COVER PAGE SCHOOL: BON AIR SECONDARY SCHOOL OUR TOPIC: COMMUNICATION SATELITES‚ NETWORKS‚ EXTRANETS DATE: 08/10/12 CLASS: 3:3 SUBJECT: COMPUTER STUDIES TEACHER: P.GRANSAM GROUP MEMBERS: KYLE‚ ISAIAH‚ NICQUAN‚ HANNAH‚EMMANUEL COMMUNICATION SATELLITES A communication satellite is an artificial satellite sent to space for the purpose of telecommunications. Modern communications satellites use a variety of orbits including: geostationary‚ molniya orbits‚ elliptical orbits‚ and low (polar
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Activity 1: Determining Baseline Metabolic Rates. 1. Which rat had the fastest baseline metabolic rate? The normal rat had the fastest baseline metabolic rate. 2. Compare the baseline metabolic rates for the thyroidectomized rat and the normal rat and explain your results. The normal rat’s baseline metabolic rate was faster than that of the thyroidectomized rat’s baseline metabolic rate. 3. Compare the baseline metabolic rates for the hypophysectomized rat and the normal rat and explain your results
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How Hormones Effect the Endocrine System Introduction: The endocrine system primarily relies on the negative feedback mechanism. The endocrine system influences metabolic activities by sending out chemical messengers through the blood called hormones. Once released into the blood these hormones are transported throughout the body. The effects of these hormones are wide spread and vary from reproduction‚ growth and development‚ immunities‚ maintaining electrolyte levels‚ water and nutrient balance
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Activity 1 Which rat had the fastest baseline metabolic rate? Normal Rat Why did the metabolic rates differ? The hypophysectomized rat lacked thyroid-stimulating hormone. The thyroidectomized rat lacked thyroxine hormone. Activity 2 What was the effect of thyroxine on the normal rat’s metabolic rate? How does it compare to the normal rat’s baseline metabolic rate? Thyroxine caused the metabolic rate to increase; it was faster. Why was this effect seen? Because it stimulates heart rate‚
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Determining Baseline Metabolic Rates. 1. Which rat had the fastest baseline metabolic rate? -------------------------The normal rat 2. Compare the baseline metabolic rates for the thyroidectomized rat and the normal rat and explain your results. The thyroidectomized rat had a lower baseline metabolic rate beause the removal of its thyroid gland prevented it from producing any thyroxine. 3. Compare the baseline metabolic rates for the hypophysectomized rat and the normal rat and explain your
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Hormones and Metabolism Activity 1: Determining the Baseline Metabolic Rates 1. Which rat had the fastest baseline metabolic rate? Normal rate 2. Why did the metabolic rates differ? Because of the different organs that were removed from the two other rats that would produce certain hormones 3. If an animal has been thyroidectomized‚ what hormone(s) would be missing from its blood? thyroxine 4. As a result of the missing hormone(s)‚ what would the overall effect on the body and metabolism
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This hormone is thyroxine. Thyroxine production is controlled by thyroid stimulating hormone‚ which is released by the pituitary gland. TSH stimulates the thyroid gland to produce thyroxine. In this experiment‚ the effects of TSH and thyoxine on metabolic rate are investigated. Estrogen is a hormone produced by the ovaries that helps the uterus to develop. The removal of the ovaries eliminates the source of estrogen and the uterus cannot develop properly. In one of the following experiments‚
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Physiology | 1. | | Refer to Activity 1: Determining Baseline Metabolic Rates. How did the baseline metabolic rates of the three rats differ? Answer: | The metabolic rates for the thyroidectomized and hypophysectomized rats were lower than that of the normal rat. | | | 2. | | Why did the metabolic rates differ? Check all that apply: Answers: | The hypophysectomized rat lacked thyroid-stimulating hormone. The thyroidectomized rat lacked thyroxine hormone. | | | | 3. | | Refer
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include what you will be doing for each activity) Activity 1: Determining Baseline Metabolic Rates Data: (add your results here in numbers - Chart 1 is used in Activities 1-4) Chart 1 – Effects of Hormones on Metabolic Rate Rat Types Baseline: Normal Thyroidectomized Hypophysectomized Weight 249.9g 245.3g 244.4g ml O2‚ 1 min. 7.0ml 6.1ml 6.1ml ml O2/hr. 420ml 366ml 366ml Metabolic Rate 1680.72ml O2/kg/hr 1492.45ml/O2/kg/hr 1497.54ml/O2/kg/hr With thyroxine:
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S 1. To define the following terms: metabolism‚ hormone replacement therapy‚ type 1 diabetes‚ type 2 diabetes‚ and glucose standard curve. 2. To explain the role of thyroxine in maintaining an animal’s metabolic rate. 3. To explain the effects of thyroid-stimulating hormone on an animal’s metabolic rate. 4. To understand how estrogen affects bone density. 5. To explain how hormone replacement therapy works. 6. To explain how fasting plasma glucose is used to diagnose diabetes. 7. To understand how
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