Which of these is an example of active transport?
A) Facilitated diffusion of K+
B) Diffusion of oxygen from a place of high concentration to a place of lower concentration
C) Transport of Na+ from a place of low concentration to a place of higher concentration
D) Transport of glucose down its concentration gradient
E) Transport of Cl- following its concentration gradient
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Question 2) A patient enters a hospital after a motorcycle accident. He complains of mid-back pain. X-rays reveal both rib and pelvic fractures. His emergency room examination includes urinalysis.
Which of the following findings from the urinalysis would most likely suggest trauma to the kidneys from the accident, but not to the urinary bladder?
A) Phenylketonuria
B) Uremia
C) Pyuria
D) Albuminuria
E) Hematuria
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Question 3) Which of the following does not explain why people on weight-loss diets often lose weight quickly at first, but then more slowly over time?
A) The initial weight loss is mostly fat.
B) As a diet progresses, the body produces more fat even with the same caloric intake.
C) Will power often weakens as the diet progresses.
D) Water is lost quickly but other weight is harder to lose.
E) The body lowers its metabolic rate when it loses weight.
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Question 4) Hypocalcemia can cause ________.
A) muscle weakness
B) muscle spasms
C) sluggish reflexes
D) emotional disturbances
E) depression of the nervous system
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Question 5) ________ pass(es) from the maternal blood to the fetal blood. Fetal ________ pass(es) the other way.
A) Oxygen and nutrients; wastes
B) Wastes and nutrients; oxygen and carbon dioxide
C) Wastes; nutrients and oxygen
D) Carbon dioxide; nutrients
E) Carbon dioxide and oxygen; wastes
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Question 6) The medial concavity of the kidney is called the ________, which admits the renal nerves, blood vessels, lymphatic vessels, and ureter.
A) hilum B) cortex C) medulla D) capsule E) corpuscle
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Question 7) The right atrioventricular valve (tricuspid) regulates the opening between the ________ and the ________.
A) right atrium; left ventricle
B) right atrium; right ventricle
C) left ventricle; right ventricle
D) left atrium; left ventricle
E) right atrium; left atrium
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Question 8) Acetylcholine (ACh) binds to both muscarinic and nicotinic receptors.
Indicate whether the statement is true or false
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Question 9) A patient was severely dehydrated, losing a large amount of fluid. The patient was given intravenous fluids of normal saline. Normal saline is ________ to your blood cells and is about ________ NaCl.
A) hypotonic; 0.9
B) hypotonic; 9
C) isotonic; 0.9
D) hypertonic; 9
E) isotonic; 9
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Question 10) When should the basal metabolic rate be measured?
A) When a person is engaged in normal physical activity but not strenuous exercise
B) When a person has just eaten a meal of no more than 2000 kcal
C) When a person first rises in the morning
D) When a person is sleeping
E) When a person is in the absorptive state
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