GMS 6440 Quiz Review
Study online at https://quizlet.com/_hv8u2g
1. Cardiac muscle contraction is considered to be voluntary movement.: False, it
moves involuntarily
2. In the gastrointestinal tract, smooth muscle is enriched.: True
3. In our body, approximately 8 liters of intestinal juices are secreted into the GI
tract daily, but only 100 ml of water is secreted into the feces.: True
4. Normal movement of blood flow in the heart is: left atrium-left ventri-
cle-lung-right atrium-right ventricle.: False. Right atrium-right ventricle-lung-left atrium-left ventricle
5. Normally, humans have 2 lobes in the right lung and 3 lobes in the left
lung.: False. 3 lobes in the right lung and 2 lobes in the left lung.
6. In the lung, gas exchange occurs mostly at the alveoli.: True
7. The urinary system is normally composed of two kidneys, two ureters and two
bladders.: False. Two kidneys, two ureters and one bladder.
8. Filtered wastes from the glomerulus will move in the following order: Bow-
man's capsule-proximal tubule-distal tubule-loop of Henle-collecting duct.: False.
Bowman's capsule-proximal tubule- loop of Henle-distal tubule-collecting duct.
9. Both endocrine and nervous systems play important roles in controlling the
activities of many different organ systems to maintain homeostasis.: True
10. Specificity of hormone action in the target cells is determined by receptors.-
: True
11. The area of nerve axon not wrapped by myelin sheath (non-myelinated area)
is called nodes of Ranvier where action potential is insulated.: False. Myelin sheath
insulates action potential. Action potential propagates faster by skipping myelinated axon, and jumping from nodes of
Ranvier to another node.
12. What chemical component of the plasma membrane prevents ions from
readily and freely moving across the membrane?: Lipids (phospholipids)
13. Where is the concentration of [K+] greater:: Cytoplasm
14. Across a cell's plasma membrane, movement of water is _______________.: pas-
sive through a channel
15. Where is the concentration of [Na+] greater:: in the extracellular fluid
16. For a neutrally charged molecule, "Active" transport means that the mole-
cules move across a membrane:: from low concentration to high concentration
1/5
, GMS 6440 Quiz Review
Study online at https://quizlet.com/_hv8u2g
17. What molecule is the source of energy for primary active transport to occur?-
: ATP (adenosine triphosphate)
18. There is only one type of channel in cell membranes.: False
19. Regarding primary active transport, solutes move from a compartment of
low concentration to a compartment of high concentration.: True
20. Regarding secondary active transport of glucose, the movement of glucose
is from a compartment of high concentration to a compartment of low concen-
tration.: False
21. All transport through membrane channels is classified as "Active" transport.-
: False
22. Electrolytes are pumped and leak across cell membranes simultaneously but
independently.: True
23. At what point in time does the electrochemical equilibrium potential exist?: At
equilibrium
24. What is a major factor that regulates an electrolyte's electrochemical equi-
librium potential across a cell membrane?: Concentration (chemical) gradient
25. The electrochemical equilibrium potential for a single highly permeant ion
species is controlled by the concentration gradient.: True
26. Movement of a charged electrolyte is determined by the major forces of
voltage plus chemical concentration gradients: True
27. The cellular K+ Electrochemical Equilibrium Potential is regulated by concen-
tration differences across plasma membranes.: True
28. Which of these ion choices is primarily responsible for establishing a typical
cell membrane's "resting" potential?: K+
29. Excessive extracellular acid (i.e., [H+] ) will raise the concentration of extra-
cellular potassium ion concentration.: True
30. Cell Membrane Potential is controlled by the relative degree of ion perme-
ability as well as ion concentration gradients existing across a cell's plasma
membrane.: True
31. Rhabdomyolysis can lead to cardiac muscle cell pathology as the result
of creating a condition of hyperkalemia (excessive K+ concentration in the
plasma).: True
2/5
Study online at https://quizlet.com/_hv8u2g
1. Cardiac muscle contraction is considered to be voluntary movement.: False, it
moves involuntarily
2. In the gastrointestinal tract, smooth muscle is enriched.: True
3. In our body, approximately 8 liters of intestinal juices are secreted into the GI
tract daily, but only 100 ml of water is secreted into the feces.: True
4. Normal movement of blood flow in the heart is: left atrium-left ventri-
cle-lung-right atrium-right ventricle.: False. Right atrium-right ventricle-lung-left atrium-left ventricle
5. Normally, humans have 2 lobes in the right lung and 3 lobes in the left
lung.: False. 3 lobes in the right lung and 2 lobes in the left lung.
6. In the lung, gas exchange occurs mostly at the alveoli.: True
7. The urinary system is normally composed of two kidneys, two ureters and two
bladders.: False. Two kidneys, two ureters and one bladder.
8. Filtered wastes from the glomerulus will move in the following order: Bow-
man's capsule-proximal tubule-distal tubule-loop of Henle-collecting duct.: False.
Bowman's capsule-proximal tubule- loop of Henle-distal tubule-collecting duct.
9. Both endocrine and nervous systems play important roles in controlling the
activities of many different organ systems to maintain homeostasis.: True
10. Specificity of hormone action in the target cells is determined by receptors.-
: True
11. The area of nerve axon not wrapped by myelin sheath (non-myelinated area)
is called nodes of Ranvier where action potential is insulated.: False. Myelin sheath
insulates action potential. Action potential propagates faster by skipping myelinated axon, and jumping from nodes of
Ranvier to another node.
12. What chemical component of the plasma membrane prevents ions from
readily and freely moving across the membrane?: Lipids (phospholipids)
13. Where is the concentration of [K+] greater:: Cytoplasm
14. Across a cell's plasma membrane, movement of water is _______________.: pas-
sive through a channel
15. Where is the concentration of [Na+] greater:: in the extracellular fluid
16. For a neutrally charged molecule, "Active" transport means that the mole-
cules move across a membrane:: from low concentration to high concentration
1/5
, GMS 6440 Quiz Review
Study online at https://quizlet.com/_hv8u2g
17. What molecule is the source of energy for primary active transport to occur?-
: ATP (adenosine triphosphate)
18. There is only one type of channel in cell membranes.: False
19. Regarding primary active transport, solutes move from a compartment of
low concentration to a compartment of high concentration.: True
20. Regarding secondary active transport of glucose, the movement of glucose
is from a compartment of high concentration to a compartment of low concen-
tration.: False
21. All transport through membrane channels is classified as "Active" transport.-
: False
22. Electrolytes are pumped and leak across cell membranes simultaneously but
independently.: True
23. At what point in time does the electrochemical equilibrium potential exist?: At
equilibrium
24. What is a major factor that regulates an electrolyte's electrochemical equi-
librium potential across a cell membrane?: Concentration (chemical) gradient
25. The electrochemical equilibrium potential for a single highly permeant ion
species is controlled by the concentration gradient.: True
26. Movement of a charged electrolyte is determined by the major forces of
voltage plus chemical concentration gradients: True
27. The cellular K+ Electrochemical Equilibrium Potential is regulated by concen-
tration differences across plasma membranes.: True
28. Which of these ion choices is primarily responsible for establishing a typical
cell membrane's "resting" potential?: K+
29. Excessive extracellular acid (i.e., [H+] ) will raise the concentration of extra-
cellular potassium ion concentration.: True
30. Cell Membrane Potential is controlled by the relative degree of ion perme-
ability as well as ion concentration gradients existing across a cell's plasma
membrane.: True
31. Rhabdomyolysis can lead to cardiac muscle cell pathology as the result
of creating a condition of hyperkalemia (excessive K+ concentration in the
plasma).: True
2/5
