kind of transport that diffuse down concentration gradient From (high) concentration to (low) concentration
Passive transport
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
The fluid mosaic model
What kind of microscope that directs electrons over the surface of the specimen, producing a three-dimensional image
SEM " scanning electron microscope "
Energy is required for diffusion because the particles already are in motion ( T \ F )
F
what did robert hook use to observe the cell ................
cork
The diffusion of water across a selectively permeable membrane
Osmosis
label part B
Transport protein
What is the name of this structure?
Phospholipid
A cell was first discovered by
Robert hook
Molecules that have oppositely charged region
Polar Molecules
What kind of cell is this
Eukaryotic cell
What kind of transport is this ?
Active transport
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
What kind of diffusion that substances uses transport proteins to move the substance across the plasma membrane
Facilitated diffusion
What kind of cell that have membrane-bound organelles ?
Eukaryotic cell
What is the function of part D ?
Cell's identity
What kind of diffusion is this ?
simple diffusion
organisms with only one cell are called .........................
unicellular
He was the first to observe a living cell
Anton Van leeuwenhoek
is the basic structural and functional unit of all living organisms
The cell
uphill transport is called
Active transport
A key property of the plasma membrane is
selective permeability
..................... contributes to the fluidity of the plasma membrane
Cholesterol
What are the two kinds of transport protein
carriers and channels
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