Which of the following statements is true for a eukaryotic cell?

• A. It contains membrane-bound organelles such as the nucleus.
• B. It lacks ribosomes for protein synthesis.
• C. Its DNA is located in the nucleoid region.
• D. It always has a cell wall made of peptidoglycan.

Answer: (A)

Verified step by step guidance

1. Step 1: Understand the characteristics of eukaryotic cells. Eukaryotic cells are defined by the presence of membrane-bound organelles, including the nucleus, mitochondria, and others. This is a key feature that distinguishes them from prokaryotic cells.
2. Step 2: Analyze the first statement: 'It contains membrane-bound organelles such as the nucleus.' This is true for eukaryotic cells, as the nucleus is a defining feature where the DNA is stored.
3. Step 3: Evaluate the second statement: 'It lacks ribosomes for protein synthesis.' This is false because eukaryotic cells have ribosomes, which are essential for protein synthesis. Ribosomes are not membrane-bound organelles, but they are present in both eukaryotic and prokaryotic cells.
4. Step 4: Examine the third statement: 'Its DNA is located in the nucleoid region.' This is incorrect because the nucleoid region is characteristic of prokaryotic cells. In eukaryotic cells, DNA is stored within the nucleus.
5. Step 5: Assess the fourth statement: 'It always has a cell wall made of peptidoglycan.' This is false because eukaryotic cells do not have cell walls made of peptidoglycan. Peptidoglycan is found in the cell walls of prokaryotic cells, specifically bacteria. Eukaryotic cells may have cell walls (e.g., in plants and fungi), but their composition differs (cellulose in plants, chitin in fungi).