To investigate the effect of different caffeine concentration on the heartbeat rate of Daphnia at room temperature.
To investigate the effect of different caffeine concentration on the heartbeat rate of Daphnia at room temperature.
Introduction:
Caffeine is found, and produced in many plant species to function as a natural pesticide, and as an inhibitor of seed germination of other nearby coffee seedlings to give it a better chance of survival. Caffeine is able to paralyze and kill certain insects upon feeding on the plants that produce caffeine. Coffee, tea and cocoa are common caffeine-containing plants widely used to this day. Caffeine can also be found in soft drinks such as cola, to enhance its flavour. Energy drinks such as Red Bull and Pro-plus also contain caffeine as part of its ingredient. In addition to that, in recent years, caffeine has been added into shower products such as shampoo and soap by various manufacturers. They claim that the caffeine can be absorbed through the skin. However, the effectiveness of such products has yet to be proven.
Caffeine is a stimulant, which, in humans, can cause heart rates and blood pressure to increase. This stimulant belongs to the xanthenes group, and is actually a bitter white crystalline xanthine, that acts as a psychoactive stimulant drug and a mild diuretic. Its effects range from mild alertness to heightened anxiety and body tension. This is the reason why caffeine is added into energy drinks: to allow students to stay awake and be alert late into the night during exam periods.
However, when caffeine is overused, and taken in large amounts over extended periods of time, it can lead of a condition known as caffeinism. It is usually a combination of caffeine dependency with a wide range of unpleasant side effects, including nervousness, muscle twitching, insomnia, headaches, and heart palpitations. Overdoes of caffeine, increases the production of stomach acid, and can cause digestive problems.
This experiment was conducted on Daphnia’s to investigate if caffeine would affect the Daphnia’s heart
Introduction:
Caffeine is found, and produced in many plant species to function as a natural pesticide, and as an inhibitor of seed germination of other nearby coffee seedlings to give it a better chance of survival. Caffeine is able to paralyze and kill certain insects upon feeding on the plants that produce caffeine. Coffee, tea and cocoa are common caffeine-containing plants widely used to this day. Caffeine can also be found in soft drinks such as cola, to enhance its flavour. Energy drinks such as Red Bull and Pro-plus also contain caffeine as part of its ingredient. In addition to that, in recent years, caffeine has been added into shower products such as shampoo and soap by various manufacturers. They claim that the caffeine can be absorbed through the skin. However, the effectiveness of such products has yet to be proven.
Caffeine is a stimulant, which, in humans, can cause heart rates and blood pressure to increase. This stimulant belongs to the xanthenes group, and is actually a bitter white crystalline xanthine, that acts as a psychoactive stimulant drug and a mild diuretic. Its effects range from mild alertness to heightened anxiety and body tension. This is the reason why caffeine is added into energy drinks: to allow students to stay awake and be alert late into the night during exam periods.
However, when caffeine is overused, and taken in large amounts over extended periods of time, it can lead of a condition known as caffeinism. It is usually a combination of caffeine dependency with a wide range of unpleasant side effects, including nervousness, muscle twitching, insomnia, headaches, and heart palpitations. Overdoes of caffeine, increases the production of stomach acid, and can cause digestive problems.
This experiment was conducted on Daphnia’s to investigate if caffeine would affect the Daphnia’s heart