Cellular respiration

Hydrolysis Powers Cellular Work The phosphate bonds in ATP (adenosine triphosphate) can be broken down by water. When ATP loses a phosphate group in water, this releases energy and creates the products ADP (adenosine diphosphate with two phosphate groups) and an inorganic phosphate. This is an exergonic reaction since energy is released and the reactants (ATP + Water) have a higher energy than the products (ADP+ inorganic phosphate). The hydrolysis (breakdown in…

Hypothesis: Aerobic Respiration: If a phosphate buffer, dichlorophenol-indophenol and succinate are added to a mitochondrial extract then the succinate molecules will bind to an enzyme complex (succinate dehydrogenase). Because the enzyme and FAD are a part of the same complex, initiating succinate oxidation, this reaction reduces FAD to FADH2. Thus the oxidation of succinate to furmarate. Anaerobic Respiration: If a solution of yeast and glucose is combined and placed in different incubation…

The rate of respiration of yeast, using two saccharides and an amino acid, in combination with the cofactor of magnesium, was determined using respirometers. A positive control sample of yeast and water, and a negative control sample of glucose, sodium fluoride and yeast were also employed. After seventy five minutes, the sample containing glucose, magnesium and yeast showed a markedly higher production of CO2 than the other samples. This result supported the hypothesis that glucose is the…

this experiment was that various carbohydrates have different rates of respiration by a yeast culture raised on glucose. The differences in time for respiration to peak for the other sugars were due to enzyme regulation called induction. This is the time required for the glucose fed yeast culture to alter its enzymatic machinery to process sugars other than glucose for oxidative respiration. The different rates of respiration for each sugar was measured by the rate of carbon dioxide (CO2)…

stagnant then dropped even lower before rising back to stagnant levels. This may be because there may have been a slight ventilation in the room at around 125 seconds. 2. What is the role of carbon dioxide in photosynthesis? What is its role in cellular respiration? The role of carbon dioxide in photosynthesis is that it is used by plants to create glucose and water which is what is used as food for the plant and in turn creates oxygen. After the oxygen is formed carbon dioxide is created…

1. Glycolysis a. Indicate at what stage the compound is officially no longer a sugar, and why? The compound is no longer a sugar is at stage five. This is because the fructose 1,6 bisphosphate in stage four, breaks down from a six carbon sugar to two, three carbon molecules. The first one being dihydroxyacetone phosphate (DHAP) and the other being glyceraldehyde 3-phosphate (G3P). b. Indicate how the glucose enters the cell The glucose enters the cell through facilitated diffusion because…

Describe, briefly two cellular reactions that involve ATP hydrolysis (you will probably find the answer more quickly on Google than in your book). ATP is simply a renewable resource which is actually rejuvenated when adenosine diphosphate is mixed with a phosphate group. On the other hand, ATP hydrolysis is basically a method used by the human body to be able to release energy chemically to some other body parts in order for life to be sustained. In the process, ATP is actually converted…

lab because we knew that when yeast use energy, they break down high energy molecules like sugar to get the energy they need and release carbon dioxide as a reaction. Yeast has two kind of respiration: aerobic respiration, which consists of oxygen like humans and anaerobic respiration, it is a cellular respiration that does not need oxygen and yeast perform a fermentation. The characteristics of living things are that living things are made of cells, obtain and use energy, grow and develop,…

The Effect of Citric Acid on Photosynthesis and Cellular Respiration Jacqueline Martinez, Shayla Sanders, Yewande Ifanse, Dyamante Wigenton, Rachelle Hutchinson Biology 1441_045; TA Manish, October 14, 2014 Citric Acid originates from lemons or other fruits in which it is sour in taste. It is said that photosynthesis consumes CO2 when aerobic respiration also known as cellular respiration produces it. Also it states that whenever more carbon dioxide is produced the more acidic the water…

All living things need to go through cellular respiration to convert sugars into energy. While this process usually involves oxygen, a type of respiration called fermentation does not (which is why it�s also called anaerobic respiration). Humans have long known about fermentation for use in bread and beverages, but have recently harnessed this for making fuel. One of the products of fermentation is ethanol, a kind of alcohol. Another is CO2, which can be measured to determine the rate of yeast…