Biology Final Essay - 1347 Words

A. Fermentation Lab- The basic process Prepared 3 beakers with contents listed below. ( a. Beaker 1: glucose only b. Beaker 2: Starch only c. Beaker 3: Starch + amylase). Poured contents of each beaker into its respective fermentation tube, ensuring the tail portion of the tube was filled with liquid. Placed tubes in an incubator at 37 degrees, measuring distance between tip of tube tail to fluid level at 20, 40, and 60 minute intervals. Calculated gas volume using this distance along with radius of tube tail. o Why is alcohol fermentation needed in yeast to carry out glycolysis In an environment absent of oxygen, yeast undergoes alcohol fermentation in order to continue ATP production but also to recycle NAD+ that is needed for†¦show more content†¦Starch needs to be broken down to glucose in order for fermentation to occur. There is no enzyme in this beaker to break down the starch. Beaker 3 – CO2 will be produced the second fastest. As amylase is in this beaker, starch can be broken down to its monomer unit but it will not be as fast as Beaker 1 since the latter already contains its monomer units. 5. Given the data, be able to graph the data and discuss whether the data match the experimental predictions (without doing statistical analysis) This is at the discretion of the instructor. May be a line graph or bar graph, charting volume at each interval, or charting the total volume after 1 hour, or something else B. Photosynthesis experiment o Gross versus net photosynthesis Gross – total products produced from the conversion of light to chemical energy (i.e. total sugar, O2, etc.) Net – total defined above minus the amount of products cycled back for respiration o Overall gas exchange of a plant As photosynthesis occurs, leaves take in CO2 from the bicarbonate solution and produce O2 gas, which displaces the infiltration liquid currently filling the intracellular spaces of the leaf disks o Relationship between light levels and gas exchange in plants In this lab the treatment with the higher light intensity produced the higher rate of photosynthesis, faster rates of CO2 was consumption, and O2 production, compared withShow MoreRelatedBiology Final Paper : Biology1909 Words   |  8 Pages Biochemistry final paper I think that one thing that attracted me to biochemistry was how essential it is to the growth and prosperity of human life. 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