Which of the following is present in normal urine?
A) albumin B) nitrites C) urobilinogen D) bilirubin
Answer: C
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Carrier-mediated transport
a. involves a specific membrane protein that serves as a carrier molecule. b. always moves substances against a concentration gradient. c. always requires energy expenditure. d. two of these answers. e. all of these answers.
Protein digestion is initiated by salivary amylase
Indicate whether the statement is true or false
What is the function of the intrinsic muscles of the tongue?
A. sticking the tongue out B. moving the tongue side to side C. changing the tongue shape during swallowing D. retracting the tongue
An important characteristic of urine is its specific gravity or density, which is ________.
A) 1.041-1.073 B) 1.001-1.035 C) 1.030-1.040 D) 1.000-1.015