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BIO NMDCAT CELL STRUCTURE & FUNCTION
nmdcat.online July 3, 2026

97. A cell biologist treats a line of animal cells with a low concentration of a detergent that selectively permeabilizes the plasma membrane while leaving internal organelles intact. If the cell is then placed in an environment lacking ATP, the structure that will maintain the overall shape of the cell carcass is the

A. Extracellular cell wall matrix
B. Insoluble network of the cytoskeleton (intermediate filaments and nuclear lamina)
✓
C. Matrix of fluid cytoplasmic lipids
D. Highly turgid central vacuole system

📝 Explanation

The cytoskeletal core forms an internal structural framework that preserves the basic architecture of the cell even when the outer membrane is disrupted.

📖 Additional Information

  • Extracellular cell wall matrix
  • Insoluble network of the cytoskeleton (intermediate filaments and nuclear lamina)
  • Matrix of fluid cytoplasmic lipids
  • Highly turgid central vacuole system

The cytoskeletal core forms an internal structural framework that preserves the basic architecture of the cell even when the outer membrane is disrupted.

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