When NAD+ becomes NADH, it is being
A. reduced and gaining chemical energy.
B. reduced and releasing chemical energy.
C. oxidized and gaining chemical energy.
D. oxidized and releasing chemical energy.
A
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The irregular surface of the lungs that contains the hilum is called the
A) base of the lung. B) diaphragmatic surface. C) mediastinal surface. D) costal surface. E) root of the lung.
Which of the following hormones would not be water-soluble?
What will be an ideal response?
A patient goes to her doctor, complaining of fatigue, weight gain, and intolerance to cold. She also has a noticeable goiter in her neck. Which of the following is a most likely diagnosis and cause?
A. She has hypothyroidism, possibly due to destruction of thyrotrope cells of her anterior pituitary gland. B. She has hyperthyroidism, possibly due to Graves' disease. C. She has hypothyroidism, possibly due to low iodine in her diet. D. She has hyperthyroidism, possibly due to a hypersecreting tumor of the anterior pituitary gland.
Callie is a world class marathon runner. Which of the descriptions about her dominant type of skeletal muscle is FALSE?
A. They have a well-developed blood supply. B. They are well adapted to anaerobic activity. C. They split ATP slowly. D. They have low glycogen stores. E. They have large deposits of myoglobin.