What is the name given to the exchange of oxygen and carbon dioxide?

What is the name given to the exchange of oxygen and carbon dioxide?

The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation). This exchange of oxygen and carbon dioxide is called respiration.

What percentage of oxygen is removed from the water using this method of gas exchange?

The efficiency of gills has to be – and is – very high – 70 to 80% of the available oxygen is extracted from the water.

What is the site of gas exchange in fish?

Fish gills are organs that allow fish to breathe underwater. Most fish exchange gases like oxygen and carbon dioxide using gills that are protected under gill covers (operculum) on both sides of the pharynx (throat). Fish exchange gases by pulling oxygen-rich water through their mouths and pumping it over their gills.

What is the gas exchange surface for insects?

Spiracles are tiny pores on the surface of insects through which air can pass into and out of the organism. Insects use their tracheae as their gas exchange organ.

Is the site of gaseous exchange in an insect?

Gaseous exchange in insects occurs through a system of air-filled internal tubes, the tracheal system, the finer branches of which extend to all parts of the body and may become functionally intracellular in muscle fibers. Thus oxygen is carried in the gas phase directly to its sites of utilization.

Where does gas exchange occur in frogs?

The frog has three respiratory surfaces on its body that it uses to exchange gas with the surroundings: the skin, in the lungs and on the lining of the mouth. While completely submerged all of the frog’s repiration takes place through the skin.

What causes the diffusion of oxygen molecules into the muscle Fibre?

1. When cells are respiring, oxygen is used up and so its concentration towards the ends of the tracheoles falls. 2. This creates a diffusion gradient that causes gaseous oxygen to diffuse from the atmosphere, along the tracheae and tracheoles to the cells.

What causes spiracles to open?

What stimulates spiracles to open? Increasing level of carbon dioxide. An insect lives in dry conditions. Therefore less water loss through spiracles occurs.

Why is one way flow an advantage to fish?

It allows maximum oxygen to be absorbed by the blood from the water, by maintaining the concentration gradient the whole way through the gills. This means fish can get enough oxygen without having to push large amounts of water through their gills. The unidirectional flow of water is another advantage.

Why do small worms not need gills?

Explain why these small worms do not need gills to obtain sufficient oxygen. In many of the lugworm gills, the blood flows in the opposite direction to the current of water passing over them.

Which process moves oxygen from the lungs into the blood?

diffusion