1. I want to start with a picture of a doughnut. The reason why is because when we see it you begin to salivate because you might want to eat a doughnut. But it also has a hole in it‚ and if you were to stick your finger through the hole in a doughnut‚ that a lot like food moving through the hole that is your digestive system. In other words its going to move all the way from your mouth out your anus. But its not realy inside of you. When you stick your finger through the hole of a doughnut it not
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Alimentary System 1.1 – The burden of GI diseases • List the names of the organs of the alimentary tract • Mouth and Oesophagus • Stomach • Liver • Biliary system • Pancreas • Small intestine (consisting of duodenum‚ jejunum and ileum) • Large intestine (consisting of colon‚ rectum and anus) • Describe the symptoms and signs of alimentary tract disease Symptoms: General: • Anorexia • Weight loss • Anaemia
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Chapter 10 Digestion and Nutrition Multiple Choice Questions 1. Plankton is a. Any organic debris in the ocean B. Plant and animal microorganisms drifting in the ocean c. A group of filter-feeding microorganisms d. Oceanic bacteria e. Seaweed 2. Examples of a suspension feeder and a deposit feeder would be‚ respectively‚ a. Clams and fish B. Polychaete annelid and earthworms c. Earthworms and rotifers d. Basking sharks and rotifers e. Earthworms and clams 3. The evolution
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erythrocytes . As bicarbonate ion in plasma . None of the above 28. Which of the following changes in blood would INCREASE the amount of O2 released by hemoglobin to body tissue? . Decrease in temperature . Decrease in pH . Decrease in biphophoglycerate (BPG) levels . Both A and C . None of the above TRUE/FALSE: Choose (A) for True or (B) for False for #29-34 29. Lung compliance describes how easily the lungs can be expanded (A) 30. Sympathetic
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concentration. The enzyme used in this investigation was Trypsin‚ this is an enzyme used to degrade proteins‚ and it is a proteinase enzyme. Trypsin is one of the three main digestive proteinase‚ the two others include pepsin and chymotrypsin‚ the jobs for their types of enzymes is to break down dietary proteins e.g. casein‚ into peptides and amino acids. Trypsin is produced by the pancreas and has a very similar structure to chymotrypsin; the Trypsin we used was from a beefs pancreas. Apparatus used
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organisms that has been affected by it. The people have been wondering‚ “What can be an effective and natural insecticide?” Soybean (Glycine max) is a common plant in the Philippines. Studies shows that it contains a certain substance known as trypsin inhibitor that slows down the growth of an animal. Along with the other ingredients‚ is the powdered soybean feasible to be used as mosquito larvicide? Statement of the Problem: In order to provide
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Experiment 4: Enzyme Kinetics. Results/Discussion Week 1 Part A: Table 1. Enzyme activity for each assay of 4-nitroaniline formation. Rate of 4-nitroaniline formation Name of trial Abs/sec Abs/min M/min mol/min µmol/min #1 0.00003 0.0018 2.05x10-7 2.15 x10-10 2.15 x10-4 # 2 0.00010 0.0060 6.81x10-7 7.15x10-10 7.15x10-4 # 3 0.00020 0.0120 1.36x10-6 1.43x10-9 1.43x10-3 # 4 0.00030 0.0180 2.00x10-6 2.10x10-9 2.10x10-3
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CORE BIOLOGY PRACTICALS You will need to know these practicals as the exam board may ask you questions based on them. Below is a summary of each one. Name of practical and independent & dependent variables Effect of caffeine on Daphnia heart rate Independent: caffeine concentration Dependent: heart rate of Daphnia Measuring the content of Vitamin C in fruit juice Independent: fruit juice Dependent: volume of juice required to decolourise 1cm3 of DCPIP The effect of temperature on cell membranes
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help moisten and dissolve food‚ saliva is made up of water‚ mucus‚ a bacterial agent and also has a carbohydrase enzyme called salivary amylase which helps convert starch into maltose. An enzyme‚ lysozyme destroys harmful bacteria‚ and saliva has a pH of 6.8; salivary also activates taste buds and lubricates the mouth. Teeth play a large part within the mouth by chewing and crushing food into smaller pieces to be swallowed‚ there are 4 types of teeth and they play all play a part‚ incisors are
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PROTEIN Lesson 1 All material designated for higher level only is presented in italics |Syllabus content to be covered: | | | |Composition | |Basic structure
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