Barbara has the disease gout. The inflammation and pain in her joints is due to excess ________ in her plasma, which leads to crystal deposits in her great toe joint.
A. calcium ions
B. uric acid
C. urea
D. amino acids
Answer: B
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To defend blood volume against dehydration, the body
A) reduces reabsorption of water at the kidneys. B) experiences an increase of interstitial fluids. C) experiences a decrease in the blood colloidal osmotic pressure. D) releases antidiuretic hormone (ADH). E) releases atrial natriuretic peptide.
Answer the following statements true (T) or false (F)
1. In a dehydration synthesis reaction, water is always a product. 2. In dehydration synthesis reaction, smaller reactants are joined to form a larger product. 3. In the process of hydrolysis, a molecule of water is broken down to hydrogen and oxygen. 4. In hydrolysis, water is used to break the bonds of a larger molecule and convert it to smaller molecules. 5. In a hydrolysis reaction, water is always an end product.
The figure illustrates changes in the membrane potential during an action potential. What does "A" represent?
A. Afterpotential B. Threshold C. Depolarization D. Local potential E. Repolarization
Which nerve arises from the sacral plexus?
A) Musculocutaneous nerve B) Axillary nerve C) Sciatic nerve D) Femoral nerve