“Citric Acid Levels in Commercial & Freshly Squeezed Lemon Juice” BY: SERENA GOVENDER Yr10 Question: To investigate the citric acid levels in commercial and freshly squeezed lemon juice Change: Type of Lemon Juice Why I Chose This Topic: I chose this topic because I was interested in investigating the level of citric acid in commercial and freshly squeezed lemon juice in order to compare results and suggest theories and ideas about what increases or decreases the acidity of the lemon
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Lab Exercise 8.5.1 Hormone Levels During The Menstrual Cycle a) WX represents the hormones‚ which stimulate the follicle‚ FSH‚ and YZ represents the thickening of the corpus luteum‚ done by LH‚ which produces progesterone (Y). b) The ovarian hormones released by WX is estrogen and progesterone is released by YZ. c) Estrogen and progesterone exert negative feedback effects. d) See attached graph. e) See attached graph. f) Before ovulation the temperature slowly decreases and
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tremendous impact of the Catholic Church. He provided the foundation for the King James Version of the Bible and believed that anyone could translate and have an opinion on the Bible‚ not just the Catholic priests. After reading it they then disagreed with what the Catholic Church was teaching them before and learnt that the Catholic Church was corrupt and people couldn’t buy their way into heaven‚ and soon people opposed the Catholic Church’s understanding of the Bible and started their own Protestant religions
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solitude after returning home from the war. Harold Krebs‚ a World War I veteran‚ attended school at a Methodist college in Kansas but enlisted in the Marines in 1917. Krebs now lives at home with his father‚ mother and two sisters where he spends his days reading books or playing pool. Krebs is careful to keep his life simple due to the fact that he isn’t fond of change. Is Harold Krebs apprehensive to making a change in his daily lifestyle? When Harold Krebs returns home late‚ his return is not celebrated
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Adolescence is the period of transition between childhoods to adulthood. It is a period when rapid physiological changes and demands for new social roles take place. The adolescents‚ due to these changes often face a number of crises and dilemmas. Adolescence is considered to start with the onset of puberty‚ which is as a period of transformation from a stage of reproductive immaturity to a stage of full reproductive competence. This period in the life span of a person makes them assume the ability
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CYCLES IN BIOLOGY This essay will give examples of cycles in biology from different scales of magnification‚ ranging from molecular level to populations and ecosystems. Cycles are sequences of events which repeat themselves in the same order‚ one event leading to the next. There are many examples of these in Biology. Cycles can be seen even at a molecular level in the body. An example of this would include the passage of action potentials down neurones in the nervous system. When the cell membrane
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Courage’’ and Ernest Hemingway’s ‘’Soldier’s Home’’ are about two soldiers who comes home from war uncelebrated. Harold Krebs and Paul Berlin have many similarities and differences. They are both soldiers and each have been fighting a war‚ Berlin the Vietnam war‚ Krebs World War 1. Both of the characters get antisocial and depressed by the war. The reader gets to know that Krebs is depressed and antisocial by him only giving short answers‚ which are mostly yes or no. Berlin‚ on the other hand‚ just
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What Causes Acid Rain? {2} {2} Acid rain caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into air. These substances can rise very high into the atmosphere‚ where they mix and react with water‚ oxygen‚ and other chemicals to form more acidic pollutants‚ known as acid rain.{2} Sulfur dioxide and nitrogen oxides dissolve very easily in water and can be carried very far by wind. As a result‚ the two compounds can travel long distances where
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Soldier’s home In the short story called Soldier’s home‚ by the Nobel Prize winning author Ernest Hemmingway‚ the main character Krebs has just returned from a war. A war can changes a human completely‚ which also is in common for Harold Krebs. All the values he has constructed in his life are now collapsed and suddenly he has to relate his life to the new values. It could be difficult to return to their home‚ because in their families’ opinion the soldier’s are the exact same person who left
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E R C I S E 10 Acid-Base Balance Respiratory Acidosis and Alkalosis The following questions refer to Activity 1: Normal Breathing. 1. What was the pH level during normal breathing? 2. Was this pH within the normal pH range? 2. Was this pH within the normal pH range? The following questions refer to Activity 2: Hyperventilation. 3. In run 1‚ what was the maximum pH recorded with hyperventilation? 4. What acid-base imbalance occurred with hyperventilation? 5. What happened to the
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