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The amount of gas emitted at the top of tube was observed to over 10 minutes so as to determine cellular respiration rate. The pollutants used included; vinegar, salt solution, isopropyl alcohol, baking soda, soap solution, and bleach solution.
The result for yeast mixture was compared with the results for yeast-sugar mixture. The yeast-sugar mixture exhibited a faster cellular respiration rate. The outcomes of the pollutants had mixed results. Except baking soda, most of the pollutants utilized had a lower cellular respiration rate.
According to Carpenter (2013), cellular respiration is a process in which chemical energy in the food is reaped and converted into energy that is utilized in carrying out the normal life process. Every organism requires cellular respiration for survival. This process happens in three distinct phases; glycolysis, Krebs cycle, and electron transport chain. Lippmann (2009) argues that during these cycles, oxygen and glucose in our body are turned into carbon dioxide, energy, and water. The first phase of cellular respiration is when one glucose molecule is split to produce two pyruvic acid molecules, a 3-carbon compound (Schapira, McQuaid & Froneman, 2011). This first phase is anaerobic, implying it does not need oxygen to occur. The remaining phases require oxygen. As such, the experiment was conducted within an oxygen zone and a considerable time frame to allow the three phases of cellular respiration to occur.
To test our first hypothesis, the experimental design was such that yeast was mixed with water then poured into a test tube. A wider test tube was placed over the yeast test tube and flipped together over 10 minutes to observe the level of gas amounting in the wider tube. The amount of gas was recorded every minute in the10 minutes. The same was done to a yeast-water mixture but with granulated sugar added into
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A basic concept in cellular respiration is the transfer of chemical energy (electrons) from an electron donor to an electron acceptor. Most of the organisms use oxygen as the final electron acceptor although some organisms (eg. Yeast) use other alternatives.
Photosynthesis is the process through which green plants, algae, and cyanobacteria convert the sun’s energy into chemical bond energy of organic molecules that it consumes as food. This paper covers two experiments on photosynthesis; the first one investigates whether a positive rate of net photosynthesis depends on light levels.
From this research, it is clear that respiration processes and fermentation processes are similar in that both have carbon dioxide involved in the processes. In the respiration process, the carbon dioxide is the respired gas. In the fermentation process involving glucose carbon dioxide is the byproduct of the reaction that mainly results in the conversion of glucose into ethanol.
The Frequency of Breathing is the number of breathing cycles per minute. One breathing cycle is an inhalation followed by an exhalation. In the trace for normal breathing, there are 15 cycles plotted over the time of 1 minute so the respiratory rate is 15 breaths per minute.
Proteins are compounds made up of a number of amino acids bonded together in a polymer-like head-to-tail manner.
Each class of biological molecules has certain chemical characteristics that are due to the presence of
In the first part, fermentation is measured using gas height as proxy for carbon dioxide measure and the rate of reaction. In the second part, respiration is measured in terms of carbonic acid production. (ASPB Foundation n.d.; Nuffield Foundation 2013; The Regents of the
Circulation is movement of blood through the blood vessels in the body to and from the heart. Both components are related in that CO2 is a waste product that has to be eliminated from the body through the process of respiration. Other waste products such as dead