Start by defining RER and explain how and why the resting value is established (think back to bioenergetics). Next, explain how and WHY (again, this requires an understanding of bioenergetics) RER changes as exercise intensity is increased (think VT and RCP). Hints: consider the points where the production of a gas increases drastically and why this occurs. Furthermore, consider that VT is often used to approximate AT. Also keep in mind the endogenous buffering systems.

The ratio of the amount of carbon dioxide being made concerning the oxygen consumed while the metabolism of food occurs is referred to as the respiratory quotient. The food metabolism sources include many amino acids, glucose and other nutrients such as vitamins and proteins.RER refers to as respiratory exchange ratio. It is the measurement of the ratio between carbon dioxide production and oxygen consumption. This ratio can be measured by observing the respiratory quotient and fuel used for metabolism so that energy can be produced. At the time of rest, the respiratory exchange ratio lies between 0.7 to 1.0. The respiratory exchange ratio is used to calculate the respiratory quotient is accurate at the time of rest. It can vary from mild to moderate at an aerobic exercise without any lactate accumulation. To establish the resting value, so that blood acidification needs to be decreased, which is achieved by exiting more carbon dioxide from the body. At the time of intense exercise, the loss of accuracy occurs because of the bicarbonate buffer system as the body can function to compensate for the lactate accumulation and decrease the acid in the blood by exhaling more carbon dioxide from the respiratory system. Thus when exercise intensity increases and carbohydrate is used as a primary fuel, the respiratory exchange ratio increases and lies between 0.9 to 1.0. The respiratory quotient is a reference of tissue that how many substrates are being used.VT refers to as ventilatory threshold, and it increases when the exercise intensity increases. It captures how breathing rate increases and at which point it starts increasing, and as the respiratory exchange ratio increases, the exercise intensity increases the ventilatory threshold. RCP respiratory compensation point and this function in stimulation of the factors that causes ventilation when the respiratory exchange ratio increases.Hence, the respiratory exchange ratio is the ratio of carbon dioxide produced to the oxygen consumed. Resting value is established by exhaling carbon dioxide to prevent acidification. When the exercise intensity increases, an increase in the respiratory exchange ratio concerning the ventilatory threshold and respiratory compensation point occurs.

Answered: Start by defining RER and explain how…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Start by defining RER and explain how and why the resting value is established (think back to bioenergetics). Next, explain how and WHY (again, this requires an understanding of bioenergetics) RER changes as exercise intensity is increased (think VT and RCP). Hints: consider the points where the production of a gas increases drastically and why this occurs. Furthermore, consider that VT is often used to approximate AT. Also keep in mind the endogenous buffering systems.

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