According to your text, the chemical that saves feedback information to the brain about the body's response to stress is _______.
A. serotonin
B. cortisol
C. dopamine
D. adrenaline
Answer: B. cortisol
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Narrowing of the arterial lumen due to buildup of lipids is:
a. atrial fibrillation b. atherosclerosis c. a blood clot d. arrhythmia e. angioplasty
An important role of the hormone oxytocin in reproduction is that it stimulates
A. meiosis. B. ovulation. C. implantation of the embryo. D. development of the fetal heart. E. contraction of uterine muscles during childbirth.
On a scientific expedition into new territory, you discover a previously undescribed organism living within the very
hot environment of a geyser. This organism has a cell wall, is single celled, heterotrophic, and has no true nucleus. In what kingdom would you most likely place this organism and why? What will be an ideal response?
How do proteins become embedded in the membrane of the endoplasmic reticulum?
A) by protein chaperones that insert polypeptides into the ER membrane B) by splicing of proteins on either side of the ER membrane C) via stop- and start-transfer sequences that stop and start translocation of a polypeptide through the ER membrane, resulting in transmembrane proteins D) by post-translational import can results in a transmembrane ER protein E) via transit sequences that target polypeptides made in the cytosol for the ER membrane