Cells Unit Reveiw

What is the smallest, most basic unit of life?

• Atom

• Cell

• bacteria

• Molecule

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Atoms are smaller than cells. Can atoms be considered living?

• Yes

• No

Answer explanation

Cells are the smallest and most basic unit of life. Nothing smaller than a cell can be considered living.

What is the least amount of cells an organism can have and still be considered living.

• 1

• 3

• 5

• more than 5

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How can you tell the difference between unicellular and multicellular organisms?

• By looking to see if they have a nucleus

• Determine if they are eukaryotic of prokaryotic

• By determining how many cells it has.

• By determining if it is an animal or plant cell.

Answer explanation

unicellular and multicellular refer to the number of cells composing an organism.

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If cells are considered living, can cell organelles be considered living as well?

• Yes

• No

Answer explanation

organelles are small parts of a cell. nothing smaller than a cell can be considered living according to cell theory.

What did you learn about eukaryotic and prokaryotic cell?

plant and animal cells are both __________________ and _________________. SELECT ALL THAT APPLY.

• Eukaryotic

• Prokaryotic

• Multicellular

• Unicellular

If you discovered something on mars and wanted to determine if it was living, what 1 characteristic should you look for?

• if it is breathing

• if it can move

• if it has a heartbeat

• if it is made of cells

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Which of the following is true about living things?

• All cells have the same shape

• All living things have more than one cell

• Organelles within a cell are considered living things

• All living things carry out life functions

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Why can single celled organisms be considered alive? SELECT ALL THAT APPLY

• unicellular organisms are considered living (cell theory)

• single celled organisms are not considered living

• because they have everything they need to perform life functions within a single cell.

• because they are microscopic

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