Test: Mechanism of hormone action
Description: This test targets the students preparing for the medical entrances. The questions are related to the topics: Classification of hormones and mechanism of hormone action.
Keywords: steroid, peptide, second mesenger, hormone receptor complex, hormone
The steps of the cAMP second messenger system in the correct chronological sequence are: 1.G-protein binds to adenylate cyclase which converts ATP into cAMP. 2. Activated protein kinases elicit the cell response. 3. Hormone binds with Receptor. 4. cAMP phosphorylates protein kinases. 5. Receptor changes shape and activates G-protein.
Where in the cell are peptide hormones synthesized?
Rough endoplasmic reticulum
Target cells tend to ______ _______ the number of their receptors when there are sustained high levels of hormone present.
Hormones can stimulate any cell in the body.
Receptors for water-soluble hormones are found on the _____________ of target cells, while receptors for lipid-soluble hormones are found in the ________ or________ of cells.
Plasma membrane, cytoplasm, nucleus
Nucleus, extracellular fluid, plasma membrane
Nucleus, cytoplasm, plasma membrane
None of the above are correct
The secretion of a nonpolar hormone is regulated by __________.
Tropic hormone which is usually a peptide
None of the above
Which type of hormone is 1,25(OH)2D (the active form of vitamin D)?
Prostaglandins are synthesized from
Dopamine, epinephrine, and norepinephrine are collectively referred to as the ______________.
Endocrine glands secrete their products into _____.
both A and B
Which type of hormone is PTH (parathyroid hormone?
Peptide hormones stimulate protein synthesis.
Name the prohormone from which ACTH and alpha-MSH are produced.
None of the above
Which of the following hormone is derived from cholesterol?
Which hormone binds to an intracellular receptor?
Question On Mechanism Of Hormon Action
Questions About Mechanism Of Hormone Action
Target Cells Tend To
Hormone Action Exam
Target Cells Tend To ______ The Number Of Their Receptors When There Are Sustained High Levels Of Hormone Present.
Mechanism Of Hormone Action Questions
Exam Questions In Mecanism Of Action Of Hormones
Target Cells Tent To What The Number Of Their Receptors When There Are Sustained High Levels Of Hormones Present?
Mechanism Of Hormone Action Exam