Which is true about eukaryotes?
Their cells do not have any DNA.
Their cells have plasmids.
Their cells are generally smaller than those of prokaryotes.
Their cells have membrane-bound organelles.
The correct statement about eukaryotes is that their cells have membrane-bound organelles. To understand why this statement is true, let's break down the options:
1. "Their cells do not have any DNA."
- This statement is not true. Eukaryotic cells definitely contain DNA, which is organized into structures called chromosomes and located within the nucleus of the cell.
2. "Their cells have plasmids."
- Plasmids are small, circular DNA molecules that are found in some bacteria and archaea, but not in eukaryotic cells. So, this statement is not true for eukaryotes.
3. "Their cells are generally smaller than those of prokaryotes."
- This statement is not true. Prokaryotic cells, which include bacteria and archaea, are generally smaller than eukaryotic cells. Eukaryotic cells are typically larger and more complex.
4. "Their cells have membrane-bound organelles."
- This statement is true for eukaryotes. Eukaryotic cells contain various membrane-bound organelles, such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. These organelles are responsible for specific functions within the cell and are enclosed by their own membranes.
In summary, the correct statement is that eukaryotic cells have membrane-bound organelles.