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During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will?                                             a. move across the membrane to the outside of the cell.                                      b. stop moving across the membrane                                .c. continue to move across the membrane in both directions.                                 d. move across the membrane to the inside of the cell.

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During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will?                                             a. move across the membrane to the outside of the cell.                                      b. stop moving across the membrane                                .c. continue to move across the membrane in both directions.                                 d. move across the membrane to the inside of the cell.

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A. pass substances out of the cell in the vesicles.
B.  pass substance out of the cell through the membrane by osmosis
C)release substances directly into the extracellular fluid through a pore
D) release substances directly into the extracellular fluid through a pit
E)| identify substances in the environment

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Endocytosis is an example of what type of transport?

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Endocytosis is an example of what type of transport?

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A. osmosis
B.facilitated diffusion
C. active transport
D.passive transport

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1) what is the process that moves any material from high concentration to low concentration is called?

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1) what is the process that moves any material from high concentration to low concentration is called?

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A. diffusion

B. Active transport

C. endocytosis

D. osmosis

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1) What is (are) the main difference(s) between passive transport and active transport?
A. Active transport requires cellular energy for substances to cross the cell membrane; passive transport does not.

B. Passive transport occurs primarily in single-cell organisms; active transport occurs primarily in multi-cellular organisms.

C. Active transport works against gravity (for example, upwards from the roots of a tree); passive transport works with gravity

D. Passive transport does not require any cellular proteins; active transport requires cellular proteins.

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The methods of membrane transport that don't require protein channels or carriers are	                                            A) osmosis                                  	B)diffusion	                    C)phagocytosis	            D)exocytosis 	                    E)all of the above

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The methods of membrane transport that don't require protein channels or carriers are	                                            A) osmosis                                  	B)diffusion	                    C)phagocytosis	            D)exocytosis 	                    E)all of the above

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The diffusion of water across a selectively permeable membrane is called?
A)Osmotic Pressure
B)Osmosis
C)Pinocytocis
D)Active Transport

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Osmosis is used to move molecules across the cell membrane.  Which of the following are characteristics of osmosis.  Check two correct answers.                                    A. Moves molecules from high concentration to low concentration                            

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Osmosis is used to move molecules across the cell membrane.  Which of the following are characteristics of osmosis.  Check two correct answers.                                    A. Moves molecules from high concentration to low concentration                            

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B. Requires energy input
C. Moves molecules from low concentration to high concentration
D. Involves vesicles to move materials
E. Involves water molecules only

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Unlike passive transport, active transport requires
A. High to High Concentration
B. Low to Low Concentration
C. High to Low Concentration
D. Low to High Concentration

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The process in which the movement of materials across a membrane required energy?

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The process in which the movement of materials across a membrane required energy?

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A Passive transport
B Diffusion
C Active transport
D Facilitation diffusion

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The movement of molecules into a cell through transport proteins in the cell membrane is a type of...

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The movement of molecules into a cell through transport proteins in the cell membrane is a type of...

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A. osmosis
B. selective transport
C. energy expenditure
D. facilitated diffusion