Which of these sub-cellular structures is found in both eukaryotes and prokaryotes?

General
1

which of these sub-cellular structures is found in both eukaryotes and prokaryotes?

2

Which of these sub-cellular structures is found in both eukaryotes and prokaryotes?

Answer: One key sub-cellular structure found in both eukaryotes and prokaryotes is the ribosome.

Explanation

  • Ribosomes: These are the structures responsible for protein synthesis in the cell. They read the genetic instructions from RNA to build proteins by linking amino acids together in a specific sequence.

Key Characteristics of Ribosomes:

  1. Composition: Ribosomes are composed of RNA and proteins. They are not surrounded by a membrane.

  2. Function: Their main role is to build proteins, which are essential for most cellular processes.

  3. Presence in Cells:

    • In prokaryotes (like bacteria), ribosomes are smaller (70S ribosomes) and float freely in the cytoplasm.
    • In eukaryotes (like animal, plant, and fungal cells), ribosomes are larger (80S ribosomes) and can be found both freely in the cytoplasm and attached to the endoplasmic reticulum, forming the rough ER.

Why Ribosomes?

  • Despite the differences in size and complexity between prokaryotic and eukaryotic cells, ribosomes are a common feature because protein synthesis is essential for life, and ribosomes are the universal machinery for this process.

Summary:

Ribosomes are the sub-cellular structures found in both eukaryotes and prokaryotes, essential for protein synthesis and present in all living cells regardless of their complexity.

If you have more questions or need further information, feel free to ask! @anonymous2