Nitric oxide is one of three gaseous chemical messengers and is produced by the enzyme __________
Fill in the blank with the correct word.
Answer: Nitric oxide synthase (NOS)
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Following strenuous exercise, blood levels of lactic acid are ________ compared to pre-exercise levels. This change in acid concentration causes a reflex ________ in ventilation by activating ________.
A. increased; increase; central chemoreceptors B. increased; increase; peripheral chemoreceptors C. decreased; decrease; peripheral chemoreceptors D. decreased; decrease; central chemoreceptors E. increased; increase; baroreceptors in the aortic arch
In adipose tissue, fat molecules form when fatty acid molecules and glycerol join by
hydrolysis. Indicate whether the statement is true or false
Which of the following vitamins is mismatched with its function?
A. Folate - synthesis of clotting factors B. Vitamin C - collagen synthesis C. Vitamin A - rhodopsin synthesis D. Vitamin B12 - red blood cell production E. Vitamin D - bone growth
Which type of bone cell gives rise to osteoblasts?
A. Osteocyte B. Osteochondral progenitor cell C. Osteoclast D. Osteoblast