Which of the following substances are found in the secretions of the prostate gland?
A. Prostaglandins and sperm cells
B. Fibrinolysin and clotting factors
C. Mucus and fibrinogen
D. Acid and mucus
E. Fructose and mucus
Answer: B
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The enzyme ________ resides in the synaptic cleft and breaks down molecules of Ach.
Fill in the blank(s) with the appropriate word(s).
Specificity is an important characteristic of intercellular communication; which of these best explains how it occurs?
A. The phospholipid composition of the plasma membrane differs among cells. B. Protein receptors are only located on the surface of target cells. C. All cells have the same DNA, so any cell can express protein receptors for a specific chemical. D. Chemical messengers are all proteins, so bind only to receptors that are proteins. E. Protein receptors for chemical messengers are only expressed in specific target cells.
Why should the hypothalamus instead of the anterior pituitary be called the "master endocrine gland?"
What will be an ideal response
What is the total body water (TBW) content of a 70 kg young male?
A) 60 L B) 10 L C) 70 L D) 40 L E) 20 L