1) What type of action does a steroid hormone bring about once it enters the cel
ID: 3482507 • Letter: 1
Question
1) What type of action does a steroid hormone bring about once it enters the cell? 2) How does an amino-acid based hormone exert its effect upon its target cell? 3) Why is a person more likely to become ill when under persistent stress? 4) Insulin and glucagon have an antagonistic relationship. Under which conditions are each released? 5) Thyroxine (TaA) regulates metabolism. What would be the effect if a person has high concentrations of thyroxine? Low concentrations? How could this be observed in regard to body mass? 6) What role does aldosterone play? 7) What are the primary functions of the plasma proteins? 8) What actions or substances can impair blood coagulation? 9) Which antigens and antibodies are present in type A blood? Type B blood? Type AB blood. Type O blood. 10) What ion is required for coagulation? 11) What group of autorhythmic cells of the heart controls the intrinsic heart rate? 12) How is stoke volume determined? 13) What are some hormones that decrease heart rate? Increase heart rate 14) What does each EKG wave pattern represent? 15) Why is MAP significant? 16) What are the three tunics (layers) of blood vessels and what is the significance of each? 17) How is blood pressure regulated in regard to the following: nervous system, endocrine system, renal regulation 18) What type of relationship exists between peripheral resistance of blood flow and diameter, blood vessel length, and blood viscosity? 19) What are the functions of the lymphatic system? 20) Which class of nutrients is transported to the blood by way of the lymphatic system? 21) What is the result of a blocked lymphatic vessel? 22) What are antibodies and which immune cell releases them? 23) What is the primary function of complement? 24) What is the function of interferons? 25) What is the primary significance of T helper cells? 26) How do cytotoxic T cells do their work? 27) What are the characteristics of the innate immune system? The adaptive system? 28) What cells are parts of the innate system? Of the adaptive system?Explanation / Answer
Steroud hormone bind to intracellular receptor .receptir protein inherently capable of binding to specific gene hsp90 a.when hormones bind near the carboxy terminus if the receptor the restricting protein are released and receptor dierize s and the DNA binding regulatory segments located in the middle of the molecule folfds inti the requisite configuration.the liganded receptor dimer move ti nucleus and bind other coactivatir or corepressor protein which have a modulatiry influence on its capacity to alter gene.
2peptide hormone bind to extrcellular domains the monimeric receptors move laterally in the membrane and form diamer .dimerisation activate tyrisine kinase activity of the intracellular domain so that they phosphoryalate tyrosine residye on each other as well as on substrate protein .the phosphorylated pritein perform downstre signalling function.
3increase stres cause release more steroid hormonea and also catecholamine.
4insulin secreted in hyperglycemic condition.
Glucagon secreted in hypoglycemic condition
6Aldostrone cause retention of sodium and axcretion of potassium.and alao cause retention of water
7.plasma protein.maintain colloid osmotic pressure ,help in coagulation of blood.,maintain syatemic arterial blood pressure and alao maintain acid base balance in body.
8.anticoagulant like heparinand fibrinolytic system causes impaired blood coagulation.
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