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cell membrane permeability

Authored by Alaa Alharbi

Biology

University

Used 7+ times

cell membrane permeability
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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Diffusion of ions is when :

Energy is needed

Ions diffuse from high concentration to lower concentration

Ions diffuse from low concentration to higher concentration

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The cell membrane divides the intercellular only

True

False

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Three factors can alter the channel protein conformations ?

Ligand-gated ion channels

Voltage-gated ion channels

Mechanically gated ion channels

All of above

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The process of opening and closing ion channels is known as channel gating

True

False

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The ion channels selectivity is based on the following EXCEPT:

Channel diameter

The charged and polar surface of the polypeptide

Electrically attract or repel the ions

The thickness of the cell membrane

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