Question

Which of the following is present in animal cells

• A. Cell membrane
• B. Cell wall
• C. Extracellular matrix
• D. All of the above

Answer 1

Answer: (A), (C)

Extracellular matrix

All cell boundaries are defined by plasma membrane and so are animal cells. Although not encased in cell walls, animal cells in tissues are closely associated with an extracellular matrix composed of proteins and polysaccharides. The extracellular matrix not only provides structural support to cells and tissues.