If the gene for myoglobin is "knocked out" in mice (so that the mice can no longer produce myoglobin), one would expect the mice to: have larger lungs. respire extremely rapidly. have dark red muscle tissue. O appear normal, with lighter colored muscle tissue. Have bigger ears.
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- Since humans began playing sports there have probably been people willing to cheat to gain an advantage. One form of cheating utilized by endurance athletes is called blood doping, which relates to our study of cellular respiration. “Blood doping is the misuse of certain techniques and/or substances to increase one’s red blood cell mass, which allows the body to transport more oxygen to muscles and therefore increase stamina and performance.” Definition from https://www.wada-ama.org/en/questions-answers/blood-doping From PED, to shaving points, bribery to drugging opponents (https://www.irishtimes.com/sport/maradona-backs-branco-s-claim-of-drug-laced-bottle-at-italia-90-1.4091470), there seems to be countless ways for athletes for gain an advantage. My question for the class is… What is the worst ethical offense that an athlete can commit? Do you know of any examples where this may have happened?Turkeys in captivity fed on a grain diet (type of grain unspecified) begin to show abnormal walking and postural behaviors such as staggering, and paralysis of neck and other appendages. You humanely euthanize the captive flock and conduct necropsies. Individuals show presence of irregularly shaped white patches in both skeletal and cardiac muscle. Based on this information, what modification to the diet would you suggest to improve the health of future captive turkeys? Select one: a. Increase tocopherol b. Increase iron c. Increase calcium d. Add Acetyl-CoA e. Increase carbohydratesWhich of the following statements is false? Slow fibers have a small network of capillaries. Slow fibers contain the myoglobin. Slow fibers contain a large number of mitochondria. Slow fibers contract for extended periods.
- The change related to muscle mobility are the most obvious in older adult. There can be measurable differences in muscle strength, endurance, range of motion, coordination, elasticity, and flexibility of connective tissue. Regular exercise is necessary to prevent a decrease in muscle strength. Exercise helps to strengthen muscles and keeps joints, tendons, and ligaments more flexible, allowing for a more active lifestyle. Describe some activities you could recommend to an elderly patient to stay active to help them maintain muscle mass.Imagine you are an oxygen molecule. Your job is to get inside the body and deliver oxygen to a working muscle. Create a word flowchart to identify all the structures you will encounter during your passage from the outside air to the inside of a muscle cell. Include a short description of how you will exchange places with carbon dioxide when you arrive at the cell.One consequence of oxygen deprivation is decreased production of ATP. Would you expect this to have a greater effect on smooth or cardiac muscle tissue? Explain
- The changes related to muscle mobility are the most obvious in older adult. There can be measurable differences in muscle strength, endurance, range of motion, coordination, elasticity, and flexibility of connective tissue. Regular exercise is necessary to prevent a decrease in muscle strength. Exercise helps to strengthen muscles and keeps joints, tendons, and ligaments more flexible, allowing for a more active lifestyle. Please research and describe some activities you could recommend to an elderly patient to stay active to help them maintain muscle massYou are at the gym and doing strength training. You feel in good shape and should try to break personal records in squats. You place the bar on your back and begin to take in, that is, your motor neurons begin to send action potentials through all your motor units to the thigh muscles. What is the contraction called when you a) bend down and b) are in good shape and can generate more force than the bar weighs c) stay standing in one and the same position without being able to push yourself up in a standing position?Muscle with a reduced blood supply and low numbers of mitochondria is likely Fast, with strong contractions that is easily fatigued. Slow, with weak contractions is easily fatigued. Fast, with strong contractions that is not easily fatigued Slow, with strong contractions that is not easily fatigued. Fast, with weak contractions that is easily fatigued.
- Fill in the appropriate type(s) of muscle: Contracts rhythmically and spontaneously:_______ ;is controlled voluntarily:________ ; contains orderly arrangements of fibrous proteins, giving a striped appearance:_________ ; is under involuntary control:________; is found in the walls of the digestive tract:_______; moves the skeleton:________ .Tetanus is a disease caused by Clostridium tetani characterized by muscle spasms. Just like the toxin produced by Clostridium botulinum, this toxin produced by C. tetani interferes with muscle contractions. Where botulina toxin causes paralysis, C. tetani toxin causes muscle spasms and painful contractions lasting minutes at a time. Additional symptoms include stiffness and rigidity of muscles. Using your knowledge of how muscles contract explain what steps within a muscle contraction are being interfered with to cause these symptoms?Read over the following article from the New York Times It describes a study in which researchers look at the changes in different types of molecules during exercise. For this question, complete the following: Briefly summarize the article Provide information about the study as to what they were looking at and any results or findings. Discuss your interest in a exercise system or response described in the article and outline how you would find more information on this topic.