Biology Chapter 5 Quiz
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A quiz about raven biology chapter 5.
- 1.Which way do polar heads tend to orient?
- A.
Toward the water
- B.
Away from the water
- C.
Surface
- D.
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- 2.Why is the bi-layer stable?
- A.
Water's afinity for hydrogen bonding never stops.
- B.
Hydrogen's afinity for water bonding never stops.
- C.
The amount of water and hydrogen are equal.
- D.
The sharing of electrons.
- 3.What is the plasma membrane composed of?
- A.
Ribosones and lipids
- B.
Nucliec acids and lipids
- C.
Nuclues and mondocondria
- D.
Lipids and globular proteins.
- 4.Which of the following is a component of the cell membrane?
- A.
Phosopholipid bilayer
- B.
Transmembrane proteins
- C.
Golgi apparatus
- D.
Ribosomes
- E.
Nucleus
- 5.Which of the following are membrane transport proteins?
- A.
Transporters, attachments to cytoskeleton
- B.
Enzymes
- C.
Cell surface idenitity markers.
- D.
Cell adhesion proteins
- E.
All of the above.
- 6.The membrane protein structure is: multiple-pass anchors, single pass chanels and carries, and pores.
- A.
True
- B.
False
- 7.Diffusion is:
- A.
The adding of a water molecule to an atom.
- B.
The removing of a water molecule to an atom.
- C.
The net movement of substances to go from regions of high concentration to low concentration.
- D.
The net movement of substances to go from regions of low concentration to high concentration.
- 8.Cell transport channels are selectively permeable. How so?
- A.
Only certain molecules can enter, but are not released.
- B.
Only certain molecules can exit and are released.
- C.
Only certain molecules can enter and exit.
- D.
Only certain molecules can enter.
- 9.Ions can move between the cytoplasm of a cell and the extracellular fluid without the assistance of membrane transport proteins.
- A.
True
- B.
False
- 10.What transports ions and other solutes across the plasma membrane?
- A.
Carriers
- B.
Folder Proteins
- C.
Chaperone proteins
- D.
Wat
- 11.How do carriers facilitate movement?
- A.
Physically binding molecules on one side of the membrane, and releasing them on the other.
- B.
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- 12.What is the tendencies of a molecule to go from a region of lower concentration to a higher one?
- A.
Osmosis
- B.
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- 13.What is hyposmotic?
- A.
- 14.What is Isomatic?
- A.
Soluton with the higher solute concentration.
- B.
Soluton with the lower solute concentration.
- C.
Solutons are equal.
- 15.Osmotic pressure is:
- A.
- 16.Hydrostatic pressure is:
- A.
- 17.To which of the following are hyposmotic solutions?
- A.
Extrusion
- B.
Turgor
- C.
Isomotic solutions
- D.
Osmotic solutions
- E.
None of the above.
- 18.What is endocytosis?
- A.
Discharge of materials from vesicles at the cell surface.
- B.
Material taken in is in liquid form.
- C.
Material taken in is in particulate form.
- D.
Enveloping food
- 19.What is phagacytosis?
- A.
Enveloping food
- B.
Material taken in is in particulate form.
- C.
Material taken in is in liquid form.
- D.
Discharge of materials from vesicles at the cell surface.
- 20.What is pinocytosis?
- A.
Discharge of materials from vesicles at the cell surface.
- B.
Material taken in is in liquid form.
- C.
Material taken in is in particulate form.
- D.
Enveloping food
- 21.What is exocytosis?
- A.
Enveloping food
- B.
Material taken in is in particulate form.
- C.
Material taken in is in liquid form.
- D.
Discharge of materials from vesicles at the cell surface.
- 22.What is receptor-mediated?
- A.
Material taken in is in liquid form.
- B.
Discharge of materials from vesicles at the cell surface.
- C.
Transport of speficic molecules.
- D.
Enveloping food
- 23.What is active transport and what does it involve??
- A.
Involves the expenditure of energy to move substances against their concentration gradient
- B.
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