College Level Biology Enzyme Essay

Enzyme Lab Report Essay

2194 Words9 Pages

Section 1. Introduction
“Enzymes are proteins that have catalytic functions” [1], “that speed up or slow down reactions”[2], “indispensable to maintenance and activity of life”[1]. They are each very specific, and will only work when a particular substrate fits in their active site. An active site is “a region on the surface of an enzyme where the substrate binds, and where the reaction occurs”[2]. “Lactase is an enzyme that breaks down lactose, the sugar in milk. It is produced by the cells lining of the small intestine. Most people are born producing it, but often make less of it as they age, which causes lactose intolerance the symptoms for this include nausea, bloating, and diarrhea to name a few. This enzyme is produced…show more content…

Section 1. Introduction
“Enzymes are proteins that have catalytic functions” [1], “that speed up or slow down reactions”[2], “indispensable to maintenance and activity of life”[1]. They are each very specific, and will only work when a particular substrate fits in their active site. An active site is “a region on the surface of an enzyme where the substrate binds, and where the reaction occurs”[2]. “Lactase is an enzyme that breaks down lactose, the sugar in milk. It is produced by the cells lining of the small intestine. Most people are born producing it, but often make less of it as they age, which causes lactose intolerance the symptoms for this include nausea, bloating, and diarrhea to name a few. This enzyme is produced commercially as a dietary supplement to help them digest the lactose”[3]. The purpose for this experiment is to study the enzyme specificity and if its function is under the influence of environmental factors such as pH and temperature. To test the specificity we used lactase in several test tubes in the presence of lactose and sucrose to figure out which one would result with the highest concentration of glucose, which is one of the lactase products. The test tubes each contained, milk (lactose), or sucrose, and either lactase enzyme or water, which is used as a negative control. We hypothesized that the enzyme is specific, and will break down lactose, but not sucrose. We then found out our hypothesis is accurate because it proved that

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For more information about enzymes see Enzymes. Enzymes, also known as "biological catalysts", are chemical elements that catalyze, and speed up the breakdown of complex food into simple nutrients. Here are a few and what they do:

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Enzymes are sensitive. Each enzyme acts at a specific temperature, specific pH, and on a specific substrate (food upon which the enzymes act). For example, salivary amylase (found in the saliva of the mouth) works best at neutral pH, whereas gastric enzymes work best in acidic medium, and the intestinal or pancreatic enzymes work best in basic medium. The Optimum Temperature of enzymes is 37 &degrees;C, which is the normal human body temperature. The enzymes become inactive at 0 &degrees;C and are destroyed at 60 &degrees;C.

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How to remember the enzymes in the digestive system?

I am doing access course in biology about the digestive system. I have an exam on the digestive system and enzyme

ScienceAid QnA. There are several ways you can remember the names of enzymes.

1) Sometimes, the name of the enzyme shows what substrate it acts on. For example, protease and peptidase digest proteins and peptides respectively. Whereas lipase digests lipids, and amylase acts on sugars.

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2) In the digestive system, each enzyme is secreted and acts in a different medium. For example, pepsin (for proteins) is an enzyme that acts in acidic medium (therefore it should act in the stomach). Trypsin is an enzyme that acts in basic medium, therefore, it should act in the small intestine.

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3) Third, by using logic. Remember, the sugar digestion starts in the mouth and continues in the small intestine, so the enzymes of the sugar molecules should be found in the mouth and the small intestine. The protein digestion starts in the stomach and continues to the small intestine, therefore, the proteases and the peptidases should be in the stomach and the small intestine. The lipid digestion starts in the small intestine, therefore lipases will be in the small intestine.

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I don't know how detailed your course is, If you have further questions do not hesitate to contact us.

Thank you

How can I write an essay question on enzymes in digestion?

I have to write an essay for my college course on the digestive system can you help me?

ScienceAid QnA. We can give you hints and help you find the source. However, you have to read and write on your own.

For example, you can first define digestion, then in the body paragraphs, you can talk about the 2 types of digestion, and in each part mention where each type of digestion takes place and what are the enzymes involved. As a conclusion, you can talk about the different enzymes and how specific they are.

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Do you have any names or dates I can use to reference this article?

Hi Jamie,... I am referencing your article and not sure who to put as the author or the publication date, as this information I cannot find on the page. Thought I should contact you, any details would be greatly appreciated. Regards. (I'm not entirely certain what to put here, I haven't seen anybody ask this question already)

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ScienceAid QnA. To reference an article from the website please check the part: "Referencing this article" If you need further assistance please do not hesitate to contact us

I am just reviewing the digestive system. Looking for information to help clarify peristaltic movement through longitudinal and circular muscles?

I really appreciate this website. I am enjoying reviewing the process of the digestive system. And I look forward sharing the site with my Biology students to also review over. I have not finished the article, I am looking for a website to help my students review information on the digestive system. I am trying to find two items in specific, list of enzymes that note where reactions occur and information on longitudinal/circular muscles.

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I'm happy to hear that you are enjoying the site! Without know the age or level of your students, I'm not sure how accurate the information I've compiled for you is, BUT I was able to find some resources for you that I hope will help.

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Enzymes

  1. 1

  2. 2

  3. 3

Circular Muscles

  1. 1

  2. 2

  3. 3

I hope these resources help!

Name the enzymes that are found in the mouth: duodenum, and ileum?

I was given an assignment which is due tomorrow. I was asked to name the enzymes that are found in the digestive system. The answers that I want are not given.I really need these answers as it can broaden up my mind and help me to gain better understanding

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The enzymes found in the mouth are:

  • Salivary Amylase.
  • Lysozyme.
  • Lingual Lipase.
  • Salivary Kallikrein.

If you need to reference this article in your work, you can copy-paste the following depending on your required format:

APA (American Psychological Association)
Digestive System, Enzymes, Absorption in the Small Intestine. (2017). In ScienceAid. Retrieved Mar 11, 2018, from https://scienceaid.net/biology/humans/digestion.html

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MLA (Modern Language Association)"Digestive System, Enzymes, Absorption in the Small Intestine." ScienceAid, scienceaid.net/biology/humans/digestion.html Accessed 11 Mar 2018.

Chicago / TurabianScienceAid.net. "Digestive System, Enzymes, Absorption in the Small Intestine." Accessed Mar 11, 2018. https://scienceaid.net/biology/humans/digestion.html.

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