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| _________________ are the basic components of all matter. |
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| the entire contents of the cell |
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| organisms composed of just one cell (ex. bacteria, many protozoans, and algae) |
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| made up of many cells (ex. some algae, animals, humans and plants) |
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| a collection of similar cells living together |
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| a group of similar cells that work together to carry out a specific function (ex. the muscles cells of the body compose tissues whose primary function is movement) |
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| many multicellular organisms have organs, composed of several types of tissues working together to per for a specific function (ex. stomach) |
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| made up of a group of organs that work together to accomplish life functions (ex. digestive system includes mouth, stomach, intestines, etc) |
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| List the concepts of cell theory |
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Definition
1. cell is basic unit of all living things
2. cells perform all the functions of living things
3. cells come from the reproduction of existing cells. |
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| Describe how the surface area of a cell can influence the maximum size a cell might attain. |
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Definition
the message encoded in the DNA limits the size
the ratio between the surface area of the cell and it's
volume |
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| chemical interactions between proteins form a connection between the cells (tight junction - in organs, anchoring junctions - attach cytoskeletons, gap junctions - narrow passageway between cells) |
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| the cytoplasm of plant cells is connected by tiny passageways called plasmodesmata |
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| Describe the difference between a colony and a tissue. |
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Definition
a colony is a group of similar cells LIVING together; a tissue is a group of similar cell that WORK together to
carry out a specific function |
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| Give 3 examples of (1) organs in the human body and (2) organ systems in the human body |
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Definition
1. stomach, heart, lungs
2. digestive system, respiratory system, nervous system |
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