Cell Theory
Biology ⇒ Cell Biology
Cell Theory starts at 6 and continues till grade 12.
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See sample questions for grade 10
A scientist discovers a new organism that is made up of only one cell. According to cell theory, what can be concluded about this organism?
Describe how cell theory changed the way scientists view living organisms.
Describe one way in which prokaryotic cells differ from eukaryotic cells, according to cell theory.
Describe the main difference between unicellular and multicellular organisms in the context of cell theory.
Explain how cell theory supports the idea that all life shares a common origin.
Explain why multicellular organisms are considered to be made up of many cells, according to cell theory.
Explain why the discovery of cell division was important for the cell theory.
A scientist discovers a new organism that is made up of only one cell. According to cell theory, what can be concluded about this organism?
Which of the following best describes the cell theory?
(1) Cells are only found in animals.
(2) Cells are the basic unit of life.
(3) Cells can only be seen with the naked eye.
(4) Cells do not divide.
Which of the following best summarizes the three main points of cell theory?
(1) All living things are made of cells, cells are the basic unit of life, and all cells come from pre-existing cells.
(2) All living things are made of tissues, tissues are made of organs, and organs are made of cells.
(3) All living things are made of atoms, atoms are the basic unit of life, and all atoms come from pre-existing atoms.
(4) All living things are made of molecules, molecules are the basic unit of life, and all molecules come from pre-existing molecules.
Which of the following is a direct implication of the cell theory?
(1) All living things must be multicellular.
(2) Life processes occur within cells.
(3) Only plants have cells.
(4) Cells can exist without any structure.
Which of the following is an example of a unicellular organism?
(1) Human
(2) Amoeba
(3) Dog
(4) Tree
Fill in the blank: According to cell theory, new cells are produced from ________ cells.
Fill in the blank: Matthias Schleiden contributed to cell theory by studying ________ cells.
Fill in the blank: The basic unit of structure and function in living organisms is the ________.
Fill in the blank: The cell theory is a ________ in biology.
True or False: According to cell theory, a single cell can perform all the functions necessary for life.
True or False: According to cell theory, all cells must be able to reproduce.
True or False: According to cell theory, all cells must contain DNA.
True or False: According to cell theory, all cells must have a cell membrane.
