Biology: Unit 2 Review

Which of the following is not one of the fundamental ideas of cell theory?

• Cells arise only from previously existing cells.
• All living organisms are composed of one or more cells.
• Cells are the basic unit of structure and function of all living organisms.
• All cells contain specialized internal structures.

What is NOT a part of cell theory:

• all cells come from existing cells

• all cells have a nucleus

• all living things are made of cells

• cells are basic unit of structure and function in living things

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Prokaryotic cells do NOT have membrane bound organelles or ______________________________.

• cytoplasm

• a nucleus

• ribosomes

• DNA

In eukaryotic cells DNA is primarily contained within the:

• cytoplasm

• ribosomes

• vacuoles

• nucleus

All cells have a cell membrane, cytoplasm, DNA, and...

• cell wall

• nucleus

• ribosomes

• chloroplast

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Which statement is a part of the cell theory?

• all cells come from preexisting cells
• bacteria are prokaryotic cells
• eukaryotic cells are complex
• humans are multicellular

The ___ is the basic unit of sturucture and function of organisms

• atom
• cell
• matter
• all other answers are correct

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Rocks are not living because

• they never move
• they aren't needed for humans
• they are not made of cells
• they don't break down

Cells are often called "the ____ of life."

• bread
• road map
• building blocks
• meaning

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Which organelle controls what goes in and out of the cell?

• nucleus

• nucleolus

• cell membrane

• nuclear membrane

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