what are cells?. today, you’re going to learn about cells
Post on 05-Jan-2016
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Do you think you can see cells with your eyes? No. Cells are so tiny that you cannot see them withnaked eyes.
At first glance these cells appear to have little in common other than the body or body part that houses them. For all their differences, though, different types of specialized cells have a lot in common. Even plant and animal cells have far more structural similarities than they have differences.
Things to Remember!
1. Cells are basic units of all living things including human beings.2. Cells are not exactly the same in their shape and structure, but remarkably similar.3. New cells are produced from existing cells.
United Streaming The Lives of Cells [19:38] Segments
This video contains 10 segments Introduction: What Are Cells? [01:41] Bacteria [01:34] Protists [02:31] Multicelled Organisms [01:30] Cells Working Together [04:14] Review of Part One [01:03] The Five Basic Life Functions [01:42] The Parts of a Cell [02:15] Making New Cells [02:16]
http://player.discoveryeducation.com/index.cfm?guidAssetId=44AA5AC6-CB75-40A6-8562-DD4FD0900BC5&blnFromSearch=1&productcode=US
4. True or False
Cells are not exactly the same in their shape and structure, but remarkably similar.
5. New cells are produced ___________.
a. from foodb. by dividing existing cellsc. from dead cellsd. from bacteria
6. All cells ___________
a. look exactly alike
b. are red
c. are the basic unit of structure in living things
d. have the same parts
7. To see cells you ____.
a. just look with your eyes
b. use a magnifying glass
c. must use a microscope
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