Based on the study done by Taylor et al. (1970), the animal whose rate of oxygen consumption relative to its running speed creates a linear plot is a b. kangaroo.
The oxygen consumption measurements were made on two animals of different body masses which are 7.8496g and 18.2584g. The bigger the body size of an animal, the higher the body mass, the higher the total oxygen consumption for the animal.
Species that live at higher temperatures consume more oxygen that arctic species of same genus that live in lower temperatures. Therefore, the rate of oxygen consumption of animals from warm and colder habitats is considered.
Therefore the rate of oxygen consumption in each species differs. Rate of respiration depends upon blood carbon dioxide level expressed as CO2, which in turn controls the series of reflexes to adjust changed respiratory demands of the body. Respiration is accelerated when the oxygen and carbon dioxide contents fluctuates.
There are two types of respiration namely the internal and external respiration. As mentioned by Rastogi (1982) the internal respiration or also known as cellular respiration involved the supply of oxygen to the tissues and the production of carbon dioxide and metabolites due to metabolism activities while external respiration is basically ...
The frogs of relatively small size are put inside a plastic bag and weighed to the nearest mg and introduced into the chamber. The cork fitted with pipette is put and syringed and tightly fitted to the mouth of the bottle. The frogs are kept at rest for at least one minute inside the chamber before experiment started.
Respiration is accelerated when the oxygen and carbon dioxide contents fluctuates. Respiration process itself depends on site of gaseous exchange. Oxygen concentration is greater in lung alveoli (101 mmHg) than in blood of the lung capillaries (40 mmHg). Oxygen will diffuses naturally into the blood capillaries.
Carbon dioxide diffuses from blood into the alveoli thus diffusion of both oxygen and carbon dioxide gases, there is diffusion gradient that determines the direction of their transport. The oxygen consumption measurements were made on two animals of different body masses which are 7.8496g and 18.2584g.
The frogs are kept at rest for at least one minute inside the chamber before experiment started. A drop of coloured indicator solution (marker) is added in the pipette and adjusted to start position (0.0 ml) using the syringe. The movement of the marker is recorded at 5 minutes interval for 30 minutes.
KOH is used to absorb the carbon dioxide produced by the frogs during respiration. In this way, the marker moved in one way, inward.
For animals that have similar physiology, their rates of oxygen consumption increases as their body mass increases. Toad is a poikilothermic.