What is the definition of a prohormone?
A. Hormones that bind to endocrine glands and stimulate the secretion of a second hormone.
B. Hormones that bind to endocrine glands and inhibit the secretion of a second hormone.
C. A longer protein or peptide that is cleaved into shorter ones, at least one of which is a peptide or protein hormone.
D. Hormones that stimulate the expression of receptors for a second hormone, promoting their action.
E. Steroid hormones that are inactivated by having hydroxyl groups removed from their structure.
C
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The formation of a web-like polymer of fibrin occurs late in the ________ pathway
A. common B. extrinsic C. intrinsic
Thrombopoietin is produced in the
A) liver only. B) bone marrow only. C) kidney only. D) liver and kidney. E) spleen only.
The site of muscle attachment that moves during contraction is called the.
Compounds classified as __ after synaptic transmission by changing neurotransmitter receptor numbers or affecting the breakdown and/or release of neurotransmitter.
Fill in the blank(s) with the appropriate word(s).