Based on the descriptions provided, the appropriate biomolecule names are:
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For "it consists of a linear chain of several glucose molecules": Starch or Cellulose (though cellulose is more commonly known for its structure).
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For "it forms the cell wall of plant cells": Cellulose.
So the correct placement would be:
- Linear chain of glucose: Starch (more often) or Cellulose (if you're emphasizing its structure).
- Cell wall of plant cells: Cellulose.
If you need to choose only one answer for the linear chain which is more related to energy storage, then Starch is the ideal choice.