Biology Test
9 Questions
| Total Attempts: 1712
Chapter 5 Biology Test
Questions and Answers
- 1.A cell can keep its necessary balance only within limits of _______________ changes.
- A.
Organism
- B.
Muscle
- C.
Environmental
- D.
Membrane
- 2.Homeostasis involves the processes that keep a certain range of concentration of substances. The concentration of substances is not the same for a cell, tissue fluid, and blood.
- A.
True
- B.
False
- 3.When a substance passes through a membrane, the membrane is ________ to that substance.
- A.
Selectively permeable
- B.
Permeable
- C.
Diffused
- 4.The gradual, even spreading out of molecules is known as
- A.
Particles
- B.
Molecules
- C.
Diffusion
- D.
Plasma
- 5.Substances diffuse from areas of lesser concentration to areas of greater concentration.
- A.
True
- B.
False
- 6.What is osmosis?
- A.
Concentration of water
- B.
Diffusion of water
- C.
Gravity of water
- D.
None of the above
- 7.The _________ helps to keep a water-balance in the cells.
- A.
Contractile vacuoles
- B.
Hypotonic
- C.
Turgor pressure
- D.
Plasmolysis
- 8.A cell has no control over osmosis.
- A.
True
- B.
False
- 9.When the plasma membrane moves molecules against diffusion pressure, energy is needed. This is called _________.
- A.
Lower transport
- B.
Hypothesis
- C.
Endocytosis
- D.
Active transport
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