1/ Which of the following hormones would enter its target cell? insulin / cortis
ID: 97221 • Letter: 1
Question
1/ Which of the following hormones would enter its target cell?
insulin / cortisol / EPO / epinephrine
2/ Which of the following hormones would bind a receptor on the exterior surface of its target cell?
glucagon / tri-iodothyronine / calcitriol / aldosterone
3/ Derek has been diagnosed with corticosteroid insufficiency; that is, he isn't making enough cortisol. His blood tests reveal that his Corticotropin Releasing Hormone levels are elevated; AdrenoCorticoTropic Hormone is low; and cortisol is low. Which of his organs is not working correctly?
adrenal cortex / hypothalamus / anterior pituitary / pancreas
4/ Amelia suffers from hyperthyroidism. Blood tests reveal the following results: elevated Thyroid Releasing Hormone, elevated Thyroid Stimulating Hormone, and elevated T3 and T4. Which organ is not working properly?
pancreas / hypothalamus / thyroid gland / anterior pituitary
Explanation / Answer
1.cortisol.
Cortisol is steroid hormone in nature and steroid hormones are lipid-soluble and they easily pass through the cell membrane of a target cell into the cytoplasm. In tge cytoplasm they bind to specific intracellular receptors to form a hormone receptor complex that enters the nucleus.
2. Tri iodothyronine.
Tri -iodo thyronine is an amino acid deravative. The amino acid derivatives, peptides or polypeptide protein hormones bind to specific receptor molecules located on the plasma membrane to form the hormone receptor complex.
3. His adrenal glands ,hypothalamus and pituitary isn't working properly.
4. Hypothalamus.
Hypothalamus isn't working properly and is producing ncreasing amount of thyroid releasing hormone which cause release of elevated level of thyroid stimulating hormone . This in turn causes release of elevated level of T3 and T4.
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