Cell Theory Lesson

Which of these is not part of cell theory?

• All living things are made of one or more cells

• All cells have the same basic structure

• All cells come only from existing cells

• The structure and function of an organism is determined by the structure and function of its cell(s).

About how many cells are in the human body?

• tens of trillions

• hundreds of thousands

• hundreds

• tens of millions

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Which statement is true of multicellular organisms?

• They are made of many copies of one type of cell.

• The cells are specialized.

• The cells do the same job.

• The cells do not need to divide as often.

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What is likely to happen when a cell dies in a multicellular organism?

• The organism's development will slow down.

• The organism will need to survive with its remaining cells.

• Another cell will divide to make a copy of itself.

• The remaining cells will grow larger to make up the lost space.

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Which scientist concluded that all animals are made of cells?

• Theodor Schwann

• Matthias Schleiden

• Rudolf Virchow

• Anton van Leeuwenhoek

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Match the cell theory contributor with their correct invention/discovery

• Antoni van Leeuwenhoek

• Discovered red blood cells and bacteria

• Hans and Zacharias Janssen

• Discovered cells and coined the term "cell"

• Robert Hooke

• Discovered that all plants are made of cells

• Theodor Schwann

• Invented the first compound microscope

• Matthias Schleiden

• Discovered that all animals are made of cells

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According to cell theory, all ​ (a)   are made of ​cells, cells are the smallest units of life, and all cells come from other ​ (b)   .

• living things

• cells

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CELL THEORY says- 1. All living things are made of one or more ​​ (a)   . ​

2. The cell is the basic unit of ​ (b)   .

3. ​ (c)   cells only come from other cells.

​

• cells

• life

• New

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The​ first part of cell theory states that every ​ (a)   thing is made up of ​ (b)   or more ​ (c)  

• living

• one

• cells

• non-living

• two

• organisms

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The ​ (a)   part of cell theory states that every ​ (b)   thing is made up of ​ (c)   or more ​ (d)  

• first

• living

• one

• cells

• second

• third

• non-living

• two

• organisms

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