Fruit Fly Homeostasis

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The Fruit Fly needs to get its sleep so that its metabolism can be good. If the metabolism if too low and the weight of the fruit fly is too high then it won't be able to get around as easy as it would if it was smaller. Which makes the fruit fly slower causing it to go down the competition chain, harder to get food, harder to find mates, and even easier to get eaten by predators. In Drosophila, sleep has time periods in which the fruit fly is inactive and which seems to be frozen or stuck, with an increased arousal threshold. Fruit flies go back and forth between deeper and light sleep in which they are inactive, with deeper sleep as time progresses and the fruit remains inactive. Sleep could result from global changes in the brain during

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Sleep In Fruit Flies

There has been discussion over the years, of if the fruit fly, Drosophila, actually sleeps. They actually have many characteristics of sleep including, stages of sleep, how much sleep is required, and the rest-like stage of inactivity. There was an experiment that showed that the fruit flies sleep in numerous stage during the day and night. According to Alphen, Kirszenblat, Kottler, Swinderen, and Yap, the fruit flies take shorter periods of rest bouts during the day and longer ones at night, presumably…

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Research Paper On Fruit Flies

Article Name: “Diabetic Flies” Can Speed up Disease-Fighting Research At the University of Maryland researchers have found that Fruit Flies respond to insulin relatively similar to humans on the cellular level. They have used these flies in order to do experiments on how we can cure diabetes or at least know more about it. Although humans and fruit flies are not alike they do have a 60% similarity in DNA. For the fact that they do share a similar response to insulin, and they are also easy to breed…

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A Brief Summary Of The Argument Of Sleep

the amount of sleep is an example of homeostasis. Because the specific mechanism by which this happens is not very well known to researchers, researchers set out to determine the mechanism. Because the brain is the control center that helps control all of the body’s functions, researchers started by examining it. Human subjects cannot be used because of ethical reasons, instead researchers tested on an animal with a similar nervous system - the fruit fly. Researchers focused on the cells of…

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From The Origins Of Cells To Synthetic Cells

yeast Multicellular respond to growth factors, hormones… How signals are receieved and processed (transduced) Signal transduction: method of cell’s response, studied to understand cells and treat disease (cancer) on: Yeast, Nematode worms, Fruit flies, Rodent cell culture models/mouse genetics, Human cell culture models Ligands – first messenger/external signal/stimuli i.e. proteins, peptides, lipids, small molecules Receptors – specific cellular proteins (membrane spanning) ligand ‘switches’…

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Questions On Biology

Science Revision Pack Homeostasis- means keeping a constant internal environment. It is carried out around the whole body. Homeostasis reaches from every cell up to whole organs and systems. Why do we need it? If there was not a constant internal environment, our enzymes would not work properly. That would mean that nothing would operate correctly and we would die. What has to be controlled? All of our cells are bathed in a watery solution, which is formed by some of our blood plasma which…

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Essay on 2013 Winter Midterm 1 KEY

all cells of the immune system) using purified hematopoietic stem cells? a. Yes b. No 3. A body generates in the vicinity of 1011 white blood cells (WBCs) every day. This requires we eliminate about the same number of WBC’s each day to maintain homeostasis. How are these cells eliminated? a. Natural killer cells do the elimination b. WBC’s naturally undergo apoptosis c. WBC’s naturally undergo necrosis d. WBC’s return to the bone marrow for rest and then re-enter the blood vasculature at a later…

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Outline The Difficulties Of Defining The Terms Health And Disease

of proteins in the body (needed for proper functioning) and so healthy genes ensure the correct proteins are made.  Through production of proteins (especially enzymes), genes ensure the correct cell processes occur, maintaining metabolism and homeostasis. Mitosis:  Mitosis is the process that enables genetic material to be copied exactly, ensuring the genes are correct and able to maintain health in their own way  Mitosis is also the process that organisms use to grow, and maintain and repair…

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Biology 30 Essay

Biology 30 Unit 1: The nervous system plays a key role in homeostasis. It acts as a relay center between the external environment and the internal environment. The nervous system is a complex communication system which sends messages from one area of the body to another. The messengers are electrochemical messengers: hormones and nerve impulses. Nerve impulses are much faster than hormones. There are more than 100 billion nerves cells in the brain and each nerve cell can have up to 100,000 connections…

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Personal Statement: Pre-Medical Women's Society

Personal Statement By the age of twelve, my family and I had moved to four different countries and seven different cities. My parents wanted to find the perfect place to settle down and they sincerely valued the life-long experiences that were gained through traveling. Although I was born in Boston, I spent most of my childhood years in England so I personally consider London as the city that raised me. The melting pot atmosphere of London truly sparked my appreciation and interest in the variety…

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Essay about AP BIO RTC Ch 41 44

bind bone to bone, forming a joint capsule. In a "double-jointed" individual, the ligaments are unusually loose. The joint capsule is lined with a synovial membrane that produces a lubricating synovial fluid. 7. Skeletal muscle contraction assists homeostasis by helping maintain constant body temperature. Skeletal muscle contraction also causes ATP breakdown, releasing heat that is distributed about the body. If a muscle is given a rapid series of stimuli, it responds to the next stimulus before completely…

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