Which cells aid in the body's defense processes by secreting histamine and heparin?
A. Basophils
B. Eosinophils
C. Platelets
D. Neutrophils
E. Monocytes
Answer: A
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What's the storage form of excess circulating amino acids not immediately needed?
a. protein b. polypeptides c. triglycerides d. glycogen e. enzymes
Extension increases the angle of bones
a. True b. False Indicate whether the statement is true or false
Keto-acids are produced from amino acids through ________.
A. beta-oxidation B. phosphorylation C. transamination D. oxidative deamination
How does the urinary system contribute to osteoporosis?
A. Calcium ions released from the bones are excreted as part of urine. B. Excessive smoking lowers calcitriol levels, which decreases bone loss. C. Decreased estrogen levels following menopause contribute to the disease. D. Lack of exposure to sunlight increases vitamin D production at the kidneys and decreases calcium absorption. E. Immune cells of the kidneys absorb excess calcium under the direction of PTH.