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Biology

Biology · Cell Structure and Function

Work through this past-paper style MCQ, then read the full explanation. Practice more biology questions on mMCQ with adaptive practice and topic analytics.

Question

The cementing material between adjacent plant cells. 

Options
  • A

    Cellulose 

  • B

    Hemicellulose 

  • C

    Middle lamella 

  • D

    All of the above 

Explanation

Option C is correct since the middle lamella is the layer of material between adjacent plant cells. It cements the cells together and contains pectins, which are also used as gelling agents in food.

Cellulose is a polysaccharide that forms the main component of the plant cell wall, providing structural support but is not the cementing material between cells.

Hemicellulose is a complex carbohydrate that, while it plays a role in cell wall structure, does not serve as the primary cementing agent between adjacent plant cells.

The middle lamella is a pectin-rich layer that acts as the 'glue' between adjacent plant cells, providing adhesion and stability to plant tissues.

This option is incorrect because while cellulose and hemicellulose contribute to the cell wall structure, they do not serve the specific function of cementing adjacent cells together.

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Tagged under Biology · Cell Structure and Function