Analysis of a glandular secretion indicates that it contains some DNA, RNA, and membrane components such as phospholipids. What mechanism of secretion does this indicate, and why?
What will be an ideal response?
The presence of DNA, RNA, and membrane components suggests that the cell was destroyed during the process of secretion. This is consistent with a holocrine type of secretion
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A coroner examined the heart of an elderly man. Which finding will convince the coroner that the person died of a severe heart attack?
A) Cardiac halitosis B) Cardiac mitosis C) Cardiac neurosis D) Cardiac necrosis
The pancreas is the primary site of digestive enzyme production
Indicate whether the statement is true or false
The major body parts derived from endoderm are the epithelial lining of
A) all of the above. B) the digestive tract. C) the urinary bladder. D) the respiratory tract.
Which muscle decreases the volume of the thoracic cavity to promote expiration?
A. External intercostal B. Diaphragm C. External oblique D. Internal intercostal