Movement through the Cell Membrane

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statistics
by Dr. Osama M. Khaled last modified 2022-11-17T07:28:27+00:00

In addition to providing protection, shape, and strength to the cell, the membrane helps regulate the flow of materials in and out of the cell

Questions #: 7
Time: 20 minutes
Pass Score: 80.0%
Style
Mode

The membrane helps ______ the flow of materials in and out of the cell

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Explanation

The condition of constant internal environment is referred to as chemical homeostasis

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Explanation

Movement of molecules in and out of the cell

When the movement of molecules occurs on its own, without any organized energy input from the cell, the movement is termed (1) transparent . When the cell expends energy to move molecules from one location to another, the process is known as (2) transparent

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active transport
passive transport
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Explanation

Diffusion is a type of passive transport where the movement of molecules occur in its own in and out of a cell

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Explanation

Movement of particles in diffusion, cell passive transport

In a system where diffusion occurs, a net movement of particles can be observed over time from regions of (1) transparent concentration of that substance to regions of (2) transparent concentration of that substance.

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lower
higher
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Explanation

From highest concentration to lowest concentration

The particles moving from the area of greater concentration will produce a concentration gradient ranging from the point of highest concentration to the point farthest away, where the lowest concentration occurs

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Explanation

Diffusion Illustrated

Arrange diffusion steps

(1) transparent   
→  
(2) transparent   
→  
(3) transparent  
 
 
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POINTS (1)

Correct Answer

Explanation

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