Prokaryotes vs. Eukaryotes

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Presentation transcript:

Prokaryotes vs. Eukaryotes Cell Theory sec. 7.1 Prokaryotes vs. Eukaryotes

Cell Theory States: All living things are made of cells.

Cell Theory States: Cells are the basic units of structure and function in living things.

Cell Theory States: New cells are produced from existing cells.

Which of the following is NOT a principle of the cell theory? Cells are the basic units of life. All living things are made of cells. Very few cells are able to reproduce. All cells are produced from existing cells.

Prokaryotes vs. Eukaryotes

Prokaryotes = bacteria Eukaryotes = Everything Else! Fungus cell

Prokaryotes smaller and simpler than eukaryotic cells. DNA in area called nucleoid- no nucleus The organisms we call bacteria are prokaryotes.

Eukaryotes (everything that’s not bacteria) generally larger and more complex than prokaryotic cells. contain dozens of structures and internal membranes. Many eukaryotic cells are highly specialized.

Eukaryotes Contain a nucleus- a large membrane- bound structure that contains genetic material in the form of DNA. The nucleus controls many of the cell’s activities. Dark area inside nucleus = nucleolus; makes ribosomes

Which of the following statements about the nucleus is NOT true? The nucleus stores the coded instructions for making the cell’s proteins. The nucleus usually contains a nucleolus region which is where ribosome assembly begins. The nucleus is the site of protein assembly. The nucleus is surrounded by a nuclear envelope that lets materials in and out.