Question

1. list three (3) similarities and three (3) differences between eukaryotic cells and prokaryotic cells. (give an example of each.) similarities: differences:

Explanation:

Eukaryotic and prokaryotic cells share basic life - sustaining features like cell membranes for protection and regulation, ribosomes for protein synthesis, and DNA for genetic information storage. However, they differ in cellular organization, with eukaryotes having a nucleus and membrane - bound organelles, and also in size, with eukaryotes being generally larger. Examples are provided to illustrate each point.

Answer:

Similarities:

1. Both have cell membranes - For example, a human skin cell (eukaryotic) and a bacterium (prokaryotic) both have a cell - membrane that controls the movement of substances in and out of the cell.
2. Both have ribosomes - Ribosomes are used for protein synthesis in both types of cells. For instance, in a plant root cell (eukaryotic) and an E. coli cell (prokaryotic), ribosomes are present for making proteins.
3. Both have DNA - All cells store genetic information in DNA. A yeast cell (eukaryotic) and a Streptococcus cell (prokaryotic) contain DNA as their genetic material.

Differences:

1. Eukaryotic cells have a nucleus, prokaryotic cells do not - A liver cell (eukaryotic) has a well - defined nucleus containing DNA, while a cyanobacterium (prokaryotic) has its DNA in a nucleoid region without a nuclear membrane.
2. Eukaryotic cells have membrane - bound organelles, prokaryotic cells do not - A muscle cell (eukaryotic) has mitochondria, endoplasmic reticulum, etc. which are membrane - bound organelles, but a Salmonella cell (prokaryotic) lacks such membrane - bound organelles.
3. Eukaryotic cells are generally larger than prokaryotic cells - A typical animal cell (eukaryotic) has a diameter of 10 - 100 μm, while a typical bacterial cell (prokaryotic) has a diameter of 0.1 - 5 μm.