An athlete participates in aerobic exercise three times a week. One of the changes is an increased ability to deliver oxygen to her skeletal muscles. Over time she notices that she can continue the exercise with greater intensity and duration. The reason for this change is that there is a(n) a. greater response from phosphate transfer. b. greater production of ATP from glycolysis and less from aerobic cellular respiration. c. greater production of ATP from aerobic cellular respiration. d. increased production of lactate.

Q: Under what conditions will lactic acid accumulate in skeletal muscle? A. when citric acid enzymes…

A: Lactic acid is the end product of anaerobic Glycolysis where Glucose is oxidised to lactic acid.

Q: Draw a figure illustrating the relationship between ATP and creatine phosphate, and explainthe…

A: Unlike aerobic and anaerobic metabolic pathways, there are still many other pathways that have…

Q: You would expect decreased production of ATP in all of the following individuals except a. an…

A: Adenosine triphosphate (ATP) is an energy carrying molecule found in the cells of all living things.…

Q: Which of the following statements best describes the sliding filament mechanism of muscle…

A: Actin- It is the main component of thin filament in muscle fibre, cytoskletal protein. Myosin-motor…

Q: Which of the following statements about the Ca2+ release channels in the sarcoplasmic reticulum is…

A: The right answer is option b) They are one-tenth the size of the voltage-gated Ca 2+channels. The…

Q: Phosphate transfer is used for A. immediate ATP needs and is dependent on oxygen. B. immediate ATP…

A: ATP hydrolysis is one of the most important reactions of the cell and has led some to the concept of…

Q: What is the fate of hydrogen atoms removed from glucose during glycolysis when oxygen is present in…

A: Carbohydrates: It is the energy source of the body represented by the formula (CH2O)n, where n is…

Q: Through which ATP-generating mechanism can long-lasting muscle contractions be sustained? a.…

A: Introduction :- Muscle contractions are defined by changes in the length of the muscle during…

Q: The binding of calciun to troponin will directly cause A. the hydrolysis of ATP B. the binding of…

A: Muscle contraction and relaxation is a very important process for the movement of the muscles, with…

Q: Under what conditions will lactic acid accumulate in skeletal muscle? Select one: A. When NADH is…

A: A reduction in muscle force generated over time or as a result of pathological conditions is…

Q: Suppose a person had an unusual mutation in the troponin protein of his skeletal muscles, such that…

A: The muscular system is a system of muscles where muscles are connected to bones and also to envelope…

Q: The release of which of the following minerals from muscle cell storage sites stimulates muscle…

A: Sarcoma muscles store calcium in sarcoplasmic reticulum. It gets released when a muscle cell or…

Q: Which mechanism of ATP production requires mitochondria and is able to use fatty acids and lactic…

A: ATP is produced by either substrate-level phosphorylation or oxidative phosphorylation. In substrate…

Q: Muscular atrophy occurs when: A. A patient lacks the coordination needed to walk normally. B. Muscle…

A: Muscular atrophy refers to the loss of skeletal muscle. The atrophied muscle normally smaller and…

Q: In 2013, Zach Bitter set a new record for running a 100 mile Ultra-Marathon in less than 12 hours.…

A: The muscle fiber is an individual muscle cell that consists of hundreds or thousands of myofibrils.…

Q: In muscle cells, magnesium ions compete with calcium ions for binding sites on troponin molecules.…

A: Calcium triggers contraction by reaction with regulatory proteins that in the absence of calcium…

Q: Which of the following is NOT a stock form of the key molecules for energy generation in muscle? A.…

A: Adenosine triphosphate (ATP) is used to generate energy in muscles. A significant amount of ATP is…

Q: Which of the following is NOT a product of aerobic respiration? A. carbon dioxide O B. ATP energy C.…

A: The metabolic reaction by which respiratory substrates are utilized to form energy molecules is…

Q: The human body has mainly two types of muscle fibres: slow-twitch and fast-twitch.  The { slow or…

A: Individual muscle fibres make up skeletal muscles. Not all muscle fibres are the same, much like…

Q: The control of aerobic respiration by ADP is referred to as_______________________.

A: Introduction- Aerobic respiration is a cellular process in which cellular energy is produced in the…

Q: Which of the following are the final by-products of glucose oxidation during aerobic cellular…

A: Cellular respiration is the process by which cells convert sugars into energy. The energy releases…

Q: Which of the following is true concerning glycolysis? A. It is an aerobic process. B. A net of 2…

A: Glycolysis is the process by which one molecule of glucose is converted into two molecules to…

Q: Discuss the importance of oxygen in this process of aerobic respiration.

A: Aerobic Respiration is the process of cellular respiration that occurs in the presence of oxygen gas…

Q: Anaerobic respiration in muscle tissue results in the formation of Select one: a. pyruvic acid b.…

A: ANSWER;- c) Lactic acid Explain;- Anaerobic respiration alludes to the kind of respiration that…

Q: Creatine phosphate in muscle cells   a is utilized during the excess post-exercise oxygen…

A: Creatine phosphate is the high-energy, phosphate-storage molecule of muscle. They are mostly found…

Q: The purpose of transverse tubules is to Select one: a. ensure a supply of glycogen throughout the…

A: Transverse tubules are basically the structures present in the muscles,they are the invaginations or…

Q: Describe ATP formation in the last stage of aerobic respiration

A: Energy is needed to hold out life processes within each cell of all living things. Breaking down and…

Q: One of the primary reasons that one individual is faster in a 50-meter sprint than another is a. a…

A: The speed of a person is dependent on the type of muscle fiber that is present in an individual. The…

Q: Explain why low carbohydrate diets cause a loss of fat? You must describe how aerobic cellular…

A: A low carbohydrate diet includes foods that are rich in proteins and fats and limits the…

Q: Anaerobic glycolysis O2 and producesenergy (ATP) for the cell than aerobic respiration.a. does not…

A: Glycolysis is the metabolic process by which glucose is oxidized to form energy that is required by…

Q: Which is common between aerobic respiration and anaerobic respiration ? (A) Similar substrate (B)…

A: Introduction - Respiration can be divided into two categories: Respiration that occurs in the…

Q: Based on what you know about glycolysis and aerobic cellular respiration, explain the advantage in…

A: Glycolysis is the process of energy is produced from the glucose molecules in the body. In the first…

Q: The concentration of lactate in blood rises sharply during a sprint and declines slowly for about an…

A: Introduction: When a person sprints, his/her muscles contract vigorously requiring more oxygen than…

Q: Mark the following statements as true or false. If a statement is false, correct it to make a true…

A: Every cell requires energy (ATP) to perform many cellular functions like active transportation,…

Q: Which of the following is a form of activity .9 characterized by movement and energy expenditure…

A: An activity which comprises with action as well as movement of the body will result in expenditure…

Q: In some fitness exercises you will build muscle mass but do not train the muscle to be effective.…

A: Muscle buildup is important for the development of strength and agility. Muscle buildup is basically…

Q: The control of aerobic respiration by _____________ is called respiratory control. a. ATP b. ADP c.…

A: In aerobic respiration, glucose is converted to pyruvate by glycolysis. The pyruvate is then…

Q: The control of aerobic respiration by ADP is referred to as_____________.

A: ADP (adenosine diphosphate) is important at the cellular level as it helps in the flow of energy of…

Q: Which of the following are TRUE, regarding a period of sustained moderate-to-high intensity  aerobic…

A: This is a multiple choice question.

Q: In contrast to resting cells, muscle tissue in an active metabolic state will have ___________…

A: Muscles are referred to as the source of contact addresses of the body that are principally…

Q: Describe the changes in barometric pressure, PO2, and air density with increasing altitude. Include…

A: Atmospheric pressure and altitude or height is correlated. The relationship is reverse.  Atmospheric…

Q: The bar-tailed godwit is a type of shorebird that makes an annual migration from Alaska to New…

A: Living cells require an input of free energy. Energy is required for the maintenance of highly…

Q: a. List two compounds that can be produced from pyruvate in skeletal muscle

A: Respiration is a catabolic, biochemical process, that involves the stepwise, complete or incomplete…

Q: Indicate whether each of the following processes would be expected to involve the conversion of ATP…

A: Normally cardiac output is the summation of the heart beat rate per minute and the stroke volume…

Q: During low intensity, long-duration exercise (long-distance running, for example), fatigue is NOT…

A: There are two types of exercises: low intensity-high duration and high-intensity short duration.…

Q: oxidize glucose to pyruvate and then release lactic acid into the bloodstream

A: Glycolysis is one of the most important metabolic pathways taking place inside the cell. It occurs…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.