Term
| 1.)What is a cell? When were they discovered? |
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Definition
| Smallest structional and functional unit of living things. Discovered in the mid-1600s |
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Term
| 10.)What three statements make up cell theory? Who added the third statement? |
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Definition
-Three statements:
-All organisms are made up of one or more cells.
-The cell is the basic unit of all living things.
-All cells come from existing cells.
Third statement added by Rudolf Virchow |
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Term
| 11.)What happens AS a cell gets larger? |
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Definition
| -The cell’s volume increases. |
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Term
| 12.)What happens IF a cell gets TOO large? |
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Definition
| -The cell’s surface area will not be large enough to take in enough nutrients or pump ot enough water. |
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Term
| 13.)What is a cell membrane? What does it separate? What does it control? |
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Definition
| The cell membrane is a protective layer that covers the cell’s surface and acts as a barrier. It serperates the cell’s contents from its environment. It controls materials going into and out of the cell. |
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Term
| 14.)What is the cytoplasm? |
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Definition
| The fluid inside the cell and almost all of its contents. |
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Term
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Definition
| Structures that have specific jobs inside the cell. |
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Term
| 16.)What does DNA stand for? What does it carry? |
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Definition
| -Deoxyribonucleic acid. It carries information needed to make new cells and new organisms. |
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Term
| 17.)What is a repository? What is the repository for DNA? |
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Definition
| -Repository is the storage area. For DNA it’s the nucleus. |
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Term
| 18.)Why do most cells always need to have DNA? |
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Definition
| DNA gives these cells instructions on how to make proteins. |
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Term
| 19.)What is the difference between prokaryotic and eukaryotic cells? |
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Definition
| Prokaryotic cells don’t have a nucleus and eukaryotic cells do. |
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Term
| 2.) Who was the first person to describe cells? |
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Definition
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Term
| 20.)What two categories are prokaryotic cells classified into? |
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Definition
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Term
| 21.)How does DNA appear as in prokaryotic cells? |
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Definition
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Term
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Definition
| -Tiny round organelles made of protein and other material. |
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Term
| 23.)How much bigger are eukaryotic cells compared to prokaryotic cells? |
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Definition
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Term
| 3.)Why did he use the name cells for his discovery? |
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Definition
| Because cells mean “little rooms” an they looked as if they were made of boxes. |
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Term
| 4.)What types of organisms have cell walls? What type doesn't? |
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Definition
| Plant and fungi cells. Animal cells don’t have cell walls. |
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Term
| 5.)Why did Hooke believe that animals weren't made of cells? |
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Definition
| The lack of cell walls in animal cells make them harder to see, thus, Hooke couldn’t see their cells so he thought that animals weren’t made of cells. |
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Term
| 6.)Who is Anton van Leeuwenhoek? What did he examine through microscopes? |
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Definition
| A dutch merchant. He examined pond scum. |
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Term
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Definition
| animalcules or single-celled organisms. |
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Term
| 8.)What shape are blood cells in fish, birds, and frogs? in humans and dogs? |
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Definition
Fish, birds, and frogs: oval
Humans and dogs: round and flat |
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Term
| 9.)What did Matthias Schleiden conclude? Theodor Schwann? |
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Definition
| Matthias Schleiden concluded that all plant parts were made of cells. Theodor Schwann concluded that all animal tissues were made of cells. |
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