Caffeine Lab Report

Coffee is often used by many individuals as a stimulus to stay more alert when preforming tasks but it may not have the same effects on individuals with depression. The overproduction of the neurotransmitter Acetylcholine has been associated with people with depression. Active research have correlated high acetylcholine levels in the brain to increase depression like symptoms in healthy individuals and individuals with bipolar disorder. Other stimuli such as caffeine have been studied to determine an increase risked of depression by using dose-response methods in people who have experience depression in their lifetime. In this experiment the effects of acetylcholine and caffeine on the heart rate of a ghost shrimp, Palaemonetes, were tested to determine if the combination of these

From the results obtained from conducting this experiment, it can be observed that caffeine influences blood pressure levels, both systolic and diastolic and causes it to spike up within a short period of time. These results support the research conducted prior to this experiment, which states that caffeine consumption causes blood pressure levels to rise due to a sudden increase in adrenaline and vasoconstriction in the body.

Pure caffeine is a white powder, like what is found in caffeine pills, and is “a plant-based alkaloid which

Caffeine is a mild stimulant that occurs naturally in at least 63 plant species. Caffeine can be found in the leaves, stems, seeds, and roots of these various plants. Caffeine is part of the methylxanthine family. It consists of a xanthine molecule with three methyl groups attached to it. Caffeine can be found in many products like sodas, tea, and coffee, but it also occurs in several other products such as prescription medications, diuretics, and pain relievers. Caffeine’s widespread use and popularity have caused many people to view the substance as an addictive drug. Thus making caffeine the most inexpensive and readily available drug known to man. Then on the other hand there are

Caffeine is a natural product that is extracted from the raw fruit of coffee plants over sixty creased alertness. Caffeine gives most people a temporary energy boost and elevates mood..species to be exact. kola nuts, cocoa, yerba maté, guarana berries, coffee beans and teas contain this. Caffeine is rapidly absorbed in about 30 to 60 minutes in our bodies after ingestion. Caffeine is defined as a drug because it stimulates the central nervous system, causing increased alertness. Caffeine gives most people a temporary energy boost and elevates mood.caffeine can also be in things like over the counter medications, and pain relievers.

According to the study of fish physiology, fish gills are responsible for gas exchange, allowing the fish to absorb oxygen from the water and use it as energy for metabolism. These respiratory organs have small aqueous pores between cells in the gill epithelium, which allow small hydrophilic molecules to pass through (Ostrander, 2000). Caffeine is a relatively small, crystalline purine substance consisting of electronegative nitrogen and oxygen atoms, and is soluble in water, which means that it is polar and hydrophilic (Yeboah et al., 2013). In consequence, it could have passed through the gills of goldfish without being consumed by the fish, and therefore failed to take effect in this experiment even though it might simulate the goldfish’s

The purpose of this lab was to see if decaf coffee or regular coffee had a better effect on the germination of flax seeds rather than tap water. We hypothesized that the caffeine in the coffee would be a boost and increase the speed of the flax seeds germination because of caffeine's effect on the human body and how it energizes us.

The liver plays a central role in the nitrogen metabolism in the body. The nitrogen transport is performed mainly from muscle and lung to the liver, as glutamine, plus alanine and aspartate. The breakdown of glutamine releases NH3 that through mitochondrial enzymes comes as a substrate in the urea cycle, producing urea and ornithine. In the kidney, the action of glutaminase produces the NH3, because that glutamine is quantitatively the most important donor of NH3 in this tissue. In collecting tubule NH3 combines with exported H+ to form NH4+, which is lost in the urine. Thereby, glutamine metabolism is essential for acid-base buffering [33], and also plays an important role in the biosynthesis of nucleotides, detoxification of ammonia, glutathione

In Accordance to our survey question number 13 asks when should the drug be stopped? There where 78 responders 53 responders (67.95 %) replied tachycardia, 6 responders replied vomiting (7.69%), 12 responders (15.38%) replied feeding intolerance, 8 responders replied jitteriness(10.26%) and the 21 responded other. Moreover, the respondents that replied other had Tachycardia as the highest number thus this accounts for the highest overall respondents which believed that the drug must be stopped if the caffeine cause the heart rate to increase more than 200bpm. 4 respondents said necrotizing entercolitis (NEC) was the primary reason the drug should be stopped. Followed by two respondents that said both tachycardia >200bpm and NEC.

In this experiment, I was unable to complete the tests that would suggest isolation success. If the melting point of the experimental caffeine was tested, the experimental melting point would need to be 238o Celsius to be successfully isolated. A melting point lower than this would suggest that the isolate was impure. If a TLC plate was performed on the crude caffeine and the isolate, the crude would have multiple retention factor values while the isolate, if isolated successfully, should only have one retention factor. If an IR spectrum was performed, the spectrum should only show functional groups in caffeine such as amides and amines, and should not include functional groups like phenyls or esters.

Caffeine is a psychoactive drug enjoyed by many people every day around the world and some people love the feeling they get from it, while others regard caffeine as a drug that manipulates the mind and readiness of its prey. However, many fail to understand the way that it works or don’t even know its origins. The most notable discover would be a German scientist Friedlieb Runge in 1819 that was able to not only isolate but also synthesis caffeine from its various products that it is found in, “Pure caffeine”. The form would be a crystal looking substance similar to that of sand. Pure caffeine is a form of methylxanthine alkaloid that has a bitter taste, and the crystal looking of pure caffeine was a purine that is a white purine. However, caffeine

Caffeine is a stimulant of the nervous system which affects many aspects of the body. The overall effect of caffeine consumption is an overall feeling of awareness and higher levels of energy. Caffeine is the most used drug in the world. From coffee, tea, soda, to daily energy boosters and energy drinks, caffeine has become mainstream in American society, so much so, that over 90% of Americans drink caffeine on an everyday basis (Villanova). This is due to caffeine’s addictive nature. This drug affects almost every aspect of the body in some way, but especially performance. Our experiment is specifically testing the effect of caffeine on athletic performance and intellectual capacity. To test such things on human subjects, it would be very

Caffeine is considered to be the most consumed psycho pick-me-up and is present in more than sixty plants. It is part of our everyday consumptions, such as coffee, tea, energy drinks and even chocolate even its small amount, around 90% of individuals use caffeine in one form or another. Caffeine has many similar traits with more of the bigger drugs such as cocaine, amphetamines and even heroin. The thing is that caffeine uses similar biochemical mechanisms as the other drugs which in fact are known to stimulate the brain function. Caffeine is also known as 1, 3, 7-trimethylxanthine, and derives from a methylxanthine group and includes theophylline and theobromine (5). Methylxanthine inhibits the neurotransmitter adenosine by stimulating by

Materials and Methods The planaria were placed in 1 petri dish, 18ml of pond water for storage, after the collection. The planaria were separated into groups designated by a labeled petri dish. 1 planaria group was placed in a petri dish filled with 18ml of pond water. Another group, the control group was placed in another petri dish prepared in the same fashion. Each group of planaria was fed each Friday, although most of the first group died from unclean dishes, human error, which necessitated the sampling of a second group.

Background: Caffeine is a drug that is commonly used around the world. It is naturally present in coffee and coco beans, tealeaves and in various medicines and food supplements. Excess caffeine intake can cause harmful side effects, ranging from muscle tremors, fast heartbeat, insomnia and upset stomach (Adan A, et al. 2008). As such, it is important to be able to analyze and quantify caffeine in various food and medicinal products to ensure the safety and efficacy of the product. Currently, HPLC and UV-vis are common analytical methods for analyzing caffeine. Unfortunately, these two methods are time consuming and utilize large amounts of solvent, thus a more time efficient and less material consuming method is sought after. Near-infrared spectroscopy (NIR) is a method of interest due to its ability to analyze an analyte from a whole compound, which would save time (Blaco et al. 1998). Additionally, this reduces or diminishes the requirement for sample preparation when measuring solid samples, thus decreasing errors that can arise from sample preparation methods. Unfortunately, only a small number of procedures has been carried out and published on NIR applications with whole tablets since more work has been focused on qualitative NIR practices (Chen et al. 2001) Due to the various advantages of using NIR, Laasonen et al. sought to develop and validate a method using NIR diffuse reflectance to measure caffeine concentration in whole tablets (2003).