PPT-HORMONE ACTION AND SIGNAL TRANSDUCTION

Author : danika-pritchard | Published Date : 2016-05-06

DR AMINA TARIQ BIOCHEMISTRY Survival of a multicellular organism depends on their ability to adapt to the constantly changing environment Intercellular communication

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HORMONE ACTION AND SIGNAL TRANSDUCTION: Transcript


DR AMINA TARIQ BIOCHEMISTRY Survival of a multicellular organism depends on their ability to adapt to the constantly changing environment Intercellular communication mechanisms are necessary for this adaptation. (from Kimura, 1966). Electron micrograph of 3 OHCs. spiral ligament. modiolus. When the basilar membrane vibrates up and down in response to the sound wave, the hair cell cilia are displaced 1. st. in one direction then in the other; i.e., 1. Chapter 13, . Stryer. Short Course. Signal Transduction. Signal from exterior of cell must affect interior of cell. Through the membrane. Amplification of signal. Ability to turn off. A few pathways…. DR AMNA TAHR. ASSISTANT PROFESSOR. PHYSIOLOGY DEPARTMENT. KEMU. HORMONE. A  . hormone.   is a . chemical substance. produced in particular parts of organisms by specific cells, glands, and/or tissues and then transported to other parts of the body, with the intent of influencing a variety of physiological and behavioral activities, such as the . By. Dr. Ahmed . Hussain. A. . Mujamammi. . Clinical Chemistry Unit. Pathology Department. College of Medicine, KSU. OBJECTIVES. By the end of this lecture, students should be able to:. Acquire the knowledge for general consequence of hormone-receptor interaction . Organisms. can function normally only if:. All the cells of their different organs communicating effectively with their surroundings. . Once a cell picks up a hormonal or sensory signal, it must transmit this information from the surface to the interior parts of the cell—. Pratt & . Cornely. , Chapter 10. Terms for Signal Transduction. Ligand. Receptor. Transducer. Effector. Second messenger. Target proteins/DNA. Ligands. Hormones vs Local mediators. Polar (insulin) vs nonpolar (steroidal hormone). Which of the following gives a correct and broadest description of signal transduction pathways?. binding of a signal molecule to a cell protein. catalysis mediated by an enzyme. sequence of changes in a series of molecules resulting in a response. Index. Introduction. Discovery. Linkage data from transduction. Specialized transduction. Lytic and Lysogenic Cycle. Introduction. Transduction is the process by which DNA. . is transferred from one bacterium to another by a virus.. DR AMNA TAHR. ASSISTANT PROFESSOR. PHYSIOLOGY DEPARTMENT. KEMU. HORMONE. A  . hormone.   is a . chemical substance. produced in particular parts of organisms by specific cells, glands, and/or tissues and then transported to other parts of the body, with the intent of influencing a variety of physiological and behavioral activities, such as the . LO 3.36: The student is able to describe a model that expresses the key elements of signal transduction pathways by which a signal is converted to a cellular response. SP 1.5: The student can re-express key elements of natural phenomena across multiple representations in the domain. More than 4 years experience in developing and analyzing mathematical models of complex bio-chemical reaction networks 10 Journal papers, 1 book chapter, 6 peer-reviewed conference papers, and 7 Learning Objectives. Learn the general structure and properties of hormones.. Know the differences between Hormones, Neurotransmitters & enzymes. 3. . Understand . the general properties of signaling molecules (ligands), cell-surface receptors, & intracellular signal transduction components.. Jennifer M. . Demma. , MSN, APRN-CNM. Disclosures. No disclosures or conflicts of interest. Objectives. Understand informed consent and harm reduction principles as applied to provision of gender-affirming hormone care.. Cellular Signaling. Autocrine Signals . Diffuse from one part of a cell to another part of the same cell. Synaptic signaling. Neurotransmitter is the signaling molecule. Occurs in the animal nervous system.

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