BIO 156 Exam 2 || Guaranteed Pass.
The plasma Mebrane is common to correct answers all cells
The Plasma membrane seperates correct answers internal living cytoplasm from the external
environment of the cell
Fluid mosaic model has three components correct answers phosphlipids, peripheral & integral
proteins & Cholesterol
Phosphlipid Bilayer correct answers External & Cytoplasmic surface lined with hydrophilic
polar heads. Its fatty acid tail is non polar and hydrophobic
Protein Molecules correct answers Float around
can be peripheral or integral
some have carbohydrate chains attached
Peripheral Proteins correct answers are found on the inner membrane surface
Integral protein correct answers are partially or wholly embedded (transmembrane) in the
membrane
5 functions of membrane proteins correct answers Channel
Carrier
Cell Recognition
Receptor
Enzymatic
, Channel Proteins correct answers are tubular, allow passage of larger and charged molecules
through the membrane
Carrier Proteins correct answers Combine with chemical substance to be transported, assist
passage of larger & charged molecules through membrane
Cell Recognition correct answers Provides unique chemical ID for cells
Helps the body to recognize foreign substance
Receptor Proteins correct answers Binds with the messenger molecule
Causes cell to respond to message
Enzymatic Proteins correct answers Carry out metabolic reactions directly
Two Types of transport correct answers Active & Passive
Active Transport correct answers requires a carrier protein - charged
Requires ATP energy
goes against the concentration gradient
Passive Transport correct answers Not ATP required
Molecules follow the concentration gradient
Facilitated Transport correct answers uses a carrier protein to transport a molecule that is too big
Diffusion correct answers a solution that consists of a solvent (water) and a solute (dissolvable
solid such as; sugar, salt or dye) Creates equilibrium
The plasma Mebrane is common to correct answers all cells
The Plasma membrane seperates correct answers internal living cytoplasm from the external
environment of the cell
Fluid mosaic model has three components correct answers phosphlipids, peripheral & integral
proteins & Cholesterol
Phosphlipid Bilayer correct answers External & Cytoplasmic surface lined with hydrophilic
polar heads. Its fatty acid tail is non polar and hydrophobic
Protein Molecules correct answers Float around
can be peripheral or integral
some have carbohydrate chains attached
Peripheral Proteins correct answers are found on the inner membrane surface
Integral protein correct answers are partially or wholly embedded (transmembrane) in the
membrane
5 functions of membrane proteins correct answers Channel
Carrier
Cell Recognition
Receptor
Enzymatic
, Channel Proteins correct answers are tubular, allow passage of larger and charged molecules
through the membrane
Carrier Proteins correct answers Combine with chemical substance to be transported, assist
passage of larger & charged molecules through membrane
Cell Recognition correct answers Provides unique chemical ID for cells
Helps the body to recognize foreign substance
Receptor Proteins correct answers Binds with the messenger molecule
Causes cell to respond to message
Enzymatic Proteins correct answers Carry out metabolic reactions directly
Two Types of transport correct answers Active & Passive
Active Transport correct answers requires a carrier protein - charged
Requires ATP energy
goes against the concentration gradient
Passive Transport correct answers Not ATP required
Molecules follow the concentration gradient
Facilitated Transport correct answers uses a carrier protein to transport a molecule that is too big
Diffusion correct answers a solution that consists of a solvent (water) and a solute (dissolvable
solid such as; sugar, salt or dye) Creates equilibrium
