Concept explainers
To determine: The different ways by which an athlete could boost oxygen-delivering capacity and whether all methods shall be considered as ‘cheating’ and be banned.
Introduction: The cardiorespiratory system in the body plays an important role in delivering oxygen to muscles. Red blood corpuscles present in the blood contains a protein containing pigment that is hemoglobin. The hemoglobin has the capacity to carry oxygen and carbon dioxide. The hemoglobin carries oxygen to tissues and cells for oxidative phosphorylation at the end of which ATP is produced. The ATP produced in muscles will aid the athletes to make better use of their muscles in the sport they are competing in.
To determine: The appropriate punishment for an athlete who is caught blood doping.
Introduction: The cardiorespiratory system in the body plays an important role in delivering oxygen to muscles. Red blood corpuscles present in the blood contains a protein containing pigment that is hemoglobin. The hemoglobin has the capacity to carry oxygen and carbon dioxide. The hemoglobin carries oxygen to tissues and cells for oxidative phosphorylation at the end of which ATP is produced. The ATP produced in muscles will aid the athletes to make better use of their muscles in the sport they are competing in.
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Campbell Essential Biology with Physiology (6th Edition)
- 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.arrow_forwardProfessional cycling has had much difficulty with cheating. Athletes and team doctors have discovered a variety of unnatural and illegal ways to improve sport performance. Cycling is highly aerobic which means oxygen is required to produce energy. If you have more red blood cells, you can carry more oxygen to working muscles. There are two methods of illegal blood doping to increase the number of red blood cells. 1. A few weeks before competition you would have some blood removed into a into a bag like when people give blood. You freeze the blood. Your body will pretty quickly replace the blood to normal levels. Before the race, you thaw and re infuse the blood. Now you (the athlete) have more than normal amounts of red blood cells. You can now carry more oxygen to yoru working muscles and have an unfair advantage. 2. You can also inject a hormone called erythropoetin (EPO) to stimulate the bone marrow to make more red blood cells. What two physiological systems are involved in method…arrow_forwardHow would you use the Tones Equation of Health Promotion and Tannahill Model of Health promotion to promote use of Helmets among motocycle riders and passagersarrow_forward
- 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. appear normal, with lighter colored muscle tissue. Have bigger ears.arrow_forwardAcclimatization is adaptations in a lab-controlled setting. True False Exercising and training at altitude provides benefits for performance at sea-level. True Falsearrow_forwardA person who lives close to sea level and usually goes jogging in the morning. When that person runs at a place like Denver with high elevation she notices she isn't able to run as fast up in Denver as she usually does at home. She knows it is colder and there is less oxygen at high elevation than there is at his home. Why she feel like she didn't have the energy to keep up with her usual pace. a. her body wasnt able to begin glycolysis due to lack of oxygen b. her body was producing less ATP due to lack of oxygen c. her body wasnt getting enough external heat inputarrow_forward
- We have looked at exercise from a couple of perspectives now. Of the sets of physiological parameters below, which is a combination of one parameter that increases, one that decreases and one that doesn't change with vigorous exercise in that order? Tidal volume, Inspiratory reserve volume, stroke volume Forced vital capacity, heart rate, cardiac output Hematocrit, forced vital capacity, respiratory rate Stroke volume, expiratory reserve volume, forced vital capacity Heart rate, tidal volume, hematocritarrow_forwardAn example of a positive feedback mechanism is blood clotting in which certain clotting factors active other factors until a plug forms to stop bleeding. Is this process involved in homeostasis? no, positive feedback mechanisms cannot regulate homeostasis no, it is not a negative feedback mechanism no, it does not fit into a classic "push-pull" action no, because it does not result in restoring blood volume O yes, because it is part of a bigger negative feedback mechanism to maintain optimal levels of blood volume. E O O O O Carrow_forwardSome athletes have drink beet juice (yes, juice from beets) to improve their endurance performance. Beet juice is known to contain high levels of a molecule called nitric oxide (NO) which may improve blood flow from lungs to working muscles by causing the dilation (widening) of blood vessels. Select the pair below that includes the most related subdiscipline and physiological system. O lungs / muscles O motor behavior / endocrine O sports nutrition / cardiovascular O biomechanics / cardiovascular O kinesiology/thermoregulationarrow_forward
- How does investigating the homeostasis changes during exercise illustrate homeostatic feedback mechanisms in three ways? Please put emphasis on homeostasis changes during exercisearrow_forwardYou are snorkeling on vacation in Tahiti. After an hour of passively floating while viewing fish, you retire to your lounge chair on the beach. As you sit and relax , your spouse asks you why a person breathes hard while snorkeling even though just floating on the water and not moving. What would be the best Anatomy Physiology explanation ? Their is a patient presents with symptoms of AIDS. As you prepare to take the patient's temperature, the student you are mentoring asks you how an AIDS patient who is immunodeficient could still present with a fever. What would be your explanation to the student?arrow_forwardWhich type of aerobic exercise increases breathing rate the most? Create a hypothesis and state some safety precautionsarrow_forward
- Lifetime Physical Fitness & WellnessHealth & NutritionISBN:9781337677509Author:HOEGERPublisher:CengageHuman Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning