Which of the following is true regarding endocrine glands?
A. They secrete substances that do not alter the metabolism of their target cells, but have extracellular effects.
B. They release their secretions into the blood.
C. They secrete their products by way of ducts.
D. They have an unusually low density of blood capillaries.
E. Their secretions may be released onto the body surface.
Answer: B
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Which of the following is NOT typically true about G proteins?
A. They can be inhibitory for second-messenger production. B. They can be stimulatory for second-messenger production. C. They act as second messengers. D. They can act as transducers for activated receptors by opening or closing ion channels.
During interphase, a cell rests.
Answer the following statement true (T) or false (F)
Frostbite results from peripheral _________ due to exposure to cold temperatures
A. vasoconstriction B. vasodilation
The uterus is a target organ of which hormone?
A. Gonadotropin-releasing hormone B. Follicle-stimulating hormone (FSH) C. Luteinizing hormone (LH) D. Adrenocorticotropic hormone (ACTH) E. Oxytocin