What will happen to an animal cell placed in a salt water solution?
21. The scientific method is a process for experimentation that is used to explore observations and answer questions. What is the first step in completing the scientific method?
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22. The second step to the scientific method is to state the “problem”, the scientific question to be solved. What is one requirement that needs to be fulfilled in order for the “problem” to be valid?
A. It needs to be a problem that has a number answer. B. It needs to be a problem that can be solved experimentally.
C. It needs to be a problem that has a yes or no answer.
23 A pattern or relationship that has been established based on a large amount of experimental data is A.
A. Theory
B. Hypothesis
C. Law
24. If the results of an experiment turn out differently from what you expected, then:
A. The experiment was a failure.
B. You should explore the possible reasons for this in the ‘conclusions’ section of your experimental write-up.
C. You need to redo your experiment until you get the expected result.
D. You didn’t follow the scientific method.
25. Which of the following is NOT a type of passive transport?
A. Diffusion
B. Osmosis
C. Endocytosis
D. Facilitated diffusion
26. Chamber A contains 40% helium and Chamber B contains 20% helium. Chambers are connected by a tube the molecules are free to cross. Which of the following will occur?
A. Some helium will move from chamber A to chamber B
B. Some helium will move from chamber B to chamber A
C. Helium will remain concentrated in chamber A
D. All of the helium will move into chamber B
27. What will happen to an animal cell placed in a salt water solution?
A. The cell will shrink
B. The cell will expand
C. The cell will burst
D. The cell will shrink and then expand and then shrink again
28. An animal cell placed in a hypotonic solution will:
A. Die
B. Take on water
C. Lose water
D. Divide
29. Which of the following is a type of active transport?
A. Sodium potassium pump
B. Endocytosis
C. Exocytosis
D. All of these
30. Active transport requires:
A. A concentration gradient
B. Osmosis
C. Energy
D. A hypertonic solution
31. The scientific discipline that investigates the body’s structure and shape is calleD.
A. Anatomy.
B. Embryology.
C. Endocrinology.
D. Histology.
E. Physiology.
32. Select the correct statement concerning the tissue level.
A. Tissues consist of groups of similar cells that have a common function.
B. The four basic tissue types (epithelial, connective, muscular, and neural) play a definite but different role in the body.
C. Two or more tissue types that performs a specific function for the body constitutes an organ
D. All of the above
33. The sum of all chemical reactions in the body is termed.
A. Homeostasis
B. Physiology
C. Dynamic feedback
D. Metabolism
34. A structure composed of two or more tissues is termed.
A. Organ
B. Serous membrane
C. Complex tissue
D. Organ system
35. The “basic unit of life” is:
A. The atom
B. Water
C. The cell
D. The chemical level of organization
36 . A group of cells of the same type form a(n):
A. Organ.
B. Organism.
C. Atom.
D. Tissue.
E. Organ system.
37. Which of the following best illustrates the increasing levels of complexity?
(1) Cells; (2) Organs; (3) Organelles; (4) Organism; (5) Tissues; (6) Organ systems
A. 1, 2, 3, 4, 5, 6.
B. 2, 4, 3, 5, 1, 6.
C. 4, 3, 5, 6, 1, 2.
D. 3, 1, 5, 2, 6, 4.
E. 1, 5, 3, 2, 6, 4.
38. Which of the statements below is untrue with respect to organ systems?
A. They can share organs with other systems.
B. They function together to ensure wellness of the organism.
C. They act independently of each other.
D. They are groups of organs with a common function.
39. Which of the following is NOT a necessary life function?
A. Maintaining boundaries.
B. Movement.
C. Thinking.
D. Responsiveness.
E. Reproduction.
40. The polymerase chain reaction (PCR) is used
A. To produce large numbers of identical DNA segments called gene probes.
B. Increase the amount of DNA to be searched in DNA sequencing procedures
C In water-quality tests
D. In HIV and HPV detection
E. To identify even poorly growing bacterial cultures
F. In all of the above
