Biology Exam 2013 - Review UNIT: PATERNS OF INHERITENCE Describe Mendel’s experiments: * Chose a female parent; chooses a male parent; pollen is collected from the stamens and dusted onto the female parent stigma; pollen fertilizes the eggs. The ovary develops into the pod and eggs develop into the peas; when peas are planted they develop into pea plants. Why Pea Plants? * Easily obtained * Grown quickly; several generation of peas can be observed * Traits are easily visible
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process of digestion of proteins‚ carbohydrates and lipids in humans. (Total 6 marks) 4. Draw a labelled diagram of the digestive system. (Total 5 marks) 5. State the sources‚ substrate‚ product‚ and optimum pH conditions for the enzyme amylase. (Total 4 marks) 6. Describe the role of enzymes in digestion with reference to two named examples. (Total 5 marks) 7. What sequence of organs do substances pass through‚ as they move through the human digestive system? A. Mouth ® stomach
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activity of Polyphenol Oxidase and Peroxidase when mixed with catechol‚ caffeic acid‚ pyrogallad‚ tyrosine‚ guacol‚ and water‚ to test the effect of inhibitors on these enzymes‚ to show the specificity of Polyphenol Oxidase and also the effect of amylase on starch. Theory: Enzymes are large molecules that increase the rates of chemical without themselves undergoing any change (Bettelheim‚ Brown‚ Campbell and Farrell 2010). Enzymes are the catalyst of biological processes; they bring the reaction
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the absence of food and smell. He quickly realized that this salivary response was not due to an automatic‚ physiological process. The Development of Classical Conditioning Theory Based on his observations‚ Pavlov suggested that the salivation was a learned response. The dogs were responding to the sight of the research assistants’ white lab coats‚ which the animals had come to associate with the presentation of food. Unlike the salivary response to the presentation of food‚ which is an unconditioned
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Digestive System Enzymes Digestion of Carbohydrates in relation to Ph. levels 2012 HAUBER-SIX‚ Janina Queensland Government 1/1/2012 Digestive System Enzymes Digestion of Carbohydrates in relation to Ph. levels 2012 HAUBER-SIX‚ Janina Queensland Government 1/1/2012 The follow experiment was prepared‚ conducted and analysed in order to test at which pH level starch will be digested at fastest. The digestive system is a complex network of organs as well as other structures
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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Subsidiary Level and Advanced Level CHAPTERS CLASSIFIED:ENZYMES 9700/2 BIOLOGY Paper 2 Structured Question AS For year 2014 Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a soft pencil for any diagrams‚ graphs or rough
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Spit Lab were to test for starch‚ a reducing sugar‚ and effect of amylase on a piece of bread that is positive for starch and negative for a reducing sugar. Iodine would test if starch was present if the bread solution changes to a dark black/blue color. Benedict’s Solution mixed with the cracker and heated would test for a reducing sugar (if reducing sugar‚ it will turn from a green to an orange to a dark brownish color). The amylase was tested on a piece of potato by heating it in Benedict’s Solution
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Part 1: Part 2: Parotid salivary gland: It is located by the pharynx and on the cheek. I will remember this because the parotid salivary gland has the key word saliva which is in the mouth. Pharynx: Located in the neck; and‚ I will remember where the pharynx is located because it starts with the letter P which is right across from the parotid salivary gland on the picture. Esophagus: Located in the middle of the body and it is a long tube. I will remember where the esophagus is located because
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Human Digestion SCI/241 Human Digestion The beginning of the digestive process starts with the smell and sight of food which activate the salivary glands. The mouth is the point at which food enters the digestive tract and continues the digestive process by chewing food. The food is then broken down into pieces and moistened by salivary glands which turn food into a bolus. The bolus goes down the pharynx into the esophagus which connects the pharynx to the stomach. The stomach is an organ
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PsychSim 5: CLASSICAL CONDITIONING Name: Section: Date: This activity provides a review of Pavlov’s famous experiment on the salivary response in dogs‚ as well as the basic processes of classical conditioning: acquisition‚ generalization‚ discrimination training‚ and extinction. Salivary Response • In Pavlov’s famous experiment‚ what did he call the… o unconditioned stimulus (UCS)? Meat powder (a stimulus that is natural or automatic). o unconditioned response (UCR)? Saliva flow (an unlearned
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