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7th grade Cells part

The characteristics of a cell

QuestionAnswer
Cell smallest functional and structural unit of all living organisms
organism any living thing
Who was the first person to describe cells? Robert Hooke
any living thing organism
smallest functional and structural unit of all living organisms cell
All organisms are made up of? cells
Why are cells small? their size is limited by their outer surface area
What is the Cell theory? all organisms are made up of one or more cells the cell is the basic unit of all organisms all cells come from existing cells
What 3 scientist discovered the cell theory? Schleiden, Schwann, and Virchow
unicellular organisms organisms made up of just one cell
organisms made up of just one cell unicellular organisms
multicellular organisms organisms made up of more than one cell
organisms made up of more than one cell multicellular organisms
what is the basic unit of all organisms? cell
what is the basic unit of all living things? cell
where do cells come from? existing cells
What parts do all cells have in common? cell membranes, cytoplasms, organelles and DNA
cell membrane protective layer that covers a cell's surface and acts as a barrier between the inside of a cell and the cell's environment
cytoplasm the region enclosed by the cell membrane that includes the fluid and all of the organelles of the cell
organelles a small body in a cell's cytoplasm that is specialized to perform a specific function.
DNA genetic material that provides instructions for all cell processes
nucleus a membrane bound organelle that contains the DNA
a membrane bound organelle that contains the DNA nuleus
prokaryotes single celled organism that does not have a nucleus or membrane bound organelles
where is the prokaryotic DNA located? cytoplasm
ribosomes organelles that do not have a membrane
flagella hairlike structures that help prokaryotes move
Eukaryotic an organism made up of cells that contain their DNA in a nucleus
animals, plants, protists, and fungi are? eukaryotes
multicellular organisms are eukaryotes
The _______ is the smallest functional and structural unit of all living things cell
All cells are surrounded by a cell membrane
A living thing is called an organism
Describe 2 ways that all cells are alike? They have cell membranes. They have cytoplasms. They have organelles. They have DNA
What are the main ideas of the cells theory? all organisms are made up of one or more cells the cell is the basic unit of all organisms all cells come from existing cells
How do prokaryotes differ from Eukaryotes? prokaryotes do not have a nucleus the eukaryotes do
How are prokaryotes and Eukaryotes similar? They both have DNA
How is the structure of a unicellular organism different than the structure of a multicellular organism? unicellular cells are only made up of one cell multicellular organisms are made up of more than one cell
How does the difference in unicellular and multicellular organisms affect their function?
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