate of DNA replication.
• B. The cell produces more ribosomes for protein synthesis.
• C. The cell's mitochondria begin to synthesize more glucose.
• D. The cell loses its ability to regulate the movement of substances in and out.

Answer: (D)

Verified step by step guidance

1. Step 1: Understand the structure and function of the phospholipid bilayer. The phospholipid bilayer is a fundamental component of the cell membrane, consisting of two layers of phospholipids. It acts as a selective barrier, regulating the movement of substances in and out of the cell.
2. Step 2: Analyze the consequences of damage to the phospholipid bilayer. Damage to this structure compromises its ability to maintain selective permeability, leading to uncontrolled movement of substances across the membrane.
3. Step 3: Evaluate the options provided in the question. Consider whether each option directly relates to the function of the phospholipid bilayer. For example, DNA replication, ribosome production, and glucose synthesis are not directly linked to the bilayer's role in regulating substance movement.
4. Step 4: Focus on the correct answer. The statement 'The cell loses its ability to regulate the movement of substances in and out' directly describes the result of damage to the phospholipid bilayer, as this is its primary function.
5. Step 5: Conclude that understanding the role of the phospholipid bilayer is key to identifying the correct answer. Damage to this structure disrupts homeostasis and the cell's ability to control its internal environment.