BIO188_Outline_Oct23 (1)

BIO188_Outline_Oct23 (1) - BIO 188 BIO October 23, 2009 1....

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BIO 188 October 23, 2009 BIO 188 October 23, 2009 1. Today: 2. Today from ch 6 and Monday form ch 7.1-7.5; skim ch 50.3 anf 50.4 3. 1. vote on Exam 3 date 2. the end of stress 3. energy 4. metabolism 5. enzymes Are you opposed to moving Exam 3 from Mon Nov 9 to Fri Nov 13? 6. yes, I’m opposed to changing the date 7. no, it’s fine to change to Friday 4. What is stress? 1. A terrible term (stimulus? response?) 2. Stressor (a stimulus) : a perceived threat to homeostasis ? survival? reproduction? 3. Stress response : body's attempt to deal with stressor, restore homeostasis 5. What are components of the stress response? 1. 1) Very fast nervous system response: activation of sympathetic NS and release of epinephrine (adrenaline) 2. 2) Neuro-endocrine response leading to release of stress hormone (cortisol) into bloodstream What do epinephrine and cortisol do during a stress response? 3. In many vertebrates: 1. increase blood [glucose] (why?) 2. increased cardiac output (why?) increased cardiac output (why?) We need to dilver O2 We need to dilver O2 3. increased attention, activity, aggression, learning/memory (why?) 4. decreased reproduction, digestion (why?) 5. decreased inflammation (why?) 4. A lot stress response is about …
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6. ____________________________ ___________ What do we call organisms that directly use sources of energy, such as light, to produce organic substrates from inorganic CO 2 ? 1.   Autotroph An organism capable of synthesizing its own food from inorganic substances, using light or chemical  energy. Green plants, algae, and certain bacteria are autotrophs.  1. plants, algae, many bacteria 2. crucial part of every ecosystem 2. Heterotrophs use energy stored in organic carbon for growth 1. all animals, fungi, many bacteria are heterotrophic Heterotrophs : An organism that cannot synthesize its own food and is dependent on complex organic substances for nutrition.
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7. _________________________________________ What the heck is energy?
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This note was uploaded on 02/02/2010 for the course BIO 188 taught by Professor Capco during the Spring '08 term at ASU.

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BIO188_Outline_Oct23 (1) - BIO 188 BIO October 23, 2009 1....

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