The selective permeabilities of cell membrane are provided mainly by
Anonymous Quiz
5%
pumps
9%
channels
86%
Both of them
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The plasma membrane also
exchanges material with the extracellular environment by
exchanges material with the extracellular environment by
Anonymous Quiz
2%
endocytosis
13%
exocytosis
85%
endocytosis and exocytosis
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the plasma membrane plays key roles in cell cell interactions and in transmembrane signalling
Anonymous Quiz
18%
False
82%
True
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🕊1
glucose is
higher in ........... and protein is higher in ..............
higher in ........... and protein is higher in ..............
Anonymous Quiz
81%
Extracellular fluid, intracellular fluid
19%
Intracellular fluid, extracellular fluid
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The Glycosphingolipid mainly located in the plasma membranes of cell
Anonymous Quiz
28%
Glucosylceramide (cerebrosides)
4%
Ganglioside
63%
Both of them
5%
None of them
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The most common sterol in membranes is ................ which resides
mainly in the plasma membranes of mammalian
mainly in the plasma membranes of mammalian
Anonymous Quiz
95%
Cholesterol
5%
👆🦦
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Cholesterol can also be
found in lesser quantities in ............, ..............., and ...........
found in lesser quantities in ............, ..............., and ...........
Anonymous Quiz
3%
Mitochondria
2%
Golgi complexes
1%
Nuclear membrane
94%
All of them
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According to : Permeability coefficients
H2o= 10-²
Na= 10 -¹² Cl = 10 -¹⁰ Which one is more permeability?
H2o= 10-²
Na= 10 -¹² Cl = 10 -¹⁰ Which one is more permeability?
Anonymous Quiz
77%
H2o
17%
Na
5%
Cl
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Molecules that move rapidly through a given membrane are said to have a ............permeability coefficient
Anonymous Quiz
11%
Low
89%
High
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systems move two
molecules in opposite directions(eg, Na+ in and Ca2+ out).
molecules in opposite directions(eg, Na+ in and Ca2+ out).
Anonymous Quiz
78%
Antiport
9%
Uniport
13%
Symport
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system moves one type of molecule bidirectionally.
Anonymous Quiz
12%
Antiport
81%
Uniport
7%
Symport
🕊2
Movement of small molecules cross cell membrane by
Anonymous Quiz
6%
Active transport
17%
Diffusion
77%
Both of them
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Movement of larg molecules cross cell membrane by
Anonymous Quiz
3%
Endocytosis
3%
Exocytosis
9%
Diffusion
84%
A and b
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transition temperature
Anonymous Quiz
82%
the structure undergoes the transition from ordered to disordered
18%
the structure undergoes the transition from Disordered to ordered
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Integral proteins
Anonymous Quiz
27%
attached to the surface of the lipid bilayer by electrostatic and hydrogen bonds.
73%
either partially or totally immersed in the lipid bilayer.
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Biochemistry ( وزاري )
The most common sterol in membranes is ................ which resides
mainly in the plasma membranes of mammalian
mainly in the plasma membranes of mammalian
امووטּ لازم تددللنا بنقطة As usual 😂🤍
؏ـششتتي💕".
؏ـششتتي💕".
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