Describe molecular mechanism of defect in cl-ion channel

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Reference no: EM133290557

Assignment:

Shortly describe essential principles of active transport. Describe molecular mechanism of defect in Cl - ion channel and how it can lead to human pathology.

1. Choose all statements which are related to passive transport

a) Against the concentration gradient

b) Energy is not required

c) Spontaneous molecule transport

d) Transmembrane proteins

e) Uniport

f) Na + / K + ion pump

g) ATP hydrolysis

2. Choose from the list all secondary messengers of signal transduction:

a) DNA

b) Ca 2+

c) GTP

d) cAMP

e) ATP

f) IP3

g) Acetylcholine

h) Epinephrine

3. Choose from the list all statements concerning macromolecule transport:

a) Endocytosis

b) Osmosis

c) Plasmolysis

d) Pinocytosis

e) Aquaporins

f) Cholesterol up- take

g) Ion channels

Fill in the missing:

Ion channels are __________ (passive or active) type of small molecule transport. They transport molecules ________ (up or down) their concentration or electric potential gradients. Gated ion channels are opening the gate in response to ______________.

Common chemical features of all membrane lipids include (more than one answer):

a) A polar portion

b) A glycerol backbone

c) Sugar constituents

d) A hydrophobic domain

e) A phosphate group

Reference no: EM133290557

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