alleryStart learning →Which polysaccharide is the major organic molecule of the plant cell wall?
APeptidoglycan built of sugars
BChitin built of amino sugars
CCellulose built of glucose units
DCollagen built of amino acids
Answer & Solution
Correct answer: C. Cellulose built of glucose units
1. The plant cell wall is a rigid covering outside the plasma membrane.
2. Its major organic molecule is cellulose, a polysaccharide made up of glucose units.
3. Peptidoglycan is the chief component of prokaryotic walls instead.
4. Tearing those rigid cellulose walls is what makes a raw vegetable crunch.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 4 "Cell Structure", section 4.3 Eukaryotic Cells_
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