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To cross the cell membrane, water must
| | A | squeeze between phospholipid molecules
| B)| pass through aquaporins
| C)| be transported at the expense of ATP
| | D | be moved by a cotransport system

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The cell membrane controls movement of materials into and out of the cell.The following particles are moving from high concentration to low concentration and are using acarrier protein. How would you describe this type of movement across the membrane?

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The cell membrane controls movement of materials into and out of the cell.The following particles are moving from high concentration to low concentration and are using acarrier protein. How would you describe this type of movement across the membrane?

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

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Osmosis is something that all cells must learn to deal with.Different cells use different strategies

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The movement of molecues from an area of high concentration to an area of low concentration

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The movement of molecues from an area of high concentration to an area of low concentration

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A)Hypotonic
B)Hypertonic
C)Isotonic
D)Homeostasis

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A cell membrane is composed primarily of which of the following......

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A cell membrane is composed primarily of which of the following......

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A. DNA and Protein
B. Carbohydrates only
C. Phospholipids and Proteins
D. DNA and Proteins

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The movement of molecules from an area of high concentration to an area of low concentration                                                                A).Isotonic B).Solution               C).Osmosis              D).Diffusion

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The movement of molecules from an area of high concentration to an area of low concentration                                                                A).Isotonic B).Solution               C).Osmosis              D).Diffusion

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A- Simple diffusion

B-Osmsosis

C-ATP(ActiveTransport)

D-FD(FaclitatedDiffusion)

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A solution that has a greater concentration than a cell, it would be a ____ solution.

A. Hypertonic

B.Hypotonic

C.Isotonic

D Heterogeneous

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The cell membrane controls movement of materials into and out of the cell.
The following particles are moving from high concentration to low concentration and are using a
carrier protein. How would you describe this type of movement across the membrane?
A. simple osmosis
B. active transport
C. simple diffusion
D. facilitated diffusion

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A. water molecules
B. all molecules across a membrane
C. molecules to areas of lower concentration
D. molecules to areas of high concentrations
E. molecules through a protein channel.

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a. molecules are attracted to one another.
b. molecules constantly move and collide with each other.
c. cellular energy forces molecules to collide with each other.
d. cellular energy pumps molecules across the cell membrane.

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What is the difference between passive and active transport?

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What is the difference between passive and active transport?

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A) Both transports need energy
B)Passive transport does not need energy but Active does.
C) Active transport doesn't need energy but Passive does.

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What is the right definition of HOMEOSTASIS

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What is the right definition of HOMEOSTASIS

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A.the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.

B. IT a cell membrane thing

c. CEll membrane and its brother

D. All the above

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Which of the following structures serves as the cell's boundary from it's environment?
A) Mitochondria
B) Cell Membrane
C) Chloroplast
D)Channel Protein

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Which of the following functions does active transport perform in a cell?

A. packaging proteins for export from the cell
B. distributing enzymes throughout the cytoplasm
C. moving substances against a concentration gradient
D. equalizing the concentration of water inside and outside the cell

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the nephron reabsorbs glucose through sodium/glucose transport. what sort of transport is it?            

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the nephron reabsorbs glucose through sodium/glucose transport. what sort of transport is it?            

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A.)Symporter
B.)Antiporter
C.)Sodium Pump
D.)Protein chann

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Which of the following uses energy in the cell

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Which of the following uses energy in the cell

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A... Passive
B....Active
C.....Osmosis
D....H20

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which cell process will move substances against a concentration gradient ?

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which cell process will move substances against a concentration gradient ?

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A. diffusion
B. Facilitated diffusion
C. passive transport
D. Active transport

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The process in which the movement of materials across a membrane requires energy is

A. Passive transport

B. Diffusion

C. Active transport

D. Facilitated diffusion

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Which of the following comparisons is NOT correct? |
A) | endocytosis--entering by sac |
B) exocytosis--leaving by sac
C) active transport--against the gradient
D) facilitated diffusion--with the gradient
E) hypotonic solution--cells shrive

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How do you describe this type of transport across the cell membrane?

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How do you describe this type of transport across the cell membrane?

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A)Active Transport
B)Passive Transport
C)Facilitated Diffusion
D)Co-Transport

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A substance is most likely diffuse into a cell when

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A substance is most likely diffuse into a cell when

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A. It is a large organic compound such as protein or starch
B. It is enclose in an organelle such as a vacuole.
C. the concentration of the substance is greater outside the cel than inside