A one-celled organism. Standard 4 key idea 1 performance indicator 1.1 major understanding 1.3a. Bell Ringer. True or false? All prokaryotes are one-celled (unicellular.) 2. All eukaryotes are multicellular. True. False: Some eukaryotes such as protists are unicellular.
Standard 4 key idea 1 performance indicator 1.1 major understanding 1.3a
2. All eukaryotes are multicellular.
False: Some eukaryotes such as protists are unicellular.
Prokaryotic unicellular organisms: bacteria and archaea. All prokaryotic organisms are unicellular.
Eukaryotic unicellular organisms: Protists and some fungi are unicellular.
A one-celled organism is able to function despite lacking the levels of organization present in more complex organisms.
In other words, a unicellular organism does not have tissues, organs, and organ systems that are found in multicellular organisms.
The structures present in some singled-celled organisms act in a manner similar to the tissues and systems found in multicellular organisms. This enables them to perform all of the life processes needed to maintain homeostasis.
What does this mean?
(1) Cell membranes
Pick an organelle of a paramecium and write its function. Write an organ or organ system of humans that is equivalent (has the same function) of your choice of organelle.