Cell Theory & Organelles

Which of the answers below is not part of the Cell Theory?

• All living things are made up of cells

• Cells are the basic unit of structure and function

• Cells come from pre-existing cells

• Cells are made up of organelles

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What did the cork scrapings remind Robert Hooke of when he looked at them under the microscope?

• The cells where monks lived in at the monastery

• Tiny animals which he called animalcules

• Layers of bricks that's why we say living things are made up of bricks.

• He was hungry and thought they looked like waffles.

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Schleiden discovered that all plants are made up of ______

• Unicorn farts

• Tiny animals

• Cells

• Planticules

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Schwann discovered that all animals are made up of ______

• Unicorn farts

• Tiny plants

• Cells

• Animalcules

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Together Schleiden and Schwann figured out what part of the cell theory?

• All living things are made up of cells

• Cells are the basic unit of structure and function

• Cells come from pre-existing cells

• Cells are the building blocks of life

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When Schleiden and Schwann did not agree on where cells come from. Rudolf Virchow brought "borrowed" research which proved that _________________.

• All living things are made up of cells

• Cells just appear out of nowhere

• Cells come from pre-existing cells

• Cells are the building blocks of life

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The nucleus is like the _________ of the cell. Because it controls everything that happens in the cell.

• The microwave

• The trashcan

• The intestines

• The brain

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The cell membrane completely surrounds the cytoplasm of the cell. What function does the cell membrane have?

• It regulates what enters and exits the cell.

• It is the trash can of the cell, it gets rid of waste.

• It is the microwave of the cell, it cooks food in less than 30 seconds.

• It is the powerhouse of the cell.

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What is the cell wall?

• It is a tough barrier that surrounds the cell membrane of animal cells.

• It is a tough barrier that surrounds the cell membrane of plant cells.

• It is where photosynthesis takes place

• It is where the plant cells store water and nutrients

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Why do plants need cell walls while animal cells don't?

• Because plants have very weak bones and they would break without cell walls

• Both plant and animals cells contain cell walls

• Because without cell walls, trees would look like giant blobs on the ground

• Because this is where photosynthesis takes place