Gill breathing exercises

A gill breathing occurs when gas exchange is carried out through the gills. They are highly vascularized structures and the capillaries exchange the oxygen of the water passes through carbon dioxide which is in the animal's body.

We prepared a list of gill breathing exercises so that you can test your knowledge about this type of breathing of animals that have an aquatic life habit at some point.

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Gill breathing exercises

1) (UFPel) The gill breathing system of fish works by removing oxygen dissolved in the water, capturing it for its body through its gill filaments, by diffusion fizzy. Carbon dioxide, from metabolism, is also eliminated to the external environment through the gill filaments. Based on the text above, it can be stated that:

a) oxygen enters the circulation of fish through the gill capillaries, given its lower concentration in the aquatic environment;

b) oxygen enters the circulation of fish through the gill capillaries, given its higher concentration in the aquatic environment;
c) carbon dioxide enters the circulation of fish through the gill capillaries, given its higher concentration in the aquatic environment;
d) carbon dioxide leaves the circulation of fish through the gill capillaries, given its higher concentration in the aquatic environment.
e) for respiration purposes, both carbon dioxide and oxygen enter and leave the fish organism, not necessarily through the gills, but through any region of the animal's body.

2) (PUC-PR) Breathing is the vital phenomenon by which living beings extract chemical energy stored in food and use it in their various metabolic processes. In the respiratory mechanism, animals can exchange gases with the environment in several ways. Thus we have the examples of animals with the corresponding type of breathing:

(1) worm
(2) shark
(3) grasshopper
(4) chicken
(5) spider
( ) tracheal breathing
( ) tracheal breathing
( ) skin breathing
( ) gill breathing
( ) lung breathing
Tick ​​the alternative with the correct sequence:
a) 3 – 5 – 4 – 2 – 1.
b) 5 – 3 – 2 – 4 – 1.
c) 3 – 4 – 5 – 1 – 2.
d) 5 – 3 – 1 – 2 – 4.
e) 1 – 2 – 3 – 4 – 5.

3) Analyze the animals below and mark the only one that does not breathe through gills.

a) Lobster.
b) Sardines.
c) Dolphin.
d) Shark.
e) Stingray.

4) (UEL) Consider the following characteristics:

i. thin epithelium.
II. wet surface.
III. intense vascularity.
IV. impermeable epithelium.
Pulmonary and gill breathing have only this in common:
a) I and II.
b) I and III.
c) III and IV.
d) I, II and III.
e) II, III and IV.

5) In the gills of fish, it is observed that the flow of water occurs in the opposite direction of the blood flow, a process that guarantees more efficiency in the capture of oxygen. This process is known as:

a) hematosis.
b) exchange for countercurrent.
c) reverse exchange.
d) oxygenation current.
e) current oxygenation.

6) (CESGRANRIO) Gills and lungs are organs whose structure reflects the function they perform. The content of this statement is based mainly on the fact that both present:

a) branched structure, which allows a large contact surface with water or atmospheric air.
b) compact structure, which provides great protection of the folds through which the gases are diffused.
c) large number of channels, which makes the oxygen gas go directly to the cells throughout the body.
d) rich vascularization, which allows the body to quickly eliminate oxygen gas.
e) extensive network of leukocytes, which stimulates greater uptake of gases from water or atmospheric air.

7) Analyze the following alternatives and mark the one that correctly indicates the place where the water enters and exits in the breathing of the fish.

a) Water enters through the mouth and exits through the gills.
b) Water enters through the nostrils and exits through the gills.
c) Water enters through the mouth, passes through the gills and exits through the nostrils.
d) Water enters through the nostrils, passes through the gills and exits through the mouth.
e) Water enters through the mouth and passes through the lungs.

8) (UFT) The main respiratory organ in fish and amphibians is respectively:

a) gills and skin.
b) skin and lung.
c) gills and lungs.
d) lung and trachea.

9) Some animals have thin, blade-shaped and richly vascularized structures that allow gas exchange in the water. Animals that have this structure breathe like this:

a) lung.
b) branchial.
c) cutaneous.
d) tracheal.

10) (CESGRANRIO) The presence of an operculum, a structure that covers the gills in bony fish, allows efficient gas exchange even when the fish is still. This is because the operculum allows better oxygen uptake due to:

a) break down water molecules.
b) entry of water through the gills.
c) removal of gases from the swim bladder.
d) active transport carried out by this structure.
e) greater contact of water with the gills.

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See too:

• List of exercises on vacuoles
• List of exercises on active and passive transport
• List of exercises about viruses and their characteristics