Question

Which of the following is a characteristic of both prokaryotic and eukaryotic cells?

Answer 1

The characteristics that are present in both prokaryotic and eukaryotic cells are a plasma membrane, also called a cell membrane, cytoplasm and ribosomes.

Explanation:

• The plasma membrane, also called the cell membrane, is the membrane found in all cells that separate the cell's interior from the outside environment.
• The plasma membrane consists of a lipid bilayer that is semipermeable.
• The plasma membrane regulates the transport of materials entering and exiting the cell.
• In eukaryotic cells with a nucleus, the cytoplasm is everything between the plasma membrane and the nuclear envelope.
• In prokaryotes, which lack a nucleus, cytoplasm simply means everything found inside the plasma membrane.
• The main difference between prokaryotic and eukaryotic ribosomes is that the prokaryotic ribosomes are small, 70 S ribosomes whereas the eukaryotic ribosomes are larger, 80S ribosomes.
• Both types of ribosomes are made up of a large and a small subunit. Each subunit is made up of rRNA and ribosomal proteins.
• Prokaryotic cells lack a nucleus, while eukaryotic cells have a nucleus. Prokaryotic cells lack internal cellular bodies (organelles), while eukaryotic cells possess them.