Respiratory quotient, Biology

Assignment Help:

Respiratory Quotient

Table also shows the ratio of the volume of carbon dioxide evolved to that of the amount of oxygen consumed during oxidation. This is the respiratory' quotient or RQ. It is an important concept in energy metabolism. From the table you can see that RQ is usually between 0.7 and 1.0. However, RQ near 0.7 shows that fat is being metabolised and RQ near 1.0 suggests carbohydrate metabolism. RQ in between 0.7 and 1.0 could indicate either protein or a mixed diet metabolism.

1196_Heat production and respiratory quotient for foodstuff types.png

Quite often animals cannot utilise the entire food value because not all the food they consume is fully digested. Also some portion is excreted as urea or ammonia. In general, it has been observed that animals have a higher intake of food than what is indicated by their oxygen consumption data so that their body weight is kept steady'. The oxygen consumption per unit weight/per unit time mm 3O2/g/hr tends to decrease with higher body weight of animals. In other words, small sized animals like mouse, shrew, etc., have a higher metabolic rate than a large sized animal (an elephant) as evidenced by their oxygen consumption. Accordingly smaller animals have a need to feed constantly. This would also mean that an elephant can survive without food for a much longer period of time than a mouse.


Related Discussions:- Respiratory quotient

Explain functional property of waterbinding - whey protein, Explain Functi...

Explain Functional property of  WaterBinding/ Hydration Mode of action  Proteins can help reduce formula costs as the proteins hold additional water. Food system

Examine six bad listening habits, Discuss six bad listening habits. Which d...

Discuss six bad listening habits. Which do you think is the biggest challenge for you personally?

Parasternal position, Examination is begun by placing the transducer in l...

Examination is begun by placing the transducer in left parasternal region, usually in the third or fourth left intercostal space. From this position, a sector image of the heart

Metabolism of lipids, The three main forms of fat found in food are glyceri...

The three main forms of fat found in food are glycerides (principally triacylglycerol [triglyceride], the form in which fat is stored for fuel), the phospholipids, and the sterols

Explain about the enteral feeding in elderly, Explain about the Enteral fee...

Explain about the Enteral feeding in elderly? Enteral, as you may already be aware, is defined as provision of nutrition support through the GI tract or by accessing the gut. Th

What is the name of the dna duplication process, What is the name of the DN...

What is the name of the DNA duplication process? What is the main enzyme that participates in it? The process of copying, or duplication, of the DNA molecule is called replica

Find the equilibrium molality of solute species, Find the equilibrium molal...

Find the equilibrium molality of solute species? Consider a hypothetical system in which two aqueous solutions are separated by a semipermeable membrane. Solution α is prepared

Advances in neurodiagnostic techniques, Advances in neurodiagnostic techniq...

Advances in neurodiagnostic techniques Major scientific and technology advances have made it easier to correlate behaviours suspected as having a neurological basis with actual

Determine the characteristics of soil profile, Characteristics of Soil Prof...

Characteristics of Soil Profile  The profile characteristics studied in the field consist of locating the soil hor izons (based on its colour description that includes the  col

Explain crossing over in genetics, Explain Crossing Over in genetics? C...

Explain Crossing Over in genetics? Crossing over is when the arms of homologous chromosomes exchange segments (and therefore genes) with each other. Recall that one of the homo

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd