1 Question 1 of 112 PointsHow are oxytocin and vasopressin related?I. They are synthesized in the hypothalamus.II. They have 8 peptide bondsIII. They are cyclicpeptides.IV. They have disulfide bond.V. They influence social bonding behaviors.Select the correct response:I, II, and VI, III, IV, and VI, II, III, and IVI, III, and VI, II, III, and VII, III, IV, and VI, II, III, IV, and VII, III, and IVII, IV, V

Oxytocin has an important role in stimulating uterine contractions and milk production after birth.…

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Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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QUESTION 7 In Autorhythmic cells, Sympathetic control of heart rate leads to a(n) No change in CAMP levels but an activation of a G protein leading to an increase in intracellular Na* Decrease in CAMP levels and a decrease in intracellular Na* Increase in CAMP levels and a decrease in intracellular Na* Increase in CAMP levels and an increase in intracellular Na* Decrease in CAMP levels and an increase in intracellular Na*
Question 10.6 Homework • Unanswered Which of the following statements are true? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Hormones cause a change in the structure of their receptor. Hormones can be almost any chemical compound, peptide or b protein. Hormones are only large proteins. d. Hormones travel through the blood.
Question 56 SavedAccording to the biogenic amine hypothesis, which statement best explains the pathophysiology of depression? Question 56 options: activity is reduced in key brain areas due to decreased presynaptic neurotransmitter release or decreased postsynaptic sensitivity there is a disturbance in the negative feedback mechanism associated with the HPA-axis disruption of the normal sleep-wake cycle results in elevated levels of plasma cortisol due to a genetic abnormality in the amygdala, there is a decreased synthesis of neurotransmitters
Question 4 Which of the following contain statements that are both correct? Increase in CAMP and IP3 levels promotes increase in intracellular Ca*2 ions. Phytochemicals that elicit sweet sensation are considered natural sweeteners. O Each taste buds contain only one taste receptor cell type, which results to a predominant taste modality on specific tongue locations. In a 250g carbohydrate meal, a total of 1 kcal of energy is produced. O Ligand binding to G-protein coupled receptors (GPCR) promotes the activation of heterotrimeric G-proteins. G-proteins are activated through direct phophorylation of GDP that bound to the a-subunit. O Aspartame triggers the cellular signaling cascade via activation of CAMP as secondary messenger. Primary role of non-nutritive sweeteners is to provide energy for the body.
Question 4 Some drugs are given to patients using other routes such as sublingual or topical to avoid moving through the liver and possible side effects. Which of the following effects is the Nurse Practitioner attempting to avoid by administering certain medications via alternative routes? Prodrug effect Plasma concentration-time curve effect First-Pass effect Drug-receptor interaction effect
Question 19 What makes a cell responsive to a particular hormone? O The location of the gland that secretes the hormone O The chemical properties of the hormone O The location of the target cells in the body O The presence of a receptor for that particular hormone A Moving to another question will save this response.
Question 5 What is not a deficiency symptom of Thiamin? Tachycardia O Confusion O Anorexia O Poor short term memory Question 6
Question 21 Which effect is a response to glucagon secretion? O A. Inhibition of skeletal muscle VLDL transport O B. Activation of skeletal muscle glycogenolysis C. Inhibition of liver tyrosine phosphatase D. Activation of adipose hormone sensitive lipase O E. Activation of liver GLUT2
Question 3 A client is admitted to the hospital with deep vein thrombosis. As infusion of heparin is established. What action best protects the client's safety? A. Ensure protamine sulfate is readily available B. Ensure that the client's call light is easily accessible C. Have two nurses independently monitor the client's heparin infusion D. Keep a preloaded syringe of vitamin K in the room
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Question 8 Which of the following is the correct order of mechanism of how sugar is perceived? 1. Signal transduction caused by the neurons through action potential towards the brain 2. Release of ATP from the activated subunit 3. Binding of molecule on specific ligand and consequent activation of G protein subunit 4. Activation of secondary messengers leading to Cellular depolarization and increase calcium concentration O 3, 1, 4, 2 O 1, 2, 3, 4 O 3, 4, 2, 1 O 4, 3, 2, 1
QUESTION 1 Insulin can have pleiotropic (wide ranging) effects in cells because • The Insulin receptor phosphorylates a family of substrates inside cells. • There are over 20 versions of the Insulin receptor expressed in vertebrates. • The Insulin receptor heterodimerizes with the GH and PRL receptors. • MRAP (membrane associated receptor proteins) couple the Insulin receptor to different effector pathways inside cells. QUESTION 2 Cholecystokinin (CCK) is accurately described by which of the following statements? • It is not a member of a peptide hormone superfamily. • It binds to a 1 TMS receptor that signals through guanylate cyclase. • It is sulphated on tyrosine residues for full activity. • It is proteolytically released from POMC by gut cells. QUESTION 3 Insulin ... • is released from the pancreas in vertebrates and invertebrates. • Is released from the vertebrate pancreas in response to hyperglycemia. • is released from the vertebrate pancreas in a response to hypoglycemia. •…

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