DISCUSSION: Bromelian added to Gelatin: Bromelian is an enzyme found in pineapples. When Bromelian is added to gelatin it breaks down the protein and does not allow the gelatin to solidify. There are several factors that can cause an enzyme to slow down or to completely stop reacting. For example‚ temperature and pH can effect enzyme activity. Canned pineapple juice and fresh pineapple juice were used to see how the enzyme would react differently. In fresh pineapple juice the Bromelian have would
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Each cell can be regarded as a metabolic compartment‚ as separate place where the chemical processes of that cell occur‚ the cell is made up of different organelles each specifically designed to carry out their function‚ and this is known as a cells ultrastrucure. All cells have a cell surface membrane; these are made up of phospholipids and make up a bilayer. A phospholipid has a hydrophilic head and a hydrophobic tail which is made up of 2 fatty acid chains; these are arranged is two layers with
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EXPLORING THE EGG CELL By: Christina Vu SNC2D3 Mr.Ram FUNCTION OF THE EGG CELL: The egg cell is the female gamete used for sexual reproduction. The egg cell is responsible for providing half of the genetic material required for reproduction. When the egg cell joins with the sperm cell.... The egg cell is large and bulky structure which allows the sperm cell to get in easily. WHAT ORGANELLES DOES AN EGG CELL HAVE AND THEIR FUNCTION? Mitochondria: Produces energy for the cell by a process called
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Broadly speaking‚ enzymes are proteins that is produced to perform as a biological catalyst in chemical reactions. Catalyst are used to increase the rate of a chemical reaction. In this study‚ we performed two different experiments that investigated the effect of varying substrate concentration‚ and the effect of temperature on the rate of Enzyme-Catalase reaction. In experiment one (i.e. the effect of varying substrate concentration on the rate of enzyme-catalase reaction) we tested the hypothesis
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The Cell membrane surrounds all living cells and is the most important organelle‚ there is also a similar plasma membrane that surrounds all the organelles except for the ribosome. The membrane controls how and what substances can move in and out of the cell/organelle The structure of the membrane is often referred to as the “Fluid Mosaic Model”; this is because of the way it is structured It is composed of phospholipids‚ proteins‚ and carbohydrates‚ which are arranged in a fluid
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reaction will be highest. This relate to other resources‚ such as books and the internet‚ which show that the optimum pH value for catalase is pH7‚ therefore there is no difference between the optimum pH and the pH used in the experiment‚ hence the enzyme structure is not affected by the pH and is most active. However the graph inadequately supports the second part of the prediction‚ that the rate will be lowest‚ the more acidic or alkaline the pH level is. For instance when the rate starts of
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101 16 October 2012 How Have Cell Phones Changed Society What would you do without your cellphone? Most people wouldn’t know what to do. Cell phones are a part of almost everybody’s life‚ but it never used to always be like that. If people wanted to get in touch with you back then‚ they left messages with your office or on your machine (SHC). Cell phones have changed the society we live in today. When investigating how cell phones have changed society‚ one must consider how it changes people‚ businesses
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same genetic code. How does a universal genetic code relate to the hypotheses about the origin of life on Earth? the near-universal genetic code is that all extant things share some type of common ancestor. How are self-replicating molecules‚ such as RNA molecules in the “RNA World” hypothesis‚ essential to the most popular hypotheses about the origin of life on Earth? They reproduce‚ and could have been formed through abiotic chemistry on the early Earth. How might similarities
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SPECIALIZED CELL ANIMAL Sperm cells PLANT Xylem cells are specialised to find a female cell (egg cells) and join with it. They have tails‚ that makes them move in water to find and fertilize the female cell. They can move because they have many mitochondria located between the tail and the head‚ which gives them energy. In the head‚ there is a vacuole filled with acrosome‚ which is a specialized Lysosome that releases enzymes in order for the Sperm Cell to break into the Egg Cell‚ through the
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"Monopoly power is not automatically bad as long as it is regulated". Discuss this view [20marks] Monopoly power occurs when a business is a dominant seller of a good or service with a market share that exceeds 25%. There are many disadvantages for societies where monopolies exist. A higher price than those in competitive markets is one of the main disadvantages for society. As monopolies are the main seller of goods and services in the market they can use their market power in order to raise
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