Answered: 1- One of the following diffusion paths…

1- One of the following diffusion paths is not driven by the concentration of sub: a- Primary active transport C- Simple diffusion b- Passive diffusion d- B+C

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter3: The Plasma Membrane And Membrane Potential

Section: Chapter Questions

Problem 1TAHL: Which of the following methods of transport is being used to transfer the substance into the cell in...

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Concept explainers

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.

Question

1- One of the following diffusion paths is not driven by the concentration of sub:
a- Primary active transport
C- Simple diffusion
b- Passive diffusion
d- B+ C

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The principal force driving movement in diffusion is the. temperature particle size concentration gradient membrane surface area
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1. Fill out the following chart comparing different mechanisms of transport across a plasma membrane: Simple Facilitated Secondary Primary Active Diffusion Diffusion Active Transport Transport Types of molecules transported? (List size, polarity, charge) Requires a carrier or channel protein? (Yes/No) Requires an additional energy source? (Yes/No) Do any molecules travel against their concentration or electrochemical gradients? (Yes/No)