hi pls help me answer the ff questions, choose the letter of correct answer only 1. Epinephrine, norepinephrine, and pertide hormones affect target organ cells by:a) bìnding to target receptors in the nucleusb) second messengers released when receptor binding occurs at the plasma membranesurfacec) enzymatic reactions that occur in the ribosomesd) binding to receptors in the cytoplasm2. Steroid hormones affect target organ cells by:a) binding to target receptors in the cytoplasm or nucleusb) binding to target receptors in the plasma membranec) binding to target receptors in the peripheral tissuesd) releasing second messengers at plasma membrane receptors

Epinephrine is an hormone and Neurotransmitter in human beings which play important role in various…

Answered: 1. Epinephrine, norepinephrine, and…

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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Which of the following is important in signal transduction triggered by hormones?a) Phosphatidylinositol and its derivativesb) Phosphatidylserine and its derivativesc) Phosphatidylglycerol and its derivativesd) Phosphatidylethanolamine
Which of the following statements is true? Question 2 options: a) All cells will respond to the hormonal signal because hormones are broadcast throughout the body. b) The regulation of inflammatory responses at the site of an infection is an example of paracrine signaling. c) Paracrine signaling involves the secretion of stimuli into the bloodstream for distribution throughout the organism. d) The axons of neurons typically signal target cells using membrane-bound signaling molecules that act on receptors in the target cells.
A paracrine signaling molecule(s) that is involved in the inflammatory response and pain pathways, and is affected by aspirin, is: A) Factor IX B) Prostaglandins C) Epidermal Growth Factor D) Dopamine E) Serotonin
Fat-soluble signaling molecules cross the cell membrane; but they affect only the target cells because: A) Only in target cells is the signaling molecule capable of initiating the phosphorylation chain that activates ion channels. B) only target cells have enzymes that break down the signaling molecule C) intracellular receptors are present only on target cells D) only targets have the appropriate DNA segments
A dietary deficiency of iodine will lead to which of the following? Question 89 options: a) Decreased production of thyrotropin-releasing hormone (TRH) b) An increased secretion of thyroid-stimulatory hormone (TSH) c) A direct effect on the synthesis of thyroglobulin on ribosomes d) Decreased gene expression due to the inability of receptors to bind to DNA
Which of the following is a substance in the body that facilitates the transmission of pain signals? A) Histamine B) Prostaglandin C) Serotonin D) All of the above
1)The concept of saturation is defined as? a) The ability of a receptor to bind only one type or a limited number of structurally related types of chemical messengers. b) The degree to which receptors are occupied by messengers. c) A decrease in the total number of target-cell receptors for a given messenger d) The increased responsiveness of a target cell to a given messenger 2. Phosphodiesterase activity produces one of the following actions a) Breakdown cAMP b) Increases cAMP c) Increases PKC activity d) Increases cytosolic IP3 levels 3. Phospholipase C leads to one of the following? a) Increase in cAMP b) Breakdown of cAMP c) Increase in cytosolic levels of IP3 and DAG d) A decrease in cytosolic Ca++ concentration
Nerve growth factor binds to which type of receptor? a.) Receptor tyrosine phosphatases b.) Receptor Serine/Threonine Kinase c.) Receptor guanylyl cyclase d.) Receptor tyrosine kinase
Which signaling molecule or molecules bind to a G-protein coupled receptor? (note: there may or may not be more then one answer) a) cortisol b) insulin c) glucagon d) calcium e) cyclic AMP f) epinephrine
The transforming growth factory beta (TGF-b) family of hormones / growth factors are dimers and they interact with specific receptors. Which of the following statements about these receptors is correct? a) A receptor complex is formed from a type 1 and a type 2 receptor b) A receptor complex is formed between the ligand and the receptor c) This family interacts with a single serine- threonine kinase receptor d) The major receptor is intracellular e) The receptor is a G-protein receptor
What chemical is the structural basis of the bile salts, Vitamin D, and all of the steroid hormones to include estrogen, progesterone, and testosterone? A) Cholesterol B) Arginine C) Glucose D) Acetyl CoA E) Glucose-6-dehydrogenase
Although insulin initially acts through a tyrosine kinase receptor it also subsequently results in activation of a Ser/Thr protein kinase. Which one? A) Protein kinase A B) Protein kinase B C) Protein kinase C D) Ras E) Phosphoinositide-3-kinase

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