Cell Theory and Microscopes

What tool do you use to view cells?

• microscope

• meter stick

• telescope

• graduated cylinder

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Robert Hooke, Antonie van Leeuwenhoek, Tehdor Schwann, Rudolph Virchow, and Matthias Schleiden were all responsible for what theory?

• The Theory of the Continental Drift

• The Theory of Relativity

• The Cell Theory

• The Theory of Gravity

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Cell Theory sums up three important facts about cells. They are:

• The cell is the most basic unit of life.

• Creatures can live without cells.

• Cells magically appear when we need them.

• All cells come from pre-existing cells.

• All organisms have 1 or more cells.

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When Robert Hooke looked at a cork under a microscope, he saw that it was made of tiny boxes. He called these boxes _____ because they reminded him of rooms in which monks lived.

• rooms

• nucleus

• cells

• cubicles

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What did Mr. Schleiden and Mr. Schwann both discover individually? Choose only 1 answer.

• All cells have organelles.

• All living things are composed of one or more cells.

• All living things can digest food, turning food into energy.

• New cells are made when older cells divide.

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Rocks are not living because

• they never move.

• they don't break down.

• they aren't needed for humans.

• they are not made of cells.

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The part of the cell that stores DNA and controls the cell is called:

• ribosome

• cell membrane

• the bean

• nucleus

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What is mitosis?

• The most basic structural and functional unit of all organisms.

• The things on the ends of my feet.

• All processes in which our cells divide to make new cells.

Our cells use mitosis in all the situations except for which one. Which one doesn't belong?

• When our old cells die and need to be replaced.

• When we are growing.

• When we are hurt and need to heal.

• When we get a haircut.

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True or False: When we grow, our cells get bigger with us.

• True- We do not get any new cells when we grow.

• False- Our cells divide to make more cells when we grow.

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