Cell Wall · Botany

Where is cellulose synthesized for the plant cell wall?

  1. At the plasma membrane by cellulose synthase complexes
  2. Inside the nucleolus during ribosomal subunit assembly
  3. Within the mitochondrial matrix during cellular respiration
  4. On free ribosomes in the cytoplasm as finished strands
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Correct answer: At the plasma membrane by cellulose synthase complexes

Cellulose is synthesized at the plasma membrane by cellulose synthase complexes. The cellulose chains are extruded outward and assemble into microfibrils in the wall.

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