Prior to the joining (fusion) of the nuclei of the sperm and egg to form a zygote, each nucleus is referred to as a
A. mononucleus.
B. pronucleus.
C. gametocyte.
D. prenucelus.
Answer: B
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What is the path of blood flow from the heart to the lung tissues and back to the heart?
A. Left ventricle ? aorta ? bronchial arteries ? lung tissues ? bronchial veins ? azygos vein ? superior vena cava ? right atrium B. Left ventricle ? aorta ? brachiocephalic artery ? lung tissues ? bronchial veins ? brachiocephalic vein ? superior vena cava ? right atrium C. Right ventricle ? pulmonary trunk ? pulmonary arteries ? lung tissues ? pulmonary veins ? left atrium D. Right ventricle ? brachiocephalic arteries ? lung tissues ? brachiocephalic veins ? inferior vena cava ? left atrium
At a heart rate of 60 beats/minute, a cardiac cycle lasts
A) 60 seconds. B) less than a second. C) 1 second. D) 370 milliseconds. E) more than a second.
Name the lobes of the liver
A) superior, inferior, anterior, and posterior B) superior, inferior, medial, and lateral C) superior, inferior, right, and left D) anterior, posterior, caudate, and quadrate E) right, left, caudate, and quadrate
Regulatory proteins are degraded outside of lysosomes by binding to ________ and then broken down by the proteasome.
A. lysosomes B. ribosomes C. chaperones D. ubiquitin