Intro to Cells

The main difference between PROkaryotic and EUkaryotic cells is that

• one is alive and the other is not

• one has a nucleus and the other does not

• one makes proteins and the other does not

• one has a cell membrane and the other does not

One thing that both PROkaryotic and EUkaryotic cells have in common is

• they both have membrane bound (fancy) organelles

• they both have a nucleus

• they both have DNA

• they are ALWAYS unicellular

The cell theory states that all cells are prokaryotic

• true

• false

An organ is made up of different kinds of _______ that work together to perform a specific function.

• organ systems

• organisms

• cells

• tissues

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Which one of these is NOT a characteristic of life?

• uses energy

• has DNA

• able to reproduce

• is multicellular

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An ___________ is a group of organs working together to perform a certain function.

• organ

• organ system

• tissue

• cell

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A _____ is a group of similar cells working together to perform a specific job.

• cell

• organ

• organ system

• tissue

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Which one of these is NOT part of the cell theory?

• A nucleus is necessary for life.

• A cell is the smallest unit of structure and function in all living things.

• All living things are made of at least one cell.

• All cells come form other cells.

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Procaryotic cells do not have DNA.

• true

• false

Both PROkaryotic and EUkaryotic cells have

• nucleus

• ribosomes

• mitochondria

• ears