Cells

Which of the following statements is not part of the cell theory?

• Cells are the basic unit of structure and function in all living things.
• All cells are produced from other cells.
• Only animal cells are composed of cells.
• All living things are composed of cells.

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The invention of the microscope made it possible for people to discover and learn about

• Plants
• Skin 
• Animals 
• Cells

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What is one way in which all living things on Earth are alike?

• All living things have hair.
• All living things are made of cells and come from other cells.
• The cells of all living things have chloroplast.
• All living things can move. 

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Which statement reflects one of the major components of the cell theory?

• All living things are multi-cellular.
• Organs are the basic unit of structure and function for all living things.
• All cells come from previously existing cells.
• Every organism has a reproductive system to ensure survival of the species.

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What structures distinguish a plant cell from an animal cell?

• Plant cells have cell walls and ribosomes.
• Plant cells have cell walls and chloroplasts.
• Plant cells have chloroplasts and ribosomes.
• Plant cells have chloroplasts and mitochondria.

When cells are damaged, new cells are created by cell division. How does the cell theory support this fact?

• It states that all cells have a nucleus which divides.
• It states that all living things are made up of one or more cells.
• It states that cells come from previously existing cells.
•  It states that the basic units of structure and function are cells.

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The basic unit of structure and function in a living things.

• chloroplast
• nucleus
• cell
• cell membrane

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This thin layer protects the cell and regulates what substances enter and leave the cell.

• cell membrane
• cell
• cell wall
• golgi body

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In a plant cell, a stiff wall surrounds the membrane, giving the cell a rigid, boxlike shape?

• cell membrane

• cell

• ribosome

• cell wall

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These organelles capture energy from sunlight and use it to produce food for the cell.

• cell membrane
• chloroplasts
• cell wall
• ribosomes

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