Proteins | | Enzymes | | Factors affecting enzymes | | Enzymes practical | |
What are proteins and can you list some examples of proteins found in the body? Proteins are large molecules made up of long chain of amino acids. Examples of proteins are biological catalysts such as enzymes like protease, amylase, lipase etc. C | What do the terms ‘catalyst’ and ‘enzyme’ mean? Catalyst means a substance that speeds up a reaction without getting itself used up. Enzyme is a protein that acts as a biological catalyst. C | List all of the factors that affect how well enzymes work. C | What are the dependent and independent variables? C |
What are the functions of these proteins? Proteins are used for growth and repair purposes for structural components of tissues, they also work as hormones and catalyst. B | What is the active site and why is this important? he active site of an enzyme us the site that recognizes and binds to said enzyme’s substrate. Without the active site the enzymes cannot catalyse it’s function. B | How does the activity of enzymes change as the temperature or pH changes? How do you identify the optimum conditions? B | What can you conclude from your results? B |
Can you explain the structure of a protein? It’s made up of 20 different amino acids A | What would happen if the shape of the enzyme was to change? If the enzyme of the enzyme changes the substrate wouldn’t match the enzyme’s shape, then the reaction won’t be catalysed. A | Why does a change in pH or temperature affect the enzymes in this way? | How would you modify the experiment or reproduce it differently to improve reliability? A |
The Essay on Outline how changing external influences affect organizations
This report consists of analysis of three different new articles of indicating firms with different issues which have been affected by different external influences and what impact on the firm and the activates which they are involved in. External influences are something which a firm has to think about as it can cause considerable changes to the firm. How the firm changes depends on the business ...
Enzymes in digestion | | Changing pH in the gut | | Using Enzymes | | | |
List the enzymes involved in digesting food & state where they are made. Amylase made in salivary glands, pancreas and small intestine and it works in mouth and the small intestine. It’s job is break starch into sugars. Protease made in stomach,pancreas and small intestine and works in the stomach. Protease breaks down proteins into amino acids. Lipase are made in pancreas and small intestine and works in the small intestine. It’s job is to break Lipids into glycerol and fatty acids. C | Where is bile produced and where is it stored? Where does it act? Where is hydrochloric acid produced? Bile is produced in the liver, stored in the gall bladder and released released in the small intestine. C | Describe some uses of enzymes in industry and why they are used. C | |
What type of foods do these enzymes digest & what are the products? Lipase breaks down lipids into glycerol and fatty acids. Amylase breaks down starch into glucose. Protease breaks down proteins into amino acids. B | Why is bile and hydrochloric acid produced; what is their role? The HCL in the stomach makes the pH too acidic for enzymes in the small intestine to work properly. Bile is alkaline it neutralises the acid and makes conditions alkaline for the small intestine to work well. Bile also emulsifies fats. In other words, it breaks the fat into tiny droplets , this gives a much bigger surface area of fat for the enzyme lipase to work on which makes its digestion faster. B | How do biological detergents work and why is the temperature at which they are used important? B | |
The Term Paper on Small Intestine Stomach Food Cells
... the small intestine by Pancreatic enzymes Brush border enzymes o Absorbed in by active transport in the capillaries of the small intestine. Proteins: break to amino acid so ... form of pepsin (protein digesting enzyme) o Activated by contact w/ HCl. Pepsin only works well in acidic environment, the stomach. ... b / c not a lot of surface area to work on. Bile has bile salts made from cholesterol o Allow ...
Why do the food molecules need to be digested and what are they used for? They need to digested so they can go through the gut wall and get absorbed by the blood, so we can get nutrients for our body. A | Can you explain what happens to the food molecules as they pass into the stomach and on into the small intestine? In the small intestine duodenum is where the food is mixed with the bile which is stored in the gall bladder for the small intestine to work well as it’s enzynes works best in those conditions. A | What are the advantages and disadvantages of using enzymes in industry? A | |
