Tutor profile: Caitie C.
A 9-year-old boy presents to the office with dark brown urine for 2 days. He otherwise healthy feels fine, although his mother notes that his eyes have looked "puffy". She also notes that he was treated with antibiotics for strep pharyngitis 2 weeks ago. Urinalysis shows 3+ blood but no protein or casts. What treatment is required for the most likely diagnosis?
No treatment -- most likely post-streptococcal glomerulonephritis, a self-limited disease
Describe the role of enzymes in biological reactions
Enzymes are proteins that act as catalysts to biological reactions. They are found in all matters of life, from bacteria to human beings. They increase the rate of reactions by lowering the activation energy of a reaction, that is, the amount of energy that needs to be put into a reaction in order for it to occur.
5x + 2(x + 7) = 14x – 7. Find x
5x + 2(x + 7) = 14x – 7 5x + 2x + 14 = 14x - 7 (Distributive property) 7x + 14 = 14x - 7 (Combine like variables) 7 = 7x x = 1
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