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ATP is used to create energy for the muscles by one phosphate molecule breaking off and into the muscles for energy. This then leaves ADP (Adenosine di phosphate) which is just 2 phosphate molecules. The creatine phosphate (PCr) works with the ADP to recreate ATP (3 phosphate molecules). If there is a lack of creatine phosphate in the body we will not be able to engage in anaerobic activities or at least not very effectively.
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∙ 13y ago
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∙ 12y agoATP is bound in the myosin head as ADP and a phosphate group. When Ca 2+ binds to the thin filament and twists it open to the receptor the myosin head reaches for it and binds to the receptor site and strokes. The the ADP and phosphate group fall out and an ATP binds and the myosin head relaxes and the ATP detaches to the ADP phosphate group configuration in preparation for reaching and preforming another stroke.
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∙ 10y agoDuring muscle contractions the ATP is converted into ADP and at times into AMP. This is high energy bond, which gives you energy required for muscle contractions. Some energy is not trapped and get converted into heat.
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∙ 11y agoa. energizing the power stroke of the myosin cross bridge
b. disconnecting the myosin head from actin
c. actively transporting calcium back into the SR
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∙ 10y agoATP (Adenosine triphosphate) is the most immediate source of chemical energy for all the cells in your body.
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∙ 10y agoContraction of muscles need a lot of energy. ATP (Adenosine Tri Phosphate) splits into ADP (Adenosine Di Phosphate) and phosphate to provide energy for the contraction of muscles.
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∙ 9y agowhat is the importance of coupled reactions
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∙ 11y agoCreatine phosphate
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∙ 13y agoMyofilament movement
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The strongest muscle contractions are normally achieved by what?
The strongest muscle contractions are normally achieved by increasing the stimulation up to the maximal stimulus. There are various classifications of contractions, including eccentric and concentric.
What muscle actions would be classified as isotonic contractions?
sup
What is the muscle that normally exhibits arrhythmic contractions?
Penis Musle
How do diurnal variation affects body temperature?
during sleep, body metabolism slows down, as do muscle contractions. The body'stemperature is lowest in the morning before metabolism and muscle contractions begin increasing.
What are the sources of ATP for muscle fibers?
There are three sources that supply ATP for muscle metabolism - 1. Creatinine phosphate 2. Glycogen 3. Cellular respiration in the mitochondria of fibers Creatinine phosphate is the main source of ATP for muscle metabolism.
If muscle contractions use ATP at or below the maximum rate of ATP generation by mitochondria the muscle fiber will what?
produce lactic acid
What happens when a chemical involved in muscle contractions called adenosine triphosphate ATP leaves the body?
Rigor mortis
When does muscle fatigue occur?
Muscle Fatique occurs when low o2 conditions deplete Atp and cp stores acaerobic respiration creates lactic acid. drops in ph and o2 debt lead to failure of the muscle to maintaain contractions
Explain Chemical changes during muscular contractions?
The chemical changes during muscular contractions include conversion of ATP into ADP, break-down of phosphocreatine and muscle glycogen, formation of Fructose diphosphate and lactic acid and resynthesis of creatine phosphate.
Does muscle relaxation does not require ATP?
Both muscle relaxation and muscle contraction require ATP.
What process involves muscle contractions that move food through the esophagus molecules?
Different types of muscle contractions
What is an Isotonic Contractions?
Isotonic contractions. This happens when the muscle shortens as it contracts
What type of muscle is rich in ATP?
Muscle fibers are rich in ATP. All muscle fiber types are rich in ATP (having many mitochondria).
Does isotonic muscle contractions involve shortening of muscle?
Yes
The strongest muscle contractions are normally achieved by what?
The strongest muscle contractions are normally achieved by increasing the stimulation up to the maximal stimulus. There are various classifications of contractions, including eccentric and concentric.
What are the energy sources for muscle contraction to occur?
Energy is supplied to muscles for contraction by means of adenosine triphosphate being stored in muscle fibers. These are stored from creatine phosphate, enough to power muscle contractions for a few seconds.
What is responsible for muscle contractions?
most often uncontrollable contractions are cause by one or several of the following: CNS stimulants, reflex triggers, anxiety, stress, many pharmaceuticals (SSRI's for example), & overworking muscles without prior stretching/loosening
