Which of the following substances is normally NOT found in urine?
A. Glucose
B. Ammonia
C. Urea
D. Potassium
Answer: A
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Which of the following epithelia forms the walls of the air sacs across which gas exchange occurs in the lungs?
A) simple columnar B) simple squamous C) simple cuboidal D) pseudostratified columnar
Match the symptoms to the problem.
1. Ménière's disease 2. tinnitus 3. central hearing loss 4. sensorineural hearing loss 5. conductive hearing loss A. damage to the cerebral cortex B. degeneration of hair cells C. ringing in the ears D. dizziness and nausea E. problems with structures of the middle ear
Compliment-binding sites are located on:
a. antigens b. antibodies c. B cells d. T cells
Which of the following statements about the different types of muscle fibers is incorrect?
a. The higher the ATPase activity, the faster the speed of contraction. b. Muscles with a high glycolytic capacity and large glycogen stores are more resistant to fatigue. c. Muscles with high ATP-synthesizing ability are more resistant to fatigue. d. Oxidative types of muscle fibers contain myoglobin. e. Muscle fibers containing large amounts of myoglobin have a dark red color in comparison to the paler fibers, which have little myoglobin.