4 IIII I 5 IIIII 6Which statement is accurate concerning simple diffusion and facilitated diffusion?In facilitated diffusion, molecules only move with the aid of a protein in themembrane.In simple diffusion, molecules move down the concentration gradient but infacilitated diffusion molecules move up the concentration gradient.Simple diffusion is passive but facilitated diffusion is an active process that usesenergy.Simple diffusion requires molecules to move through special doorways in the cellmembrane.étv A OAa

The process by which molecules or substances move from a region of higher concentration to a region…

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Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Examine the graph presented here. Using your knowledge of how the processes work, label each curve as representative of either simple diffusion or facilitated diffusion. Explain how you determined which curve was which.
Diatomic oxygen (O2) exhibits which of the following membrane transport movements? A. it is not able to cross the membrane by passive transport, because it is big, polar, and inorganic it is not able to cross the membrane by active transport, because it is big, polar, and inorganic it is able to cross the membrane by facilitated diffusion, because it is small, polar, and organic it is able to cross the membrane by active transport, because it is big, nonpolar, and organic it is able cross the membrane by simple diffusion, because it is small, nonpolar, and inorganic
Discuss the concept of a concentration gradient and how it relates to diffusion vs active transport.
Compare and contrast the following methods of a passing cell membrane in terms of movement with respect to the concentration gradient, use of ATP, and the use of transporters with examples. (Simple) diffusion vs Facilitated diffusion
Which of the following processes could result in the net movement of a substance into a cell, if the substance is more concentrated in the cell than in the surroundings? diffusion active transport osmosis facilitated diffusion
Which of the following is correctly paired? Two answer choices are correct. osmosis= a type of active transport facillitated diffusion = a transport proteins are used to move substances across a membrane diffusion = a type of passive transport
Define: simple diffusion, facilitated diffusion. short answer please
Statement 1: The direction of diffusion of a solute across a membrane is determined by its concentration gradient and always moves toward equilibrium. Statement 2: In passive transport, solutes move down the gradient from a region of low concentration to a region of high concentration. A Both statements are true. Both statements are false. C) Statement 1 is true. Statement 2 is false. Statement 1 is false. Statement 2 is true.
Facilitated diffusion is different from simple diffusion because O molecules are small. Owater is transported. energy is used. there is no concentration gradient. proteins act as helpers.
Rate of diffusion through a membrane is: Group of answer choices Inversely proportional to the surface area of the membrane. Directly proportional to the thickness of the membrane. Directly proportional to the concentration gradient. All of the above.
Which of the following are features of facilitated diffusion? There may be more than one correct answer, select all that apply. Requires energy Movement assisted by proteins Can include passive diffusion Depends on ATP hydrolysis Can include ion transport down its concentration gradient in a cell (high to low concentration)
Cells may frequently find themselves in an environment with very low extracellular concentrations of substances needed in higher amounts inside the cell. To obtain these needed items, such cells would be most likely to engage in facilitated diffusion. simple diffusion. osmosis. O active transport.

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