Which of the following is associated with the H+ proton?    a. Acts as a buffer against changes to muscle pH   b. Accumulation impairs calcium handling by the sarcoplasmic reticulum (SR)   c. Necessary molecule for the re-synthesis of ATP within the mitochondria   d. All of the above   e. Both B and C are correct

Q: The following is based on the Seebeck effect: Select one: a. RTDs b. IR thermometers c. Thermistors…

A: Clinical thermometer It is an instrument that is used to measure body temperature and contains…

Q: The molecule Q moves through the non-polar portion of the inner membrane of mitochondria.  Based…

A: They have their own DNA which is similar to bacterial DNA. They have ribosomes, enzymes and…

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: 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: Cytosolic concentration of calcium in cells is typically because calcium is -

A: Cytosolic concentration means the concentration of calcium inside the cytosol. The cytosol is the…

Q: Krebs cycle

A: answer is option e. In the presence of high NADH in muscle cell glucose entered in a metabolic…

Q: ATP powers the following cellular work, except a. Active transport

A: Ans- b.  Diffusion

Q: Fast-twitch muscle fibers have fewer mitochondria and less myoglobin to store oxygen than…

A: Aerobic respiration is the cellular respiration which occurs in the presence of the oxygen  where as…

Q: The large muscle protein that essentially "anchors" the thin-filaments to the cell membrane and…

A: The myofibrils are built from three kinds of proteins : Contractile proteins : They generate force…

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: When hydrogen ions are pumped across the inner membrane into the intermembrane space, this results…

A: Answer: INTERMEMBRANE SPACE : It is the space between the inner membrane and the outer membrane of…

Q: Creatine Kinase: a. Is the enzyme that can catalyze the reaction in which a phosphate group from…

A: Creatine kinase is an enzyme found in the heart, brain, skeletal muscle, and other tissues. When…

Q: glucose was no longer available, electron transport activity chain would:   a. decrease   b.…

A: The electron transport chain is a series of complexes that transfer electrons from electron donors…

Q: An athlete participates in aerobic exercise three times a week. One of the changes is an increased…

A: During aerobic exercise, the rate of breathing is faster and deeper than when the heart rate is at…

Q: Which of the following is associated with the process of ATP re-synthesis during exercise?   a.…

A: During exercise, there occurs the utilization of large amount of energy and absence of oxygen. Under…

Q: Which of the following is NOT true about glycolytic fast-twitch cells? A. They are only found in…

A: Option A is not true

Q: The function of ATP during muscle contraction is toa. cause an allosteric change in myosin so it…

A: ATP(adenosine triphosphate) causes an allosteric change on myosin so it detaches from actin and…

Q: Why does anaerobic respiration occur during vigorious exercise? a. during anaerobic respiration,…

A: Anaerobic cellular respiration, where organisms convert energy for their use in the absence of…

Q: high levels of Pi and no other metabolites, what would you observe

A: Muscle fatigue is a common complaint in clinical practice in humans. Muscle fatigue is known as an…

Q: When a muscle becomes anaerobic during strenuous exercise, why is itnecessary to convert pyruvate to…

A: A tissue is a group of cells that are organized to perform similar functions. there are basically…

Q: Which of the following thin filament structures directly interacts with the myosin heads to form a…

A: The mechanism of contraction of skeletal muscle was best explained through - "sliding filament…

Q: At low intracellular Ca2+ concentration, _________________ the active sites on the thin actin…

A: Muscle system is a type of body system which in which muscle undergo regular contraction and…

Q: Which of the following is true of the FoF1 ATPase under normal cellular conditions? Select all that…

A: Introduction :  FoF1 complex present in inner mitochondrial membrane and it can create ATP.  FoF1…

Q: Which of the following on the transport processes across the inner mitochondria membrane is FALSE?…

A: The inner membrane of mitochondria is the site of electron transport chain. Between inner and the…

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

A: Calcium ions and actin binding proteins play an important role in muscle contraction and relaxation.…

Q: true about slow motor units?

A: The true about slow motor units is they have a high number of mitochondria.

Q: Define the following terms: a. ATP synthase b. submitochondrial particle c. α,β-hexamer d. torque e.…

A: The electron transport chain is the cluster of proteins that transfer electrons through a membrane…

Q: When ADP and Pi are bound to myosin in the cross-bridge cycle... (MULTIPLE SELECT) A. There is no…

A: The cross-bridge cycle of muscle contraction is the process in which the actin filament and myosin…

Q: Which of the following statements about glycolytic fibers is true?

A: There are various types of muscle fibers. Some may be slow oxidative fibers, fast oxidative fibers,…

Q: During high intensity, short-duration exercise (weight lifting, for example), fatigue is believed to…

A: Muscle tension is defined as an important characteristic by which a muscle can develop tension and…

Q: What would most likely promote increased rates of glycolysis? Select one: a. a higher concentration…

A: Glycolysis is the breakdown of glucose molecule to produce energy and it occurs in cytoplasm of the…

Q: Which of the following is incorrect about the ATP synthase? O a. The Fo and F₁ components are…

A: ATP synthase or FoF1ATPase is an ubiquitous enzyme that uses the transmembrane electrochemical…

Q: The cell senses ATP is not being produced. What immediate effect will this have on the rate of…

A: INTRODUCTION ATP Adenosine triphosphate : source of energy.

Q: Where will the energy for active transport be derived from? A. Hydrolysis of ATP B. Co-transport of…

A: Active transport is the movement of ions and molecules from a region of low concentration to a…

Q: One of the disadvantage of negative feedback loop is lag caused because it can only be exerted after…

A: *Negative feedback systems have a disadvantage,that is they CAUSE A LAG OR LATENT PHASE  because…

Q: Which of the following statements summarizes glycolysis? O c. Consume 4 ATP and produces 2 ATP, 2…

A: Cell respiration is the oxidation of nutrients to retrieve the energy stored in them.

Q: An uncoupler ___________ Select one: a. decreases ATP levels by destroying the proton gradient in…

A: a.  decreases ATP levels by destroying the proton gradient in mitochondria  by dissociating the…

Q: Match the following terms with the correct numbers Lack sarcomeres, are involuntaryA. Slow oxidative…

A: The muscle fibers' primary function is to control the body's physical activity, and it contains a…

Q: Which of the two set ups shall generate higher amount of energy in terms of net ATP generated? Set…

A: Oxidation of fats Oxidation of fats is a process by which the fats are hydrolysed into small…

Q: Production of ATP can occur when creatine kinase takes a phosphate from _______________ and…

A: Creatine is a substance, which is found naturally in muscle cells. It helps the muscles to produce…

Q: which of the following cell types contain ATP- dependent K+ channels and voltage-gated Ca++ channels…

A: Voltage-gated calcium channels, otherwise called voltage-dependent calcium channels, are a gathering…

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,…

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.