During writing in my English 110 class I have learnt a lot of things to carry over into my other writing projects such as writing up a biology Lab report and writing a self evaluation in IHS class. Through the help of English 110 I have noticed the way how I phrase certain things and it has helped me to fix it. I found out I was using incorrect wording through peer evaluation and as a result this led me to fix that problem. I also had the problem of run ons which I found to be in all my writing pieces no matter what it is. My first Biology lab report was not good as I did not know how to deal with my problem of run ons. Through English 110 I’ve learnt that there are many ways to separate a sentence without making a comma splice. The techniques that I use to avoid those mistakes are using semicolon, Joining conjunction and commas between complete thoughts. By the time I had my second biology lab report I was able to do all these different things. One other thing that I learnt and brought into Bio lab writing is proof reading which I didn’t do a lot and making connections with the writing and my personal
The effect of temperature on the metabolic rate of Cricket exposed to different temperatures
Rashid Vassell, Bio 104L-J
Introduction
Metabolism is the process by which energy and materials are transformed within an organism and exchanged between the organism and its environment. Metabolism sustains life(Gillooly et al.2001). Cricket also know as gryllidae are tiny insects that can be found in trees, bushes and and among grasses all around the world which means they are exposed to different temperatures all year round. The metabolic rate of these crickets can be determined by the amount of carbon dioxide production or the rate of oxygen production which is a big component depending on where these cricket live. In this lab experiment, crickets were exposed to two different temperatures one being cold and the other being warm. Crickets are ectothermic animal which means they are cold blooded and temperature has profound effect on them as it controls nearly all physical and biochemical process which determine a great deal of their life(Nespolo R.F et al.2003). Endothermic mammals are animals such as birds and human that can maintain their own body temperature in order to keep warm. With this said, the cricket we did the lab experiment on weren’t able to maintain their own temperature and as a result I came up with the hypothesis that stated: The crickets exposed to the higher temperature will have a higher rate respiration as opposed to the crickets exposed to the low temperature as their metabolic rate will slow down because they are not using energy when in the cold temperature as opposed to the crickets in the warm temperature that are using energy.
Methods
Before the lab was conducted a container containing the crickets was placed at the front of the room for us to conduct the experiment on. There was also an ice bath located at the front of the class which contained ice. The mass of the empty chamber that was holding the crickets were weighed and recorded. 3 of the crickets were placed in the chamber and then weighed again. The weight of the chamber with the crickets were subtracted from the empty chamber which resulted in the weight of the crickets to be 0.6 grams. The actual room temperature was recorded and used as the control temperature. There were two chambers which had 3 crickets in each. One was placed in the ice bath and the other in the water bath. These were left for about 10 minutes and the temperatures were recorded afterwards. The crickets were removed from the baths and the shaft of the CO2 sensor was placed in the respiration chamber. The respiration rate of the crickets were observed and recorded.
Results
During this lab experiment many things were found. Based on the results we got for our group, When the crickets were exposed to the cold temperature in the ice bath that is 3 degree celsius, their respiration increased to 59.178ppm/min/g. When the other set of crickets were exposed to room temperature that is 23 degrees celsius their respiration rate decreased to 47.529ppm/min/g.
Table 1. The table below shows the different Respiration Rate for various lab groups when exposed to both hot and cold temperature
Group #
Temperature
(Celsius)
Respiration Rate
(ppm/min/g)
1
Cold
Room Temperature
13
21
27.12
49
2
Cold
Room Temperature
15.5
21
42.1
85.055
3
Cold
Room Temperature
3
23
59.178
47.529
4
Cold
Room Temperature
14
23.5
34.87
54.06
5
Cold
Room Temperature
10
23
32.34
62.80
Table 2. The table below shows the average respiration rate for all the class exposed to different temperature conditions
Temperature (Celsius)
Respiration Rate
(ppm/min/g)
Cold
11.1
39.12
Room
22.3
59.6
Figure 1: The graph above shows the average respiration rate of Crickets exposed to two different temperature, that is cold and warm. Based on the graph above the average respiration rate for the class decreased when the crickets were exposed to the cold temperature because they used less energy. The Respiration rate of the crickets exposed to the warm increased way more than the crickets in the cold temperature as they continued to use energy to move around. This means the warmer the temperature the higher the Respiration Rate will be in these crickets.
Discussion
From the experiment that was conducted to determine how the respiration rate of cricket works in correlation with temperature. The following hypothesis was developed before the experiment was conducted. I hypothesized that the crickets exposed to the higher temperature will have a higher rate respiration as opposed to the crickets exposed to the low temperature as their metabolic rate will slow down because they are not using energy when in the cold temperature as opposed to the crickets in the warm temperature that are using energy. Based on the data observed and recorded the crickets in the cold temperature seized to move as they were getting cold and wanted to conserve energy so they could keep themselves alive and as a result their respiration rate decreased from what it used to be meanwhile, the crickets that were in room temperature continued to go about doing their normal activities which resulted in their respiration rate increasing. Based on these findings it is clear to say my hypothesis was correct. This means that the idea that crickets are ectothermic and cannot control their own temperature is also true. This experiment is relevant because it show to what extent our body is affected by the temperature we live in and can also affect how our body functions. According to Nespolo R.F et al(2003) the same thing happened when they exposed crickets to different temperatures in their lab experimentation.3+
Work Cited
Geiser F .2003. Metabolic Rate and Body Temperature Reduction During Hibernation and Daily Torpor.Annual Review of Physiology 66:239-274
Gillooly JF, Brown JH, West GB, Savage VM, Charnov EL. Effects of size and temperature on metabolic rate. Science. 2001 sep21;293(5538):2248-51
R.F Nespolo, M. A. Lardies, F. Bozinovic.2003. Intrapopulational variation in the standard metabolic rate of insects: repeatability, thermal dependence and sensitivity(Q10) of oxygen consumption in a cricket. Journal of experimental Biology 206: 4309-4315
