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Endo MCQS

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QuestionAnswer
Endocrine glands______ secrete chemical messengers that travel in the bloodstream
Hormone Signalling that affects neighboring cells is called? Paracrine
Insulin and Glucagon are examples of which of the following? Antagonistic Hormones
Regarding steroid hormones which are correct? Are synthesized on demand (De novo synthesis)
A small molecule binds to a G proteins, preventing it's activation. What direct effect does that have on Signalling involving cAMP? Adenylyl Cyclase will not be activated
Hormone Signalling that acts on the same cell that secreted them are? (Common in tumors) Autocrine
Who was in Paris? *Redacted*
Define Synergism in relation to Hormone Interactions. More than one hormone producing the same effects on a target cell. (Either additive or complimentary/cooperative)
Define Permissiveness in relation to Hormone interactions. One Hormone cannot exert it's effects without another hormone being present (e.g. Oxytocin response)
A small molecule binds to a G protein, preventing it's activation. What direct effect will this have on Signalling that involves cAMP? The hormone will not bind to the receptor, adenylyl cyclase will not be activated
A 19 year old student is in a car accident, and thought not hurt, immediately experiences pupil dilation, increased heart rate, and rapid breathing. What type of endocrine system stimulus did this person receive? Neural
Many hormones bind to receptors located on target cells. Which of the following would not bind to transmembrane proteins on the target cells? Testosterone
In relation to steroid hormones, which of the following is INCORRECT? (That means not True :]]]]] ) Steroid hormones are hydrophilic and do not require carrier proteins to transport them in the interstitial fluid.
Which of the following is NOT a messenger produced by the PIP2 signaling system ? PKC (Protein kinase C)
Created by: Jimothy
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