When analyzing amylase activity in the lab, how is the amylase denatured?
A) By mixing it with hydrochloric acid
B) By mixing it with alcohol
C) By freezing it
D) By boiling it
Answer: D
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If the cardiac output is 4,800 ml/min and the heart rate is 60 beats per minute, the stroke volume averages ____ ml
a. 60 b. 70 c. 80 d. 120 e. 140
The study of the external form of the body and its relationship to deeper structures is ________.
A. systemic anatomy B. microbiology C. surface anatomy D. molecular biology E. regional anatomy
Chemoreceptors located in the carotid bodies and aortic arch sense minute changes in the ______ and send signals to the respiratory centers via the _______________ nerves.
A) PaO2, vagus and intercostal B) PaCO2, glossopharyngeal and vagus C) PaCO2, phrenic and glossopharyngeal D) PaO2, hypoglossal, vagus, and intercostal
Which of the following is NOT a result of the LH surge that occurs in the middle of the menstrual cycle?
A. The primary oocyte completes its first meiotic division. B. Antrum size (fluid volume) and blood flow to the follicle increase markedly. C. The granulosa cells begin releasing progesterone and decrease their release of estrogen. D. Enzyme and prostaglandin synthesis by the granulosa cells increases, breaking down the follicular membranes. E. The corpus luteum stops secreting hormones and degenerates.