The process of repiration in a frog.?

Answer 1

Frogs use gills in the tadpole stage, and develop lungs later on when they lose their gills. As adults, they also are able to breathe by simply inflating a pouch in their mouths, which is a third type of respiration unique to frogs.

Answer 2

RESPIRATION

In order to live, fish must extract oxygen from the water and transfer it to their bloodstream. This is done by gills, lungs, specialized chambers, or skin, any of which must be richly supplied with blood vessels in order to act as a respiratory organ. Extracting oxygen from water is more difficult and requires a greater expenditure of energy than does extracting oxygen from air.

Gills are made efficient in a number of ways. (1) A large surface area for gaseous exchange means that more oxygen can enter the bloodstream over a given period of time. A single gill of a bony fish consists of a curved gill arch bearing a V-shaped double row of gill filaments. Each filament has many minute folds in its surface, giving it a sort of fuzzy appearance and increasing the amount of surface area along a given length of filament. Consequently, the surface area of the gills is commonly 10 to 60 times more than that of the whole body surface. (2) A short diffusion, or travel, distance for the oxygen increases the rate of oxygen entry into the blood. The blood traveling in the folds of the filaments is very close to the oxygen-containing water, being separated from it by a very thin membrane usually 1 to 3 microns (4/100,000 to 1/10,000 in) thick, and possibly less. (3) By using countercurrent circulation in the gill, the blood in the filament folds travels forward, in the opposite direction to the water flow, so that a constant imbalance is maintained between the lower amount of oxygen in the blood and the higher amount in the water, ensuring passage of oxygen to the blood. If the blood were to flow in the same direction as the water, oxygenated blood at the rear of the gills would be traveling with deoxygenated water and not only could not extract oxygen from the water but would even lose oxygen to it. (4) Gills have little physiological dead space. The folds of the filament are close enough together so that most of the water passing between them is involved in the gas-exchange process. (5) Water flows continuously in only one direction over the gills, as contrasted with the interrupted, two-way flow of air in and out of lungs of mammals.

Answer 3

1. through the skin. (it has blood vessels near the surface of the skin) oxygen can go through the skin and directly into the bloodstream.

2. lungs. when they are on land. just like humans.

Answer 4

Lungs.

There are four ways. Lungs,gills,buccopharynx and the skin

Answer 5

They take in oxygen and release co2 by their skin, lungs and sometimes tissue in their throats.

Answer 6

The process of respiration takes place when oxygen is inhaled into the lungs and exhaled out as carbon dioxide after being circulated through the blood.