Cellular Respiration Activity- Clothespins and Muscle Fatigue

Analysis

1.      My strength declines as I progressed through each trial.

2.      My hands and fingers felt tired and cramped during the end of the trials.

3.      Take in more food before I squeeze the clothespin.

4.      The number of times squeezing the clothespin are usually higher for the dominant hand than the non-dominant hand. We regularly use more of our dominant hands in daily activities, the muscles inside already get used to do so much every day. We have a better control of our dominant hands. However, our non-dominant hands are not trained to do so much normally and therefore easier to get fatigue.

5.      In order to get the energy that we need every day, our bodies oxidise the carbohydrates and the energy carrier ATP releases energy and becomes ADP and Pi. There is not enough energy to supply the hand for this series of continuous events immediately (squeezing the clothespin) and therefore gets fatigue. However, after 10 minutes, our muscles recover as the energy comes back.

A visit to the Royal Ontario Museum

I went to the Royal Ontario Museum on the 28^th October. The ‘tour guide’ in the museum told us a lot of the phenomenon of the population dynamics happening in this world. One of the most remarkable incidents is because of the effect of global warming, the average water temperature increases which lead to the massive breeding of the giant jellyfish in the sea. To us human beings, this is not a very good sign as jellyfish would sting us with their tentacles. Once there were some fishermen in Japan, who threw their nets into the sea and instead of catching fish, they caught a huge amount of giant jellyfish, their weight even exceed the capacity of the boat and the boat turned upside down. Some of the people suggest that in order to eradicate these jellyfish, they should build a net full with steel spikes and tear all of the jellyfish apart, however, it turned out that this is a very bad solution as these giant jellyfish breed a lot when they feel anxious, this causes a lot of their eggs to land on the seabed. The food chain is interconnected, there is always a reason why such an animal exists in this world, disrupting the habitat would surely lead to unimaginable consequences, therefore we should monitor frequently the effect of the activities on the environment.