Review Sheet Exercise 8 Chemical and Physical Processes of Digestion NAME Dane Wilson LAB DATE/TIME august 4th Carbohydrate 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
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between healthy food and junk food Life today is not like how it was before. A long time ago‚ people ate food that was very good for their health. They ate food not contains chemicals‚ preservatives‚ artificial colours‚ and flavours. People also spent a lot of time cooks their own foods. Therefore‚ those people were not affected by the food that they ate‚ because all the foods that they had was natural and healthy. That is‚ they did not have any problems with their health. Foods can be classified
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HOW DOES FOOD IMPACTS ON HUMAN LIFE? A majority of people really do care about their health when they choose foods to eat. They always think: The food they eat must gives their bodies the "information" and materials they need to function properly. If they don’t get the right information‚ their metabolic processes suffer and their health declines. http://www.takingcharge.csh.umn.edu/explore-healing-practices/food-medicine/how-does-food-impact-health Espcially in Vietnam‚ most of people always
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Chemical reactions * Chemical reactions occur when substances undergo chemical changes to form new substances * Production of gas and change of color are sings of chemical reactions * Chemical reactions rearrange atoms * A reactant is a substance or molecule that participates in a chemical reaction * A product is a substance that forms in a chemical reaction Energy and Reactions * Energy must be added to break bonds. * Many forms of energy can be used to break bonds:
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Why There Should be a Limit on Food Additives For many centuries people have been adding things to preserve foods. An example of this is using salt to preserve meats or adding herbs to enhance the flavor of any other type of food. In recent years‚ however‚ the amount of additives in food has dramatically increased‚ and some of the items that are being added have been questioned by scientists as well as some consumers. Some additives have been known to cause sickness and contribute to the formation
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Name : ……………………………………………………………….. Date Due : …………………………………………………………….. Year 12 80% A 70% B AS Level Chemistry 60% C 2008 – 2009 50% D 40% E Below U Questions on % Haloalkanes 2.8 32 1. Chloromethane can be prepared by a reaction between methane and chlorine in the presence of ultraviolet radiation. (i) Outline the mechanism for this reaction. .....................................................................................
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I was assigned was the element Manganese. The symbol for manganese is Mn. It is number 25 on the periodic table. That means it has 25 protons and electrons even on mars or anywhere you go it will have the same protons and electrons. The atomic number would also be 25. It has 30 neutrons also in in the nucleus. The melting point for Manganese would be 1519 K (1246°C or 2275°F). The boiling point would be 1519 K (1246°C or 2275°F) according to http://education.jlab.org/. It also could be 1245.0 °C
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There are many types of chemical reactions‚ five general ones of which I will be describing. Chemical changes are a result of chemical reactions. All chemical reactions involve a change in substances and a change in energy. Neither matter nor energy is created or destroyed in a chemical reaction‚ only changed. There are so many chemical reactions that it is helpful to classify them into 5 general types‚ which include the following: synthesis‚ combustion‚ decomposition‚ single-replacement‚ and double-replacement
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it is recommended sex offenders involuntarily undergo chemical castration which will influence nonviolent society. This effect has the tendency of a non-threatening environment with its extended treatment on sex hormones to reduce the levels of testosterone‚ desires‚ and unwanted fantasies. Depending on the offender’s mental stability‚ they will be released from prison after this method. As members of our community‚ one should ask‚ “Is chemical castration an appropriate punishment for sex offenders
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Fast Food‚ Fat Food Nowadays‚ fast food is a very popular trend in Thailand. Teenagers think it is very smart when they go into the fast food restaurant‚ especially‚ the restaurant which is a part of foreign franchise restaurants. Not only teenagers that like fast food but also children and adults. In the busy schedule of modern times people have no time to prepare nutritious food during the day so fast food becomes a very convenient choice. However‚ there are several health issues related to consuming
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