Enzymes and Digestion 0.0 / 5 ? BiologyEnzymes and digestionDigestionGCSEAQA Created by: MaxR1Created on: 13-02-17 18:13 What are enzymes also known as? Bological Catalysts 1 of 30 What do enzymes do to biological reactions? Speed them up 2 of 30 What do we call the special shape on an enzyme molecule The Active Site 3 of 30 What are enzymes made of? Protein 4 of 30 What is created when an enzyme and substrate combine together? An Enzyme - Substrate Complex 5 of 30 What is lost when an enzyme is denatured? The shape of the Active Site 6 of 30 Write down two factors that can cause denaturing? Overheating and Extreme pH 7 of 30 Where are the enzymes involved with Aerobicrespiration found? Mitochondria 8 of 30 Name two other processes sped up by enzymes Digestion, Respiration, Photosynthesis 9 of 30 Can you kill an enzyme? No, but it can be denatured 10 of 30 What are Carbohydrases? They are enzymes that break down carbohydrates (e.g. Starch) into Sugars in the mouth and S. Intestine 11 of 30 Give an example of a Carbohydrase? Amylase 12 of 30 What are Proteases? They are enzymes that break down protein into Amino Acids in the stomach and S. Intestine 13 of 30 Give an example of a Protease? Pepsin 14 of 30 What are Lipases? They are enzymes that break down lipids into Fatty Acids and Glycerol in the S. Intestine 15 of 30 Where is bile made? In the liver 16 of 30 What is Pepsin's Optimum pH pH 2 17 of 30 What are carbohydrates made up of? Units of sugar? 18 of 30 What are Simple Sugars? They are carbohydrates that contain only one or two sugar units 19 of 30 What is the test for starch? Add on a drop of (brown) iodine solution on the tile. A blue-black colour indicates the presence of starch. 20 of 30 What is the test for Lipids? Add ethanol and shake thoroughly. Positive Result: A layer of cloudy white suspension forms at the top of the solution 21 of 30 What is the test for protein? Add 3 drops of Biuret reagent solution to the test tube. Note any color change. Proteins will turn solution pink or purple. 22 of 30 What does the stomach do? It breaks down large insoluble molecules into smaller soluble molecules - digests food 23 of 30 What does the Small Intestine do? It breaks down large insoluble molecules into smaller soluble molecules and absorption 24 of 30 What does the Large Intestine do? Absorbs water from undigested food. 25 of 30 What does the Pancreas do? It makes and releases digestive juices 26 of 30 What does the Gall Bladder do? It is mainly a storage organ that helps in the digestion of fat and helps to make bile more concentrated to increase its effect on fat cells. 27 of 30 What is the Epithelial Tissue? It covers the inside and outside of an organ. 28 of 30 What is the Muscle Tissue? It churns the food and digestive juices of the stomach together 29 of 30 What is the Glandular Tissue? It produces digestive juices, enzymes etc. that break down food. 30 of 30
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