OCR Psychology Revision G541 Methods and Investigations Contents 1. Key terms 2. Observation 3. Self-Report 4. Experiment 5. Correlation 6. Specification for G541 Key Terms Aim: What you are trying to find out- purpose of the study Causal Relationship: When one event causes another Confidentiality: Participants’ data should be kept anonymous unless they have given consent to make it public. Consent: Researchers need to obtain the participants’ full consent to take part in the study
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comparison‚ in 1867 he now has introduced his own Bill‚ which will increase the electorate substantially by including Borough Household Suffrage. When compared to what he had suggested in 1865‚ this is a far more Liberal act by Disraeli‚ and shows his reaction to the change in public pressure. The
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B1a Fitness and health 1. You should be thinking about the differences between health and fitness‚ concentrating on the causes and prevention of heart disease‚ which is the most common cause of death in the UK. 2. Have ideas on encouraging a healthy lifestyle e.g. ways to reduce the risk of heart disease and high blood pressure e.g. give up smoking‚ avoid eating high levels of salt and avoid eating high levels of saturated fat. 3. Know that the risk of developing heart disease can be increased
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occurred in 1931. The electron microscope is used to see molecular levels of the cell that cannot be seen by the naked eye. This has helped us drastically improve our understanding of cells. 5. The discovery of the mechanisms of light-independent reactions of photosynthesis was discovered in 1953. This discovery helps us in understanding how plants work‚ and how they get energy from light. 6. The DNA structure was first discovered in 1953. This discovery has lead us to understand more about
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Iodine Test for Starch Introduction and Hypothesis: In this experiment‚ we used iodine to test for starch in certain solutions. Iodine separates starch from polysaccharides‚ monosaccharides‚ and disaccharides. Starch is a curled polymer of glucose and iodine interacts with molecules‚ which changes the color of the molecules to a kind of black color. Iodine does not respond with carbohydrates that are not curled or coiled‚ thus the color stays yellowish brown. A black color result means that starch
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Show circuit frozen dog dinner. (2011?). Recuperado de la base de datos de UESAN (049167) S -. o . Circuit Froz;e n DogDinner !Ex~rut~-. ’ of’l)’!c=rr Pd ~ {fPiry·. lln :c .• lutJkt=d fonwnJ to d~ci:r nu::edng wilh repr ~k ·tíllllve:5 Qf ~W!t¡; Vi 1\ úl"’:l!ti Unl~i’liti~cd‚ lil mD.’i’ke~~Dg ~llrild ~c.h·cirtisi:J:ltt‚ c:onswtú:tg‚ rm. Th ~ p!JI’P’O!Iie o! · •~~ ’n ~ . to· R’Vl m pru~m ·rTP en~ ouo d:J.c houN!I:boh.i d ·.· fu~ lt:W’krt In li!litc: Bosto.mJ‚ Mass:~:ctmsc::tts.• mctro¡pQHt:m ~
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62 Iodine test for starch Amount of starch remaining Enzyme activity level Dark blue-black All None (0) Blue Most Low (1) Light brown Some Moderate (2) Gold None High (3) Part 1: Effect of Enzyme Concentration 1. Label five test tubes 1-5. Place 4 mL of 1 % starch in each of the first four test tubes. Place 4 mL of amylase solution in the fifth tube. Place all of the tubes in the 37°C water bath for 5 minutes. Obtain 5 clean droppers and label them 1-5. (To avoid contamination of these solutions
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important to all metabolic functions in the human digestive system. It is found that benedict’s solution‚ when heated makes a yellow-orange colour to indicate the simple sugars. Iodine is the indicator of a complex carbohydrate.Without enzymes that help these metabolic events absorption during digestion would be without
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1.0 Introduction According to (Baillie et al.‚ p. 307; Palmer‚ p. 19) “A clock is an instrument used to indicate‚ keep‚ and co-ordinate time. The word clock is derived ultimately (via Dutch‚ Northern French‚ and Medieval Latin) from the Celtic words clagan and clocca meaning "bell". A silent instrument lacking such a mechanism has traditionally been known as a timepiece.” Design and accuracy of clocks have evolved along with progression of technology and industry and even though their main
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Iodine is an element that is critical for normal function of the thyroid gland‚ which is a key regulator of the body’s basic metabolic rate. Iodine is a micronutrient‚ meaning we require only small amounts of it. For example‚ adults need about 150 micrograms of iodine in the form of iodide ion per day. However‚ an insufficient supply of iodide via diet and drinking water causes the non-cancerous enlargement of the thyroid gland known as goiter. Prolonged lack of iodide can lead to loss of thyroid
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