“Up and down‚ up and down – that is how temperature and climate have always gone in the past and there is no proof they are not still doing exactly the same now. In other words‚ climate change is an entirely natural phenomenon‚ nothing to do with the burning of fossil fuels” (David Bellamy). To what extent do you agree with this statement? The idea of climate change‚ for many‚ is an opinionated subject with much discussion of whether it is a real issue or just a natural phenomenon. However in recent
Premium Global warming Climate change Carbon dioxide
which part of the GI tract? stomach 14. Regarding the effect of temperature on enzyme activity‚ what was the independent variable? Temperature 15. State the optimum pH for sucrase activity. PH of 6 16. What happens to the activity of sucrase as the pH becomes more alkaline? Temperature increases 17. Compare optimal temperature for sucrase activity to body temperature. Sucrase temperature is more active when it close to body temperature. 18. How would a slight fever affect sucrase activity? Increase
Premium Carbohydrate Nutrition Metabolism
Bio Lab Report In part II of the Organic Compounds in Foods lab‚ we to examining whether or not the starch in the saltine cracker can chemically break down in sugar with the presence of salivary amylase‚ which is an enzyme found in your mouth which assists in digestion. My group and I were instructed to obtain a saltine cracker from our teacher and chew on it for approximately 2 minutes. After concluding the chewing‚ we then grabbed a beaker and spit our slimy and chewed cracker into it. Subsequently
Premium Digestion Enzyme Starch
this test is salivary amylase which can found in saliva. Salivary Amylase‚ is called ptyalin it’s to break down starch to sugar. Things we ate is broken down in mouth by amylase. Amylase hydrolysed starch into a reducing sugar which can give beneduct test a positive result. Body temperature is the optimal temperature for the action of amylase. Enzymes are catalysts for any reactions. They provide an alternative way of lower activation energy to speed up the reaction. When the temperature is low‚ the
Premium Starch Enzyme
Processes of Digestion: Activity 1: Assessing Starch Digestion by Salivary Amylase Lab Report Pre-lab Quiz Results You scored 16% by answering 1 out of 6 questions correctly. 1. The substrate for amylase is Your answer : a. maltose. Correct answer: e. starch and carbohydrate. 2. Which of the following is true of enzymes? Your answer : b. They are used up in the reaction. Correct answer: c. Their activity can be affected by temperature and pH. 3. The reagent IKI tests for the presence of Your answer
Free Enzyme Starch Amylase
Digestion The following questions refer to Activity 1: Assessing Starch Digestion by Salivary Amylase. 1. At what pH did you see the highest activity of salivary amylase? Why? 7.0 because that is when the salivary is most effective and it breaks down carbohydrates. 2. How do you know that the amylase did not have any contaminating maltose? We used a negative control to see if there is any amylase in the maltose. 3. What effect did boiling have an
Premium Enzyme Digestion Starch
contains salivary amylase enzyme‚ which breaks down the glycosidic linkage between glucose that found in starch and hydrolyzes starch into glucose at optimum temperature of 37°C‚ that is similar to human body temperature and show positive results to Benedict’s test The salivary amylase enzyme is denatured at 95°C as the enzyme lost in structure. In the experiment‚ test tube 1 and 4 is added with saliva and brown-orange solution with precipitate is present by test tube 1 at temperature of 37oC in
Premium Starch Polysaccharide Enzyme
Assessing Starch Digestion by Salivary Amylase 1. List the substrate and the subunit product of amylase. _starch & maltose respectively__ 2. What effect did boiling and freezing have on enzyme activity? Why? How well did the results compare with your prediction?__Boiling caused amylase to be denatured‚ thus inactivating the enzyme. Freezing has no effect. The function of an enzyme is directly related to its environment‚ like temperature.__ 3. At what pH was the amylase most active? Describe the
Premium Enzyme Starch Digestion
substrate that will form its products. The purpose of the experiments is to determine the effects of substrate concentration‚ reaction time and enzyme concentration on the direction of an enzyme reaction. Amylase is a digestive enzyme found in both the saliva and the small intestine. Salivary amylase is a hydrolytic reaction that breaks down starch molecules by systematically breaking off the maltose molecules from the ends of starch chains. The maltose is further broken down by another enzyme. Phosphorylase
Free Enzyme Starch
Scholars Research Library Archives of Applied Science Research‚ 2012‚ 4 (5):2184-2190 (http://scholarsresearchlibrary.com/archive.html) ISSN 0975-508X CODEN (USA) AASRC9 Effect of Rhythmic Aerobic Training on Mood Status Profile and Salivary Alpha Amylase in Non-athlete Students M Yektayar1‚ M Saham2‚ S Ahmadi3 and M Khodamoradpoor1 1 Department of Sport Science‚ Islamic Azad University‚ Sanandaj Branch‚ Iran 2 Beheshti University GC‚ Tehran‚ Iran 3 Department of Physical Education Razi
Premium Strength training