is the basic structural and functional unit of all living organisms
The cell
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what did robert hook use to observe the cell ................
cork
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A cell was first discovered by
Robert hook
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organisms with only one cell are called .........................
unicellular
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He was the first to observe a living cell
Anton Van leeuwenhoek
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What are the principles of the cell theory ?
All living organisms are composed of one or more cells , Cells are the basic unit of structure of all living organisms , Cells arise only from previously existi
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kind of transport that diffuse down concentration gradient From (high) concentration to (low) concentration
Passive transport
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uphill transport is called
Active transport
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Energy is required for diffusion because the particles already are in motion ( T \ F )
F
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The diffusion of water across a selectively permeable membrane
Osmosis
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What kind of diffusion that substances uses transport proteins to move the substance across the plasma membrane
Facilitated diffusion
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What are the two kinds of transport protein
carriers and channels
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Molecules that have oppositely charged region
Polar Molecules
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What is the function of part D ?
Cell's identity
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label part B
Transport protein
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Together, the phospholipids in the bilayer create a “sea” in which other molecules can float, like apples floating in a barrel of water creating a model called
