A nonliving continuum of cells walls and intercellular spaces is
(a) Ground complex
(b) Alburnum
(c) Apoplast
(d) Desmotubule

Options

A. Ground complex
B. Alburnum
C. Apoplast
D. Desmotubule

Answer

To solve the question "A nonliving continuum of cell walls and intercellular spaces is," we need to analyze the options provided:

1. **Understanding the Options**:
- **(a) Ground complex**: This refers to ground tissue in plants, which consists of living cells and is not a non-living continuum.
- **(b) Alburnum**: This is another term for sapwood, which is part of the living xylem tissue involved in the conduction of water and nutrients.
- **(c) Apoplast**: This term refers to the non-living continuum of cell walls and intercellular spaces through which water and solutes can move in plants.
- **(d) Desmotubule**: This is a structure that connects the cytoplasm of adjacent plant cells, facilitating communication, but it is not a continuum of cell walls.

2. **Evaluating Each Option**:
- **Ground complex**: Since it consists of living cells, this option is incorrect.
- **Alburnum**: As it is part of the living xylem, this option is also incorrect.
- **Apoplast**: This option is correct as it describes the non-living spaces in plant tissues that allow for the movement of water and nutrients.
- **Desmotubule**: This is involved in cell communication, not in forming a non-living continuum, making this option incorrect.

3. **Conclusion**:
- The correct answer is **(c) Apoplast**, as it accurately describes a nonliving continuum of cell walls and intercellular spaces in plants.

**Final Answer**: (c) Apoplast

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