genetic information and copies itself (replication) to pass on the information • Contains genes (instructions to make proteins) • Instructs cell’s activities DNA Structure • DNA is a polymer of nucleotides • Chromosomes (DNA strand + associated proteins ie. Histones wrap DNA around like a spool = condensed chromatin) ↓ genes (sections of a chromosome that codes for a protein) ↓ nucleotides (3 parts: phosphate‚ deoxyribose sugar‚ and nitrogen base) • • • Double helix shape - Held together
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Lab #5: Refraction of Light Theory: Refraction can be defined as the bending of a wave when it enters a medium which causes it to have some reduced speed. In terms of light‚ refraction occurs when the ray passes through some medium which slows its speed; such as water or glass. In this instance the ray tends to bend towards the normal of the medium. The amount of bending or refraction which occurs can be calculated using Snell’s Law (). Objective: To measure the index of refraction of Lucite
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1) Homeostasis is the condition in which the body maintains a. changing state‚ within an unlimited range. b. an equilibrium point that can change over a narrow range that is compatible with maintaining life c. an equilibrium change that balances external and internal environment such that values of each are equated 2) Anabolism is the a. breakdown of matter. b. expulsion of matter. c. synthesis of matter. d. All of the answers are correct. 3) The sum
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Objective: To investigate how pH affects the rate of protein digestion Hypothesis: I predict that since pepsin breaks down the material the quickest at a pH of 2 in the stomach‚ test tubes #3 will reduce the greatest because it has pepsin to further break down the egg. Whereas the other test tubes will have a smaller reduction. I think test tube #2 will have the second largest reduction rate and then #6 because they all will have a greater rate at breaking down the material‚ Then‚ I predict the
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A. Proteins- A protein is a naturally produced macromolecules that are made of carbon‚ hydrogen‚ oxygen‚ nitrogen‚ and chains of amino acids. The amino acids are building blocks for all our cells. Proteins main function is to help in tissue repair and growth. There are three different types of proteins. Fibrous proteins help in forming muscle tissues‚ tendons‚ bones‚ and connective tissue and some examples of these are Actin‚ Coronin‚ Elastin‚ and Myosin. Globular proteins help in regulating
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Protein is important! 1Protein is important because its an essential nutrient found in animal products‚ nuts‚ and beans. The name protein name comes from the Greek word protos‚ which means “first.” Your body uses proteins in your diet to build new cells‚ maintain tissues‚ and synthesize new proteins that make it possible for you to perform basic bodily functions. To visualize a molecule of protein‚ close your eyes and see a very long chain‚ rather like a chain of sausage links. The links in the
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Produced by cell clusters in the pancreas called the Islets of Langerhans‚ insulin is a hormone that regulates glucose concentration in the blood. It is a protein synthesised and stored by beta cells‚ which secrete it in surges responding to changes in glucose levels. (Hardin‚ Bertoni and Kleinsmith‚ 2012) Fig 1. The Pancreas and Insulin |Source: University of Maryland (2011) | | |
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Protein powder is bad because it contained a lot of additive‚ sugar and too much protein. Although natural protein provide immune system defense for the body and also contain antioxidant components‚ however‚ that does not mean that protein shake or protein powder has the same function as the natural protein. As time goes by‚ protein powder has become essential for muscle builder to consume. People drink protein shakes or take pills while they are working out or after performing intense exercise.
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The first half of module seven discussed protein digestion‚ absorption‚ and metabolism; while the second half focused on pathological stress and kidney disease. Protein digestion occurs in the stomach and small intestine. When a protein reaches the stomach it is denatured by hydrochloric acid. Once the protein is digested pepsin breaks apart the denatured protein into peptides. Peptides move into the small intestine where they encounter an enzyme that digest the peptides into di- or tripeptides‚
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(McMorris‚ 2007) (Agriculture‚ 2007) (Chung SY1‚ 2004) (Agriculture‚ 2007) (McMorris‚ 2007) In less than ten years‚ nut allergies in children have risen by three times to what it used to be in United States. These are the leading causes of dangerous allergies are causing harmful anaphylactic reactions that can lead to death. In 2008‚ a research team found that 1.4% of children had a peanut allergy; more than three times the 0.4% rate back in 1997.The research carried out in the year 2002 in the
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