Facilitated diffusion requires energy expenditure
Indicate whether the statement is true or false
F
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Angiotensin-converting enzyme (ACE) inhibitors like captopril block the formation of angiotensin II, thus reducing ________.
A. vasodilation B. vasoconstriction C. renal excretion D. renal reabsorption
What ion is sometimes used as a second messenger of amino acid-based hormones?
A) sodium B) calcium C) iron D) chlorine
Which of the following is characteristic of cilia?
A. They move substances in any direction across cell surfaces. B. They are substantially longer than flagella, and are most easily seen in human sperm cells. C. They are used for cellular adhesion. D. They are whiplike, motile cellular extensions that occur in large numbers on the exposed surfaces of certain cells.
During pregnancy, many health risks pose an even greater threat to ________________________________________
Fill in the blank(s) with correct word