LABORATORY REPORT Activity: Enzyme Activity Name: Angela Collins Instructor: Catherine Rice Date: 07.09.2014 Predictions Sucrase will have the greatest activity at pH 5 Sucrase will have the greatest activity at 70 °C (158 °F) Sucrase activity increases with increasing sucrose concentration Materials and Methods Effect of pH on Enzyme Activity Dependent Variable amount of product (glucose and fructose) produced Independent Variable pH Controlled Variables temperature‚ amount
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The cardiovascular system The heart is a major organ in the body‚ this organ pumps blood around the body‚ through veins‚ capillaries and arteries. The blood carries oxygen to our cells and also carries waste products which include water and carbon dioxide‚ which are products of respiration. Blood also helps spread out salts‚ enzymes‚ urea‚ nutrients‚ hormones and heat across the body. The structure of the heart The heart is located between lungs and it is protected by the rib cage‚ it is thought
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parts. THE DIGESTIVE SYSTEM Digestion is a process of breaking down large complex food substances into simple molecules that can be used by each cell. Most of the foods of organisms consist of carbohydrates‚ fats‚ and proteins. Each of these large molecules acted upon by special kinds of digestive systems that speed up digestion by hydrolysis or splitting of molecules. Food also includes smaller molecules such as water‚ minerals and vitamins. DIGESTION IN PLANTS Plants do not have
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Enzymes are protein‚ they are used to catalyse metabolisms in all organisms. They break down complex molecules and build up complex molecules from simple molecules‚ these two processes are catabolic reaction and anabolic reaction respectively. Enzymes are needed in these two processes to catalyse releasing and taking up ATP molecules. Different sequence of amino acid produces different structure of protein‚ which determines the property of protein‚ thus each kind of enzymes has its unique active
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LABORATORY REPORT Activity: Enzyme Activity Name: Daniel Franco Instructor: Professor Jennifer Frere Date: 03.08.2015 Predictions Sucrase will have the greatest activity at pH 6 Sucrase will have the greatest activity at 60 °C (140 °F) Sucrase activity decreases with increasing sucrose concentration Materials and Methods Effect of pH on Enzyme Activity Dependent Variable amount of product (glucose and fructose) produced Independent Variable pH Controlled Variables temperature‚ amount of
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ingested‚ poultry may also swallow small rocks. These rocks aid in the grinding of harder feed particles in the gizzard. Feed passes from the gizzard into the small intestine‚ where additional enzymes are added and digestion occurs. The small intestine also serves to absorb digestion products (proteins‚ carbohydrates‚ and fats). You should notice in the photo above that the first part of the small intestine loops around the pancreas (called the duodenal loop). The pancreas secretes digestive enzymes
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M38_MARI0000_00_SE_CH38.qxd 3/29/11 5:26 PM Page 245 R E V I E W S H E E T NAME ____________________________________ EXERCISE LAB TIME/DATE _______________________ 38 Anatomy of the Digestive System General Histological Plan of the Alimentary Canal 1. The general anatomical features of the alimentary canal are listed below. Fill in the table to complete the information. Wall layer Subdivisions of the layer (if applicable) Major functions mucosa 1) epithelium; 2) lamina propria; 3) muscularis
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units • Monosaccharides • Glucose‚ fructose‚ galactose • Disaccharides • Sucrose‚ lactose‚ maltose • Oligosaccharides consist of 3-10 sugar units • Not a simple or a complex carb • Complex carbs consist of 10 + sugar units • Polysaccharides • Starch and fiber Monosaccharides 6 carbons= hexose Monosaccharides • Glucose • Most abundant carbohydrate • Preferred source of energy for the RBC‚ brain‚ and nervous system • Fructose • Sweetest of natural sugars • Found abundantly in fruits • Part
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When a dog encounters food‚ saliva starts to pour from the salivary glands located in the back of its oral cavity. This saliva is needed in order to make the food easier to swallow. The fluid also contains enzymes that break down certain compounds in the food. In humans‚ for example‚ saliva contains the enzyme amylase‚ an effective processor of starch. Pavlov became interested in studying reflexes when he saw that the dogs drooled without the proper stimulus
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Digestion In Small Intestine While digestion continues in the small intestine‚ it also becomes a major site for the process of absorption‚ that is‚ the passage of digested food into the bloodstream‚ and its transport to the rest of the body. - The small intestine is a long‚ narrow tube‚ about 20 ft (6 m) long‚ running from the stomach to the large intestine. - The small intestine occupies the area of the abdomen between the diaphragm and hips‚ and is greatly coiled and twisted. - The small
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