Biolabpaperoutline

Biolabpaperoutline - TITLE organism studied, particular...

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TITLE – organism studied, particular aspect of the system studied, variable manipulated Abstract -each section summarized in a sentence or two pg 120-122 Intro -scientific concept -chemicals affects on cardiovascular system of organisms? The cardiovascular system of an organism is regulated by hormones and neurotransmitters, that work together to keep the organism in homeostasis. The release of these hormones and neurotransmitters and their effect on the cardiovascular system they induce can be influenced by many stimuli. -background -pulsation rate or in the case of humans, heart rate (General) -usually static but increases and decreases due different factors : -age -gender -general health -exercise -digestion – blood must be sent to the stomach and intestines and therefore the heart rate must increase so that the pressure doesn’t drop too low (Factors that affect heart rate) -high blood glucose levels high blood glucose levels themselves increase the heart rate in humans (high blood glucose = high heart rate) -drugs -drugs – stimulants “Stimulants (Analeptics) produce a variety of different kinds of effects by
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enhancing the activity of the central and peripheral nervous systems . Stimulants exert their effects through a number of different pharmacological mechanisms, the most prominent of which include facilitation of norepinephrine (noradrenaline) and/or dopamine activity.” [7] -Stimulants also increase blood pressure and heart rate, constrict blood vessels, increase blood glucose, and open up the pathways of the respiratory system. (Effect of stims on PR) -caffiene -molecular formula – C 8 H 10 N 4 O 2 -common uses and effects on body -consumed commonly by humans in coffee, tea, and soft drinks -CNS and metabolic stimulant in humans (1) -“nonselective adenosine receptor antagonist which raises plasma epinephrine and diastolic blood pressure.” [8] this means that caffeine raises blood pressure which is associated with Pulsation rate -glucose -molecular formula - C 6 H 12 O 6 -common uses and effects on body -glucose and fructose make up sucrose, table sugar [9] -Simple sugar –monosaccaride -starts cellular respiration through glycolysis [10] -splenda - made of two things – Bulking ingredients and sweetener (Splenda Ingredients) -sweetener – sucralose - 320 - 1,000 times as sweet as sucrose (2) -The bulk of sucralose ingested does not leave the GI tract and is directly excreted in the
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feces while 11-27% of it is absorbed [ 3 ] . The amount that is absorbed from the GI tract is largely removed from the blood stream by the kidneys and excreted in the urine with 20-30% of the absorbed sucralose being metabolized [4] - C 12 H 19 Cl 3 O 8 -bulking ingredients - maltodextrin – made of dextrose or D- glucose chains. (5) -D – glucose is the common form of glucose dextrose – aka glucose (Dex Def) -made of 95-99% maltodextrin (6) -not sweet Maltodextrin Molecular formula - C 6 n H (10 n +2) O (5 n +1) Dextrose molecular formula - C 6 H 12 O 6 -blackworms - Lumbriculus variegatus
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This note was uploaded on 05/02/2011 for the course BIO 106 taught by Professor Miller/cammilo during the Spring '11 term at Saint Louis.

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Biolabpaperoutline - TITLE organism studied, particular...

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