After spraining your finger in a research paper-related mishap, you manage to submit your files with seconds to spare, so you decide to wind down by watching your favorite cartoon. In this episode, the main characters take up boxing, but they’re terrible at it; they spin their arms in wide circles centered around their shoulder joints. What term describes this pin wheeling motion?
a. hyperextension
b. adduction
c. circumduction
d. dorsiflexion
c. circumduction
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Indicate whether the statement is true or false
Titration of valine by a strong base, for example NaOH, reveals two pK's. The titration reaction occurring at pK2 (pK2 = 9.62) is:
A) —COOH + OH? ? —COO? + H2O. B) —COOH + —NH2 ? —COO? + —NH2+. C) —COO? + —NH2+ ? —COOH + —NH2. D) —NH3+ + OH? ? —NH2 + H2O. E) —NH2 + OH? ? —NH? + H2O.
Long nephron loops correlate with
A) urine isotonic to the blood. B) more concentrated urine. C) urine with glucose in it. D) urine hypotonic to the blood. E) more dilute urine.
What is a pyrimidine dimer?
A) A hydrogen bond between adjacent pyrimidines B) An electrostatic bond between adjacent pyrimidines C) An ionic bond between adjacent pyrimidines D) A covalent bond between adjacent pyrimidines