some test

Exam 1 (Version = JAN) - EEOB 232 on 7 October 2008 Name: ___________________________

On the bubble sheet, using a number two pencil, completely fill in the circle corresponding to the best option
of the choices provided. Repeat your selection for the following even number.

NOTE: This side of the page contains the knowledge, comprehension and application questions. The other
side of the page contains the more challenging questions (analysis, synthesis, evaluation).

1. Which of the following is NOT a connective cell?
A. Bone cell
B. Red-blood cell
C. Fat cell
D. Epithelial cell

3. When a _____ ligand binds to a membrane-bound receptor, _______ always occurs in the receptor
A. Lipophobic - a conformation change
C. Lipophobic - the ion channel opening
B. Lipophilic - a conformation change
D. Lipophilic - the ion channel opening

5. Which is a correct statement about the levels of cellular organization?
A. Connective cells initiate and conduct electrical signals
B. The four tissue types are each composed of multiple cell types
C. The functional units of organs are within the extracellular fluid
D. The extracellular matrix cannot transmit information

7. Diffusion is _____ related to _____.
A. Inversely - permeability
C. Directly - surface area of interface
B. Inversely - concentration gradient
D. Directly - distance

9. Intracellular receptors
A. Have hydrophilic ligands
C. Are located only in the nucleus
B. Have a binding protein for the receptor
D. Always alter DNA transcription

11. In the plasma membrane, the _____ allows for identification and interaction.
A. Glycocaylx
B. Cholesterol
C. Amphipathics
D. Peripheral proteins

13. Which is a correctly ordered series of immediately adjacent steps in the reflex arc?
A. Receptor afferent pathway
C. Efferent pathway integrating center
B. Integrating center afferent pathway
D. Afferent pathway effector

15. Osmotic pressure results from
A. An impermeable membrane
C. Movement of water toward higher [water]
B. An immobile membrane
D. Movement of water toward lower [solute]

17. Free radicals
A. Have an unpaired electron in their inner orbit
C. Are ineffective at destroying pathogens
B. Remove an electron from another atom
D. Are created by donors like Vitamin A

19. What is the osmolarity of a 1 L solution of 3 mol NaCl and 3 mol glucose?
A. 9
B. 6
C. 4.5
D. 3

21. The chemical signal _______ moves through the pathway that is the _____ fluid compartment.
A. Paracrine - largest

C. Paracrine - smallest
B. Endocrine - largest

D. Endocrine - smallest

23. Which is a reactant in the overall cellular metabolic pathway reaction?
A. ADP
B. Water
C. Heat
D. Carbon dioxide

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25. Steady state
A. Is regained by negative feedback
C. Requires no energy input from the body
B. Is when the system is at equilibrium
D. All three statements are correct about steady state

27. The three signals discussed in lecture could have ____ combined with ____ since ____ can release both
signals.
A. Endocrines - paracrines - effectors
B. Paracrines - autocrines - neurons
C. Neurotransmitters - endocrines - neurons
D. Neurotransmitters - paracrines - effectors

29. You and a friend find yourselves lost in the Atlantic Ocean without any drinking water. Your friend
wants to drink the salty seawater but you correctly advise against that choice. Since the seawater is ____,
it will cause the person who drinks it to become _____.

A. Hypertonic - dehydrated (i.e., lack of water)
C. Hypotonic - dehydrated (i.e., lack of water)

B. Hypertonic - bloated (i.e., excess of water)
D. Hypotonic - bloated (i.e., excess of water)

31. A transmembrane ______ protein must have at least two sections that are _____.
A. Integral - lipophobic

C. Peripheral - lipophobic
B. Integral - hydrophobic
D. Peripheral - hydrophobic

33. When forced to produce energy anaerobically, a cell will have
A. Glycolysis produce lactate
B. Krebs cycle stop because the coenzymes are not available
C. Cell metabolism pathways in the mitochondria shut down
D. All three of these things will occur under anaerobic conditions

35. To block a pain signal transduction pathway, a drug company should design an ________ that has a
higher ________ with the receptor than the natural ligand.
A. Antagonist - affinity

C. Antagonist - specificity
B. Agonist - affinity

D. Agonist - specificity

37. Which is a correct statement about long-term regulation of homeostasis?

A. Adaptations occur at the individual level

B. Developmental acclimatization is reversible

C. Circadian rhythms are internally triggered

D. All three statements are correct about long-term regulation of homeostasis

39. The hydrolysis of ATP causes the Na+/K+-ATPase pump to open toward the _____ of the cell and the
delivery of ____ to that side.
A. Inside - K+
B. Outside - K+
C. Inside - Na+
D. Outside - Na+


REMINDERS - Make sure on your Scantron that you have:
- Your name is entered and bubbled in with your last name first then your first name
- Your version (JAN, JUN or DEC) is entered as your "month of birth" (found at the top of the front page)
- You have signed your name in the "Identification number" area
- You have NOT put your Social Security Number on the Scantron (You will fail the exam)
- You have filled in TWO bubbles (i.e., the questions number and next even number) for each question
(the key is a series of 21 pairs of responses - AABBCCDDAABB ...)

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