Term
| A cell is the ____ __ of life that carries out all functions of a living thing |
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Definition
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Term
| Cells -> Tissues ->___->_____-> Individuals |
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Definition
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Term
| Live things may be either ____ or ____ |
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Definition
| unicellular or multicellular |
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Definition
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Term
| The average human is composed of about ______ cells |
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Definition
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Term
| There are at least ___ different kinds of cells in the humamn body |
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Definition
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Term
| Microscope was invented in the |
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Definition
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Term
| Who named the basic unit of life cell? |
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Definition
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| Who was the first to observe living cells? |
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Definition
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| Three people who contributed to the cell theory |
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Definition
| Shlieiden, Schwann, Virchow |
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Term
| Name the parts of the Cell Theory. |
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Definition
1. Cells are the basic unit of all life
2. All organisms are made of cells
3. Cells come from other cells |
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Term
| Name the pros and cons of Light Microscopes. |
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Definition
Pros: cheap, small, can study living things
Cons: can only magnify to about 1000x, large specimens must be cut so light can pass through |
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Term
| Name the pros and cons of Electron Microscopes |
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Definition
pros: can magnify 1000000x, uses electrons instead of light
cons: very expensive, big, can't study living specimens |
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Term
| Cell membrane is made up of? |
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Definition
| thin layer of lipid and protein that acts as a "wall" (not a cell wall) |
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Term
| Cell membranes are only __-__nm thick |
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Definition
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Term
| What is the type of lipid that membranes are made up of? |
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Definition
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Term
| In water, phospholipids form two layers called a ___ ____ |
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Definition
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Term
| What are the nine organelles? |
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Definition
| cell membrane, nucleus, cytoplasm, endoplasmic reticulum, ribosomes, golgi apparatus, lysosomes, cytoskeleton, mitochondria |
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Term
| What is the function of the cell membrane? |
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Definition
| serves as protection for the cell, also monitors what comes in and out |
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Term
| What is the function of the nucleus? |
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Definition
| holds all information needed for replicating the cell |
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Term
| what is the function of the cytoplasm? |
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Definition
| it holds all other organelles |
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Term
| What is the function of the endoplasmic reticulum? |
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Definition
| produces materials for the cell |
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Term
| What is the function of ribosomes? |
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Definition
| produce proteins for the cell |
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Term
| What is the function golgi apparatus? |
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Definition
| sorts molecules and packages for cells |
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Term
| What is the function of lysosomes? |
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Definition
| breaks down wastes and stores proteins |
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Term
| What does the cytoskeleton do? |
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Definition
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Term
| What is the function of mitochondria? |
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Definition
| provides usable energy for the cell in the form of ATP |
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Term
| What characterizes cilia? |
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Definition
| there are many of them and they are short |
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