L11_Key_1106S19.docx - BIOL 1106 Classwork Spring 2019 Lesson 11 Communication via Chemical Messages(20pts This graded assignment is subject to the

L11_Key_1106S19.docx - BIOL 1106 Classwork Spring 2019...

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BIOL 1106 Classwork Spring 2019 Lesson 11: Communication via Chemical Messages (20pts) This graded assignment is subject to the Virginia Tech Honor Code. Sharing or posting any content from this assignment, or using such shared or posted assignment content to answer assignment questions, is a violation of the Virginia Tech Honor Code. Learning goal: Students will understand that the endocrine system regulates body functions via chemical signals. Learning objectives (LO): 1.Distinguish between paracrine regulators, autocrine signaling, hormones, neurotransmitters, andpheromones. 2.Distinguish between endocrine and exocrine glands. 6.Explain the action of pancreatic hormones on blood glucose homeostasis.S1: Apply scientific reasoning to biological problems.Lipophilic and hydrophilic hormone table Learning Objectives 1-31.(6pts) Complete the following table (.5pt/ cell).CharacteristicLipophilic hormonesHydrophilic hormonesChemical properties:-Polar or non-polar?-Soluble in water or fat?a.Non-polar, fat solubleb.Water (blood) solubleUses transport proteins in blood?c.yesd.NoWhere is target cell’s receptor?e.intracellularf.On cell membraneWhat is the mode of signal transduction? (In other words,what is the target cell’s typicalresponse after the hormone binds to the receptor?)g.Bind to hormone-activated transcription factors to effect DNA transcriptionh.Activate protein kinases to phosphorylate proteinsTypical response timei.Slower (may take hours)j.Faster (minutes)Examples (at least 2 should beprovided for each)k.Steroids and thyroid hormones, retinoids, Vit Al.Peptide, protein, glycoprotein hormones, catecholamines This graded assignment is subject to the Virginia Tech Honor Code. Sharing or posting any content from this assignment, or using such shared or posted assignment content to answer assignment questions, is a violation of the Virginia Tech Honor Code.
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