The electron transport system is located in the ________ and includes enzymes and iron-containing proteins known as ________.
Fill in the blank(s) with the appropriate word(s).
inner mitochondrial membrane, cytochromes
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Viagra is a drug used to treat erectile dysfunction by dilating arteries in the penis. The neurotransmitter that Viagra affects is
A. histamine. B. acetylcholine. C. serotonin. D. nitric oxide.
The stimulus that directly triggers release of ANP is
A. decreased pressure detected by baroreceptors in the aorta and carotid arteries. B. increased stretch of the heart atria. C. increased saltiness in the cerebrospinal fluid bathing the hypothalamus of the brain. D. increased saltiness of tubular fluid in the proximal convoluted tubule.
The master gland that acts in response to stimuli from the hypothalamus is the:
A) thyroid B) pituitary C) pineal D) parathyroid
The minimal waking rate of energy expenditure determined under standardized conditions is known as the ____________________
Fill in the blank(s) with correct word