2013 Informative Speech-Caffeine Outline Specific Purpose: To inform my audience about what caffeine is‚ the effects of it‚ and the withdrawal symptoms. Central Idea: Caffeine can be found in many places and comes in many forms. It can major effects on our body and we can experience major withdrawal symptoms. Introduction I. What does coffee‚ tea‚ soft drinks‚ chocolate‚ and a bottle of medications have in common? II. They all contain caffeine‚ and that’s what I’m going
Premium Caffeine Coffee
The purpose of this study is to understand the feeding rate of Daphnia magna. D. magna is a species of Daphnia that belongs to the suborder Cladocera (Ebert‚ 2005). They live in freshwater and feed on small‚ suspended particles in the water. They are filter feeders. Phyllopods‚ which are leaf-like appendages‚ provide a filtering apparatus for the collection of food. These structures beat to produce a constant current of water‚ allowing particles to be filtered by fine setae on the thoracic legs.
Premium Water Oxygen Plant
the daphnia to a chemical stimulant. Also examined was how human resting heart rates differed from the daphnia’s. Stimulants are any substances that raise the levels of activity in the body. Stimulants could be a number of things such as physical or chemical. Physical stimulus usually deal with something that affects the five senses such as sight‚ hearing these could be attributed to loud noises or too much light going into your eye. Chemical stimuli differ because chemicals such as caffeine and
Premium Drug addiction Addiction Heroin
A child’s addiction to Nicotine. Nicotine is a toxic colorless or yellowish oily liquid ‚ which is the chief active constituent of tobacco. It also acts as a stimulant in small doses ‚ but in larger amounts it blocks the autonomic nerve and skeletal muscle cells. The autonomic nerve is the part of the nervous system responsible for control of the bodily functions not consciously directed‚ such as breathing‚ the heartbeat‚ and digestive processes. Addiction is a condition that results when a
Premium Nervous system Smoking Nicotine
fulfilled diagnostic criteria for caffeine dependence. These studies‚ which represent a series of case reports‚ demonstrate that a clinically meaningful caffeine dependence syndrome does exist. When individuals in the general population are surveyed about their caffeine use‚ a surprisingly large proportion endorse substance dependence criteria. In a random digit-dial telephone survey in which all seven DSM-IV criteria for substance dependence were assessed‚ 30% of caffeine users fulfilled diagnostic criteria
Premium Drug addiction Addiction Heroin
4.3. Interactions between nicotine and baclofen Activation of nAChRs within different areas of brain enhances release of several neurotransmitters including: glutamate‚dopamine‚norepinephrine‚ serotonin‚ ‚gamma amino butyric acid(Wonnacott‚ 1997)‚ (Benowitz‚ 2008) The regulation of releasing these neurotransmitters which is induced by nicotine`s effects depending on various postsynaptic receptors‚ is the usual mechanism by which nicotine modulates behavior (Benowitz‚ 2008).As we mentioned above
Premium Dopamine Brain Nervous system
Summary Caffeine is a stimulant for the central nervous system which will relax the muscle and increase the gastric acid and heart rate (Kelly‚ 2017). The analyzing of caffeine and caffeine metabolites in saliva is to quantitatively measure the ratio of concentrations of caffeine and metabolites. There are three different metabolites of caffeine and the majority of caffeine metabolite is paraxanthine. The ratio of concentration represents the activity of the first metabolism enzyme of caffeine‚ CYP1A2
Premium Caffeine Coffee Tea
Daphnia are cold-blooded poikilotherms that rely on heat from the surrounding water to maintain their body temperature. An increase in the water temperature should equate to an increase in metabolic activity due to enzymes working at a temperature closer to their optimum level. However‚ once the optimum temperature has been exceeded‚ the enzymes will begin to denature. Hydrogen bonds‚ which keep the protein conformation‚ begin to break‚ causing a change in shape of the active site; substrates
Premium Heart Blood Metabolism
Caffeine According to MedlinePlus. Gov “Caffeine is absorbed and passes quickly into the brain. It does not collect in the bloodstream or get stored in the body. It leaves the body in the urine many hours after it has been consumed” (MedlinePlus‚ 2015). Along with the comment that there is no nutritional need for it in the diet‚ and can be avoided. This stimulant can be used as an extra dietary supplement to help with fatigue and drowsiness. “This can be found in tea leaves‚ kola nuts‚ coffee beans
Premium Caffeine Coffee Drink
Caffeine and Sleep • Sleep Topics Caffeine has been called the most popular drug in the world. It is found naturally in over 60 plants including the coffee bean‚ tea leaf‚ kola nut and cacao pod. All over the world people consume caffeine on a daily basis in coffee‚ tea‚ cocoa‚ chocolate‚ some soft drinks‚ and some drugs. Because caffeine is a stimulant‚ most people use it after waking up in the morning or to remain alert during the day. While it is important to note that caffeine cannot
Free Caffeine