The "lub" sounds of the heart are valuable in diagnosis because they provide information about the function of the heart's pulmonary and aortic semilunar valves
Indicate whether the statement is true or false
FALSE
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FAD and NAD+ are examples of nucleotides
Indicate whether this statement is true or false.
When oxygen is low, pyruvate is converted to lactate, while
A. NADH is converted to NAD+. B. ATP is converted to AMP. C. citrate is converted to pyruvate. D. FADH is converted to NADH. E. FADH2 is reduced to FAD+.
Which of the following statements concerning iron is incorrect?
a. iron is found in the heme portion of the hemoglobin molecule. b. iron is converted into bilirubin upon erythrocyte degradation. c. iron readily combines reversibly with O2. d. diets deficient in iron can lead to anemia. e. iron is not adequately absorbed from the digestive tracts in pernicious anemia.
Osteogenic cells are bone stem cells that differentiate into osteoblasts and osteoclasts.
Answer the following statement true (T) or false (F)