What is the action of luteinizing hormone (LH)?
A) LH stimulates the secretion of interstitial-cell stimulating hormone (ICSH).
B) LH stimulates the sustentacular cells of the testes to secrete androgen-binding protein (ABP).
C) LH stimulates the secretion of inhibin.
D) LH stimulates interstitial cells of the testes to produce testosterone.
Answer: D
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In brown adipose tissue, thermogenin inserts into the inner mitochondrial membrane and serves to
A) Uncouple oxidation from phosphorylation. B) Enhance the proton motive force. C) Eliminate two of the steps of electron transport. D) More than one of the above
Which of the following does not respond to cell-mediated immunity?
A) intracellular pathogens that reside within host cells B) some cancer cells C) foreign tissue transplants D) pathogens in the CNS
Match the regional/directional terms and examples:
A) Anterior B) Superior C) Distal D) Medial E) Proximal 1) The bridge of the nose is ________ to the left eye. 2) The upper arm is ________ to the forearm. 3) The heart is ________ to the stomach. 4) The fingers are ________ to the wrist. 5) The stomach is ________ to the spine.
A _____ pathway will begin with a substrate, pass through intermediate reactions, and end with a product
Fill in the blank(s) with the appropriate word(s).