Unit 4 Target 5: Cell Membrane Transport Quiz
- 1.Which of the following does NOT expend energy?
- A.
Active transport
- B.
A sodium-potassium pump
- C.
Diffusion
- D.
Endocytosis
- 2.Which means of particle transport requires input of energy from cell?
- A.
Osmosis
- B.
Diffusion
- C.
Facilitated diffusion
- D.
Active transport
- 3.By what process does a sodium ion exit a cell through plasma membrane?
- A.
Facilitated diffusion
- B.
Osmosis
- C.
Active transport
- D.
Exocytosis
- 4.Which of the following is NOT a characteristic of facilitated diffusion?
- A.
It involves a change in the shape of its carrier.
- B.
It moves substances against a concentration gradient.
- C.
It requires no energy input.
- D.
It requires a carrier protein.
- 5.The sodium-potassium pump usually pumps
- A.
Sodium into the cell.
- B.
Potassium into the cell.
- C.
Potassium out of the cell.
- D.
Both A and C.
- 6.Sugar molecules can enter cells through the process of
- A.
Ion pumps.
- B.
Facilitated diffusion.
- C.
Osmosis.
- D.
Exocytosis.
- 7.Molecules that are too large to be moved through the membrane can be transported INTO the cell by
- A.
Diffusion.
- B.
Endocytosis.
- C.
Exocytosis.
- D.
Lipid carriers.
- 8.When a cell produces a protein to be used in a different part of the body, through which type of transport does it LEAVE the cell?
- A.
Osmosis
- B.
Facilitated diffusion
- C.
Endocytosis
- D.
Exocytosis
- 9.Diffusion takes place
- A.
Only through a lipid bilayer membrane.
- B.
From an area of low concentration to an area of high concentration.
- C.
Only in liquids.
- D.
From an area of high concentration to an area of low concentration.
- 10.
![The diagram shows a cell membrane composed of a phospholipid bilayer with a channel protein. Each x represents the same type of molecule inside or outside the cell. Facilitated diffusion moves these molecules across the cell membrane.In what direction do these molecules move and through which structure? - ProProfs]( "The diagram shows a cell membrane composed of a phospholipid bilayer with a channel protein. Each x represents the same type of molecule inside or outside the cell. Facilitated diffusion moves these molecules across the cell membrane.In what direction do these molecules move and through which structure?")
The diagram shows a cell membrane composed of a phospholipid bilayer with a channel protein. Each x represents the same type of molecule inside or outside the cell. Facilitated diffusion moves these molecules across the cell membrane.In what direction do these molecules move and through which structure?- A.
Into the cell through the channel protein
- B.
Into the cell through the phospholipid
- C.
Out of the cell through the channel protein
- D.
Out of the cell through the phospholipid bilayer
- 11.
![Refer to the illustration above. The process shown is called - ProProfs]( "Refer to the illustration above. The process shown is called")
Refer to the illustration above. The process shown is called- A.
Osmosis.
- B.
Facilitated diffusion.
- C.
Active transport .
- D.
Diffusion.
- 12.The diffusion of water across a selectively permeable membrane is called
- A.
Osmosis.
- B.
Osmotic pressure.
- C.
Facilitated diffusion.
- D.
Active transport.
- 13.As a result of diffusion, the concentration of many types of substances
- A.
Always remains greater inside a membrane.
- B.
Eventually becomes balanced on both sides of a membrane.
- C.
Always remains greater on the outside of a membrane.
- D.
Becomes imbalanced on both sides of a membrane.
- 14.The cytoplasm of red blood cells has a higher concentration of Na+ than does pure water. Suppose a biologist places a red blood cell in pure water. Is there a net flow of water molecules into or out of the red blood cell, and by which process does this net flow of water occur?
- A.
Out of the cell; osmosis
- B.
Into the cell; osmosis
- C.
Out of the cell; active transport
- D.
Into the cell; active transport
.png "The diagram shows a cell membrane composed of a phospholipid bilayer with a channel protein. Each x represents the same type of molecule inside or outside the cell. Facilitated diffusion moves these molecules across the cell membrane.In what direction do these molecules move and through which structure?")
.png "Refer to the illustration above. The process shown is called")
Questions: 14 | Attempts: 886 | Last updated: Dec 12, 2017
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