Most of the time, however, energy consumption is composed of both fats and carbohydrates. The approximate respiratory quotient of a mixed diet is 0.8. Some of the other factors that may affect the respiratory quotient are energy balance, circulating insulin, and insulin sensitivity.
RESPIRATORY QUOTIENT (R.Q) Respiratory quotient is the ratio of the volume of carbon dioxide produced to the volume of oxygen consumed in respiration over a period of time. The respiratory quotient besides other factors, depends on the type of respiratory substrate (e.g., glucose) and the completeness of oxidation.
Within the biological range of temperature, the RQ falls with an increase in temperature.
The respiratory quotient (RQ) is calculated from the ratio:
- RQ = CO2 produced / O2 consumed
- RQ value corresponds to a caloric value for each liter (L) of CO2 produced. ...
- RQ as measured includes a contribution from the energy produced from protein.
The respiratory quotient (RQ) is the ratio of CO2 produced to O2 consumed while food is being metabolized:
- RQ = CO2 eliminated/O2 consumed ...
- Carbohydrates: The respiratory quotient for carbohydrate metabolism can be demonstrated by the chemical equation for oxidation of glucose:
Fever: As body temperature increases with a fever, respiratory rate can also increase. The increase is the body's way of trying to get rid of the heat. Respiratory conditions: Conditions that can increase a person's respiration rate include : chronic obstructive pulmonary disease.
The equipment used is called a respirometer and the effect of changing the temperature on the rate of respiration can be investigated. Respirometers are used to measure the rate of respiration.
Explanation: The increase in temperature enhances the rate of cellular respiration. It is due to the heat speeds up the reactions, means the kinetic energy is higher. It means reactions speed up and rate of cellular respiration increases.
The ratio of the volume of CO2 released to the volume of O2 used in respiration is called respiratory quotient. It is measured with the help of Ganong's respirometer. The value of R.Q. is helpful in determining the type of substrate used and the type of respiration.
The food quotient was then calculated using the following equations: O2 consumption (l/day) И (0.9666 protein intake) З (2.0196fat intake) З (0.8296carbohy- drate intake), and CO2 production (l/day) И (0.7746 pro- tein intake) З (1.4276fat intake) З (0.8296carbohydrate intake), where the intake of protein, fat and ...
Explanation: As temperatures go up, the motion of particles increases. Increased particle speed will mean more collisions between substrate (reactants) and enzymes. The more often enzymes interact with substrate molecules the faster the reaction will go.
When temperature increases, rate of respiration increases as well because the heat speeds up the reactions which means kinetic energy is higher. This means reactions speed up and rate of cellular respiration increases. we expect the seeds in higher temperature to respire faster than the seeds in the lower temperature.
The cellular respiration in plants decreases with a decrease in temperature until the point- when a further decrease in temperature will lead to the freezing of the tissues and plants. The rate of reaction is directly proportional to the change in temperature.
The rate of respiration is influenced by different factors(e.g. temperature, pH, nutrient availability). The effect of each of these factors can be determined by changing one variable only, and observing its effect on the rate of reaction.
The higher the temperature, the more carbon dioxide will be released by yeast, therefore forming a greater amount of bubbles. Once the temperature gets above a certain point the rate of respiration will decrease.
Yeast in the control (pH 7) had significantly greater aerobic respiration compared to the other pH groups (p < 0.0001). Only the yeast in the control (pH 7) group showed a significant increase in respiration with time (p < 0.0001), while the rest showed no change with time.
The varying glucose concentration affects the rate of cellular respiration as all living cells require both glucose and oxygen for their proper functioning. If the cell has a low level of glucose, then it cannot produce the energy -ATP molecules.
The respiratory quotient, also known as the respiratory ratio (RQ), is defined as the volume of carbon dioxide released over the volume of oxygen absorbed during respiration. It is a dimensionless number used in a calculation for basal metabolic rate when estimated from carbon dioxide production to oxygen absorption.
The respiratory quotient is less than one in fats.
If the respiratory substrate is fat, then Respiratory quotient of the respiring cells will be less than 1, because the volume of CO2 evolved is quite less in comparison to the volume of O2 being consumed.
In summary, the current study has found that a high RQ is predictive of gains in body weight and fat mass over a 12-month period among young adults when compared with individuals with a low/moderate or low-RQ value.
The eight environmental factors effecting the rate of respiration are: (1) Oxygen Content of the Atmosphere (2) Effect of Temperature (3) Effect of Light (4) Effect of Water Contents (5) Effect of Respirable Material (6) Effect of Carbon Dioxide Concentration (7) Protoplasmic Conditions and (8) Other Factors.
The cellular respiration rate in yeast can be affected by temperature, as this can alter the amount of oxygen needed for respiration to take place and the amount of energy used. If a high temperature is present, the yeast cells will die and no cellular respiration will take place.
pH affects cellular respiration. Enzymes play a vital role in cellular respiration to catalyse the reaction. Enzymes are said to have an optimum pH and at higher pH levels, the enzymes are denatured and are no longer able to catalyse the reaction. Explore more: Cellular Respiration.
The respiration-water content curve shows a steep gradient, which becomes less steep as the water content decreases. That is, the rate of respiration, as measured by the CO2 output, decreases at a less rate per unit of water content decrease, the less the amount of water present in the tissues.