Homeostasis A state of balance in the body Whoa Homeostasis “the tendency of a system‚ esp. the physiological system of higher animals‚ to maintain internal stability‚ owing to the coordinated response of its parts to any situation or stimulus tending to disturb its normal condition or function” - Dictionary.com Unabridged (v 1.1) “The ability or tendency of an organism or a cell to maintain internal equilibrium by adjusting its physiological processes.” - American Heritage Stedman’s Medical
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Carbohydrate loading is a high-carb eating plan made to maximize energy levels and performance. It’s a process designed to saturate muscle cells with glycogen allowing athletes to perform longer before fatiguing. Carbohydrate loading has its positives and negative outcomes. The pros maximizing energy levels and performance in different scenarios are: 1) for women‚ carb loading is more effective during the luteal phase rather than the follicular phase of the menstrual cycle. It’s more effective
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season. Explain your choice. (1 mark) (iv) If a small amount of invertase is added to osmometer X‚ what will happen to the rate of movement of the dye? Explain your answer. (4 marks) (b) In terms of water relations‚ explain why animal cells store glycogen instead of simple sugars. (5 marks) (c) Round seeds and wrinkled seeds are two phenotypes of garden pea. The wrinkled phenotype is attributed to the absence of a starch-forming enzyme in the seeds. In terms of water relations‚ explain why the lack
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forms of polysaccharide is best for each function listed below? 1. strength of structure- glycogen(animals)‚starch(plants)‚chitin(exoskeletons) 2. storage and sugar release-cellulose‚ c. How are starch and glycogen similar? d. How are starch and glycogen different? e. Where do plants store starch in their cells?-plastids f. Where do Humans and most vertebrate animals store glycogen?-liver and muscle cells g. How do alpha and beta glucose differ? Why is this significant
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Increasing the overall performance and endurance of athletes through is the primary aim of much of the research done on training and becoming more competitive in sports. The choosing of athlete’s food choices‚ essential carbohydrates needed for athletes‚ and the effects of consuming carbohydrates before and during competition is very important in helping with the enhancing of an athlete’s endurance and his or her exercise performance. It is critical for athletes to ingest a significant amount of
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Chapter 10 Digestion and Nutrition Multiple Choice Questions 1. Plankton is a. Any organic debris in the ocean B. Plant and animal microorganisms drifting in the ocean c. A group of filter-feeding microorganisms d. Oceanic bacteria e. Seaweed 2. Examples of a suspension feeder and a deposit feeder would be‚ respectively‚ a. Clams and fish B. Polychaete annelid and earthworms c. Earthworms and rotifers d. Basking sharks and rotifers e. Earthworms and clams 3. The evolution
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Its effect is opposite that of insulin‚ which lowers blood glucose levels.[1] The pancreas releases glucagon when blood sugar (glucose) levels fall too low. Glucagon causes the liver to convert stored glycogen into glucose‚ which is released into the bloodstream. Glucagon raises blood glucose levels. High blood glucose levels stimulate the release of insulin. Insulin allows glucose to be taken up and used by insulin-dependent tissues. Thus‚ glucagon and
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of performance improvements following CHO ingestion can therefore be explained by the maintenance of blood glucose levels‚ in addition to increased CHO oxidation rates (Jeukendrup‚ 2004) and the sparing of muscle glycogen which in turn optimizes glycogen stores and delays muscle glycogen depletion (Coyle et al.‚
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intestinal villi). In the liver‚ galactose and fructose are converted to glucose or further metabolized forming a glycogen and fat. Glucose will go into part of the body where it is most needed as source of energy or to be made into glycogen which can converted to glucose or stored as fat. Hormone insulin help glucose to facilitated into body cells‚ where it is used for energy or stored as glycogen. If carbohydrates are consumed in great excess and overall kcalorie needs are
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stimulus D) recruiting small and medium muscle fibers C) Excitation-contraction coupling requires which of the following substances? A) Ca2+ and ATP B) Ca2+ only C) ATP only D) ATP and glucose A) Myoglobin ________. A) breaks down glycogen B) is a protein involved in the direct phosphorylation of ADP C) stores oxygen in muscle cells D) produces the end plate potential C) What structure in skeletal muscle cells functions in calcium storage? A) sarcoplasmic reticulum B) mitochondria
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