Multicellular/Unicellular Organisms Review

What is the difference between single-celled organisms’ and multicellular organisms’ ability to survive?

• Multicellular organisms depend on other organisms for survival, while single-celled organisms do not.

• Single-celled organisms depend on other organisms for survival, while multicellular organisms do not.

• Single-celled organisms contain many specialized cells necessary for survival, while multicellular organisms do not.

• Multicellular organisms contain many specialized cells necessary for survival, while single-celled organisms can survive alone.

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Which best explains why a human needs many cells to survive?

• Each individual cell is too small to function alone

• Each cell joins with other cells to form one massive cell.

• Each cell works with other cells to perform all necessary life functions.

• Each cell absorbs a different gas from the environment necessary for human survival.

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Which best explains why an amoeba is considered a single-celled organism?

• It does not require all life functions to survive.

• It contains genetic instructions for reproduction

• The entire organism is made up of several types of cells.

• The entire organism is one cell in contact with the external environment.

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Which of these is a structure that is present in all organisms?

• a tissue

• a cell

• a stomach

• a brain

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Which is the order of cellular organization from least to most complex in multicellular organisms?

• cell, tissue, organ, organ system, organism

• tissue, cell, organ, organ system, organism

• cell, organ, tissue, organ system, organism

• organism, organ, organ system, tissue, cell

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How can a Paramecium carry out all of life’s functions?

• by having specialized cells

• by being larger that most organisms

• by being smaller that most organisms

• by performing all processes in one cell

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A unicellular organism is BEST described as being

• a complex organism.

• a microorganism.

• an organism with specialized cells.

• an organism with different types of tissues.

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A single-cell organism can do everything a cell from a multicellular organism can do EXCEPT

• specialize.

• reproduce

• use energy

• make protein

Which cell can survive without the help of other cells?

• leaf cell

• yeast cell

• onion cell

• muscle cell

Which BEST describes ALL unicellular organisms?

• Every cell is round

• Every cell can make food.

• Every cell can move on its own

• Every cell performs all life functions