A Study On Gas Exchange Essay

The two body organ systems involved in gas exchange are the respiratory and cardiovascular systems. O2 and CO2 cross the cell membrane via simple diffusion. Because cells all throughout the body require oxygen and the removal of carbon dioxide, this simple method of diffusion is the best way to transport such small molecules over a large area as efficiently as possible.

The definition of a mammal is a warm-blooded animal of a class that is easily distinguished by the possession of hair or fur.

This experiment was designed to identify the effect of cold-water temperatures on the respiration rate of goldfish. The respiration rates helped to identify the goldfish as being ectotherms or endotherms. Organisms exchange gases with their environment through a process called respiration or breathing. Aerobic respiration, also known as aerobic metabolism, occurs when oxygen is taken into the body and sent to all its cells; the oxygen is then used to break down food for energy (White and Campo 2008). Respiration can be experienced through several structures such as the lungs, tracheae, gills, and integument in order to obtain

Answer 2: The respiratory system functions in the exchange of gases with the outside environment. Oxygen is inhaled through the nasal cavity or the mouth, and it travels to the alveoli in the lungs. There, the capillaries exchange the oxygen for carbon dioxide. The oxygenated blood flows back to the heart from the lungs. It enters the left side of the heart and is delivered to all the body tissues via the aorta. In the capillaries of the body tissues, oxygen is exchanged for carbon dioxide. This deoxygenated blood flows back to the right side of the heart and then to the lung. In the capillaries that run across the alveoli, carbon dioxide is exchanged for oxygen that has recently been inhaled. The carbon dioxide will then be exhaled through the mouth and nasal cavity.

The act of breathing starts from the mouth. You breathe in air through your mouth and nose, and it travels through the back of your throat and down your wind pipe or trachea. Your trachea the divides itself into air passages called bronchial tubes. For your Lungs to perform at their best these passages needed to be clear during inhaling and exhaling. And free from mucus swelling and inflammation.

Transportation of dissolved gases (carbon dioxide and oxygen), nutrients, enzymes, blood cells (white blood cells 'leucocytes' and red blood cells 'erythrocytes'), hormones and metabolic wastes.

The bronchi separates into smaller passages called bronchioles. The bronchioles connect the bronchi to the alveoli. Alveoli The alveoli are tiny air sacs, these air sacs allow gas exchange to occur. The oxygen is absorb into the blood stream, the carbon dioxide is released through the air sacs.

Mammals are amniotes as well and share a common ancestor with the reptiles. However they represent a

All organisms need to respire to survive. Respiration requires oxygen which is brought into the body during gas exchange. In gas exchange oxygen is taken from the water or air into the bloodstream and carbon dioxide is released.

In their Respiratory system, the trachea allows the carbon dioxide filled air into the lungs,

They have a bony endoskeleton with a backbone and jaws, their skin is covered with hair or fur.

The chthonic hypothesis, as proposed by J. Lighton , suggests that the discontinuous gas exchange system used has evolved to accommodate insects that live in hypoxic conditions for the large majority of their lives. It is plausible that the respiratory system of insects is not the most efficient at CO2 diffusion under normocapnic conditions (21% O2 in the atmosphere). This system consists of external valve like openings, called spiracles, that channel oxygen into the body and allow CO2 to exit. From the spiracle, oxygen is sent through a series of progressively narrowing tracheae and tracheoles, and is diffused directly into the tissue and cells. This process relies mainly on passive diffusion and therefor internal and external gas pressures. Emekci et al examined the respiratory patterns of Tribolium castaneum in environments with atmospheric oxygen contents of 1%, 2%, 3%, 5%, 10%, and 15%. In adult specimens, CO2 output was high at 3-10% O2, with a respiratory quotient of 1.18 at 5%. This can be compared to the respiratory quotient of 0.88 observed at 21% O2. This research supports the theory that normocapnic conditions are not the optimal conditions for the respiratory system of insects to function under due to its designs that relies on environmental gas pressures and concentrations to facilitate

The respiratory system is the process responsible for the transportation and exchange of gases into and out of the human body. As we breath in, oxygen in the air containing oxygen is drawn into the lungs through a series of air pipes known as the airway and into the lungs. As air is drawn into the lungs and waste gas excreted, it passes through the airway, first through the mouth or nose and through the pharynx, larynx and windpipe – also known as the trachea. At this point it then enters the lungs through the bronchi before finally reaching the air sacs known as alveoli. Within the lungs, through a process known as diffusion, the oxygen is transferred to the blood stream through the alveoli (air ducts) where it is then transported inside

Discuss the process of exchange of O2 and CO2 that occurs at the alveoli and muscle cells of mammals. Include a description of the transport of the gases in the blood and the role of haemoglobin.

An insect is any small invertebrate animal e.g. grasshopper, locust, caterpillar etc. that have three segments known as a head, thorax and abdomen. Insects have an open circulatory system, and a fluid known as haemolymph that flows through their bodies. Respiration - the energy release process carried out in the mitochondria occurs in the cells and gas exchange in insects occurs in the tracheal system. The tracheal system opens to the exoskeleton of the insect through small pores known as spiracles. Spiracles are often arranged on either side of the body segments. These pores are often found with fine hairs which filter the air as it enters the tracheal