Midterm 2 review-1 - MCB32 Review Questions for Midterm 2...

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MCB32 Review Questions for Midterm 2 Fall 2009 1. Name all the organs in the body that secrete lipid soluble hormones Steroids by : Adrenal Cortex Gonads Others by: Thyroid Gland 2a. What are the hormones produced by the anterior pituitary? 2b. What are the hormones produced by the posterior pituitary? Ant Pit: 1. Growth  Hormone 2. Prolactin 3.  Follicle Stimulating  Hormone 4. Lutinezing  Hormone 5. Thyroid  Stimulating Hormone 6.  AdrenalCorticotrophic  Hormone Post Pit: ADH, Oxytocin 3. What are the differences between H2O soluble and fat-soluble hormones. List as many as possible. H20- (NE, Epi, Insulin) -peptides -Stored within cell  waiting for signal to  exocytosis. - Stored in vesicles.  Fast activation, Fast  response because  proteins already made  and waiting for release. -Membrane bound  Receptor -G-protien  Phosphorlyation Cascade Amplification Through  Second Messenger  System Travels through blood  without carrier-protien -Fast clearance and half 
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MCB32 Review Questions for Midterm 2 Fall 2009 life  -Fast off (short duration) Lipid Soluble-  (Steroids and T4) -Synthesized (derived  from) cholesterol  -Cannot be stored so rate  of creation = rate of  diffusion (except Thyroid  Hormone) -Transported on carriers  through the blood  because cannot dissolve  into blood.  -long half life in blood  because of carriers -receptor is inside cell.  -effect done by changing  transcription and  translation of DNA to  make proteins. This  takes awhile to make the  protien -it takes awhile for onset  because they must be  made.  Duration is long. (Slow  Off) 4. Anterior Pit differs from Post pit in terms of anatomy, types of cells, and regulation. Describe each. Posterior Pituatary has  neural cells that are  directly connected to  hypothalamus. Posterior 
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MCB32 Review Questions for Midterm 2 Fall 2009 Pituatary stores it’s own  hormones but does not  make them. Anterior Pituatary-  hormones signal through  blood (portal system)  from hypothalamus to  anterior pituitary, makes  and secretes it's own  hormones  5. This hormone functions in growth of long bones and metabolism involving gluconeogenesis (increased blood glucose), lipolysis, and protein synthesis. Growth Hormone 6. This hormone is the principal hormone for regulating basal metabolic rate. Cortisol 7a. (True/False) Thyroxine (T4) is more active than T3 7b. (T/F) T4 is in higher concentration than T3 in blood circulation. False True They thyroid gland  releases mostly t4 but t4  enters cell and then is  converted to t3.  8. Low amounts of this hormone early in life can cause dwarfism. Thyroid hormone and 
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Midterm 2 review-1 - MCB32 Review Questions for Midterm 2...

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