The role of creatine phosphate in muscle cells is to: provide energy for muscles during extended physical activity (greater than 20 minutes) O split glucose in two accept electrons "recharge" spent ATP in the first several seconds of a muscle contraction shuttle H atoms to the ETC

At the gym, you expend 230 kcal riding the stationary bicycle for 1 h. Part A How many moles of ATP will this require? Express your answer using two significant figures. VE ΑΣΦ Atty ? Submit Provide Feedback Request Answer moles

Describe the components that make up ATP and how they are assembled and taken apart. Use the terms endergonic and exergonic in your description. Why is ATP so important? Edit View Insert Format Tools Table 12pt v Paragraph v в I T2 v S OT étv 8. MacBook Air DII 000 F9 F10 F7 F8 F6 F5 1. F3 F4 & %23 %$4 3 4 7

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Which of the following statements about glycolytic fibers is true?

a skeletal muscle cell has depleted its stores of ATP how will the altered transport properties of the NKA transporter affect cytosolic calcium concentrations (increase, decrease, no change) relative to normal? Why?

Acetylcholine (ACh) is the primary neurotransmitter responsible for muscle contraction. The binding of ACh to receptors on muscle cells activates a signal transduction pathway that causes the muscle to contract. Acetylcholinesterase, the digestive enzyme found on the membranes of muscle cells, is responsible for the breakdown of ACh over time, ending the activation of muscular contraction. Certain chemical compounds, such as sarin gas, act as high-affinity inhibitors of acetylcholinesterase. Which of the following describes the most likely effect that exposure to sarin would have on muscle cells? A B с D complete inhibition of muscle contraction slower transduction of the muscle contraction pathway decrease in the frequency of muscle contraction convulsions due to continuous muscle contraction

What causes the striated appearance of skeletal muscle? O a. presence of gap junctions O b. regular arrangement of highly organized thick and thin filaments presence of the mitochondria at regular intervals O d. regular arrangement of the T tubules running transversely through the muscle fibre

You are helping Eldon Tyrell create replicants to work in off-world colonies. You want to design muscle cells that can produce the most tension. These muscle cells will have an abundant amount of: Moments that will be lost in time, like tears in rain... Sarcolemma Mitochondria O Myofibril

What is the sole source of energy used by the body for muscle contraction? Where does the chemical importance lie in this molecule?  Explain your answer by reviewing the process of ATP hydrolysis.