The Effects of Secondary Plant Compounds on Lumbriculus Variegatus Heart Rate Introduction Blackworms (Lumbriculus variegatus) were used in this experiment to study the effects of secondary plant compounds‚ chemical compounds produced by plants that are not part of the general metabolism‚ on pulse rate. Secondary plant compounds act as defense mechanisms which reduce or eliminate consumption of some plant species or even attract predators. These compounds are not essential to the plant but often
Premium Heart Caffeine Blood vessel
Caffeine in the diet Email this page to a friend Bookmark & Share Printer-friendly version Caffeine is a substance that is found in certain plants. It can also be man-made (produced synthetically) and then added to food products. It is a central nervous system stimulant and a diuretic (substance that helps rid your body of fluids). Function 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
Free Caffeine
How does Caffeine affect the human body? Caffeine is the world’s most popular drug (Spiller‚ 1998)‚ and can be found in over 60 species of plants throughout the world. Consumption of caffeine comes from cola‚ coffee‚ cocoa‚ tea‚ some medications and so much more. In this paper I will describe the effects of caffeine on the human body‚ from the health risks to how it can help your body; here are just some of the ways caffeine affects the human body both physically and psychologically. First of
Premium Caffeine Addiction Osteoporosis
exoskeleton. The heart is located in the upper portion of the cephalothorax‚ which is located just in front of the first abdominal segment (UNT Lab Manual‚ 2017). We can measure the heart rate of the crayfish by measuring the change of the impedance of the circuit that is created by placing fine wires on
Premium Neurotransmitter Circulatory system Circulatory System
measure the effect of pollutant on organism by finding the smallest concentration possible that could still be a bother. This is a valuable tool because we can get direct results from a living organism by detecting stress signals all in a short period of time allowing us o fix the problem quicker. Using an organism for the assay is the best choice because there are many variables that can be used to identify stress on the subject because of a specific input. Materials and Methods Everything
Premium Family Marriage Health care
human’s heart rate to speed up‚ decrease‚ or stay the same‚ the volume of sound has a high effect on the heart. However‚ if people will let down the volume of sound‚ others would not be mannered by the increase in volume managing to the deadly heart attack. Sound within the community‚ for instance‚ traffic can cause a human’s heart rate of increase. Problem of heartbeat tends to be solved by seeing what kind of sound causes the increase of heart rates to place a termination to increase of heart rate
Premium Heart rate Cardiology Hypertension
increase the production of Adenosine Triphosphate (ATP)‚ which gives them the energy they need to perform. In this experiment‚ creatine is added to water and its effects on Daphnia is tested. By observing the heart rate‚ one can determine if the creatine increases or decreases heart rate. Heart rate was chosen to be measured because one can then see how creatine affects the heart. If it is unhealthy for the Daphnia‚ it could potentially be unhealthy for humans. “Long-term safety of creatine supplementation
Premium Heart rate Time
Effects of Caffeine and Nicotine on Lumbriculus variegatus INTRODUCTION An experiment was conducted to study and explore the circulatory system by exposing Lumbriculus variegatus‚ black worms‚ to household drugs. Lumbriculus variegatus was chosen as the experimental organism because of their transparent bodies and their simple physiology. Their transparent bodies help the experimenters to easily see their pulse. Another reason for choosing this specific organism is their body structure—large
Premium Caffeine Standard deviation Arithmetic mean
Quest The purpose of this experiment was to find out how music affects the female human heart rate. Hypothesis My hypothesis is that female resting heart rate will increase as the music tempo increases. If the tempo is slower the heart rate will stay at resting heart rate or decrease. Variables The variables used in this experiment were: • The tempo of the music. • The subject’s heart rate. • The subject’s age. Controls The controls used in this experiment were: • How long the subject
Premium Psychology Experiment Scientific method
Evidence Homework #1 Topic: Caffeine Preview: Every morning when I wake up the first thing I do after brushing my teeth is walk straight to the coffee pot. I pour myself a hot rich cup of coffee to start the day off. On my way out the door I grab my go cup and fill it up. When I finally get to school I get myself another cup of coffee. How many miller grams of caffeine do you think I have drank at this point? According to the Mayo Clinic a healthy amount of caffeine for an adult is 200 to 300 miller
Free Caffeine