Which of these statements is/are true ?
(i) The surface area avaiable for cellular function in a prokaryotic cell is less than that in a eukaryotic cell.
(ii) The total genome size of a prokayotic cell is always less than that of a eukaryotic cell.
(iii) Unlike eukaryotes, no special respiratory respiratory organelles are found in prokaryotes. Hence they respire at a much lesser rate than eukaryotes.
(iv) Eukaryotic cells show various membrane bound organelles such as chloroplasts and nucles while ribosomes are the only membrane bound organelles found is prokaryotes.

Options

A. (i) and (ii)
B. (iv) only
C. (iii) only
D. (i), (ii) and (iv)

Explanation

To determine which statements are true regarding prokaryotic and eukaryotic cells, let's analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement (i)**: "The surface area available for cellular function in a prokaryotic cell is less than that in a eukaryotic cell."
- **Analysis**: Prokaryotic cells are generally simpler and smaller than eukaryotic cells, which have more complex structures and numerous membrane-bound organelles. Therefore, the surface area available for cellular functions in prokaryotic cells is indeed less than that in eukaryotic cells.
- **Conclusion**: This statement is **True**.

2. **Statement (ii)**: "The total genome size of a prokaryotic cell is always less than that of a eukaryotic cell."
- **Analysis**: Prokaryotic cells typically have smaller genomes compared to eukaryotic cells. For example, bacteria (which are prokaryotes) have much less genetic material than eukaryotic organisms, which have larger and more complex genomes.
- **Conclusion**: This statement is **True**.

3. **Statement (iii)**: "Unlike eukaryotes, no special respiratory organelles are found in prokaryotes. Hence they respire at a much lesser rate than eukaryotes."
- **Analysis**: While it is true that prokaryotes do not have specialized organelles for respiration like mitochondria, they still possess the necessary enzymes for respiration located in their cell membrane. Additionally, the respiration rate in prokaryotes can be comparable to that of eukaryotes, depending on the conditions.
- **Conclusion**: This statement is **False**.

4. **Statement (iv)**: "Eukaryotic cells show various membrane-bound organelles such as chloroplasts and nucleus while ribosomes are the only membrane-bound organelles found in prokaryotes."
- **Analysis**: Eukaryotic cells do have various membrane-bound organelles, including chloroplasts and a nucleus. However, ribosomes are not membrane-bound organelles; they are free-floating in the cytoplasm or attached to the endoplasmic reticulum in eukaryotes and are found in prokaryotes as well. Prokaryotes do not have any membrane-bound organelles.
- **Conclusion**: This statement is **False**.

### Final Summary:
- **True Statements**: (i) and (ii)
- **False Statements**: (iii) and (iv)