What is the source of new material for the plasma membrane?
A) microtubules
B) mitochondria
C) rough endoplasmic reticulum
D) ribosomes
E) Golgi apparatus
E
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The muscle known as the diaphragm separates the ________ from the ________
A) pleural cavity; mediastinum B) thoracic cavity; abdominopelvic cavity C) pericardial cavity; pleural cavity D) abdominal cavity; pelvic cavity E) pericardial sac; pericardial cavity
The tetralogy of Fallot is
A. occlusion of the left coronary artery. B. an exceptionally fast heart rate. C. a developmental disorder that is a cardiac septal defect. D. a condition in which the left and right sides of the heart are completely reversed. E. an inadequate cardiac output due to poorly contracting heart chambers.
The posterior pituitary hormone that is crucial for milk ejection is
A. LH. B. GnRH. C. oxytocin. D. prolactin. E. progesterone.
Which of the following statements about the nephron is false?
A) The epithelial cells of the proximal tubule have numerous microvilli. B) The wall of the ascending limb of the loop of Henle is described as "thick" or "thin" depending on the width of the tubule lumen. C) In the distal tubule, the most common epithelial cell type has few microvilli. D) Various regions of the nephron mediate different transport processes.