The smallest eukaryotic cell is the motile alga Micromonas. What is the minimum member of organelles this alga must have?
Two types of prokaryotic cells have been distinguished:bacteria and archaea. How do these cells differ from each other ? How are they similar?
In 1985, a 0.5-mm cell was discovered in surgeonfish and named Epulopiscium fishelsoni(See11.14 page 315) It was presumed to be protozoan, In 1993, researchers determined that Epulopiscium was actually a gram-positive bacterium. Why do you suppose this organism was initially a identified as a protozoan? What evidence would change the classification to the bacterum?
When E. Coli are exposed to hypertonic solition, the bacteria produce a transporter protein that can move K+(Potassium ion) into the cell. Of what value is the active transport of K+, which requires ATP?
