termine the relative wordfish section by estimating the surface area of each typ
ID: 3514683 • Letter: T
Question
termine the relative wordfish section by estimating the surface area of each type (red, white). amounts (ie, percentage, %) of the two different muscle types in the at do these estimates tell you about the relative contribution of aerobic and anaerobic metabolism to total muscle power output? B. Analyzing Muscle Fiber Types: Various histochemical methods are employed to distinguish fiber types and today you will examine an image of one such staining procedure uses an enzyme reaction in the mitochondria (succinate dehydrogenase, SDH) and a colored compound, which turns purple as a result of this reaction. This assay can distinguish oxidative fibers from less oxidative fibers (essentially red from white). Basically, the more mi in a muscle fiber, the darker it will appear in the stained section. Predict which fiber type will have the greater abundance of mitochondria, FG or SO? meth od, and determi ine the fiber type composition of the muscle tissue. The that are present photograph of histochemical analysis of muscle fiber types ruler calculator MATERIALS 74Explanation / Answer
#3.ans. The slow twitch muscle fibers (SO) have higher concentrations of mitochondria and myoglobin than the fast twitch fibres(FG). Inspite of being smaller than the fast-twitch fibers, are surrounded by a greater network of capillaries . This enables the SO fibers for combating fatigue and sustain aerobic metabolism essential for prolonged exercise activities.
#4.ans. The swordfish has an equivalent distribution of FG and SO muscle fibers since it isa fast swimming fish and also has to travel long distances.
Other #4ans.
Athletic performance is determined by the cellular composition of the muscles under contraction. Muscle fibres are classified into three major categories based on their structural and metabolic characteristics.
Type1.The white, fast-twitch, glycolytic fibers (FG) have large diameter and are required for producing rapid energy in short bursts for powerful contractions. FG depends on anaerobic metabolism for ATP generation and they eventually become fatigued with the accumulation of lactic acid produced as a by-product of the process that interferes with muscle contraction.
Type 2.The Red, slow-twitch, oxidative fibers (SO) have smaller diameters than FG and they generate a greater yield of ATP by aerobic metabolism. No lactic acid is produced as by-product in the process. SO fibers contract is less rapidly and as a result of which, they are not easily fatigued.This is the reason they are suited for prolonged exercise.
Type 3. The fast, oxidative-glycolytic fibers (FOG), utilises both oxidative and glycolytic pathways for energy generation.These fibers are of intermediate size when compared to FG and SO fibers.
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