Respiration in cockroach Cockroach is a terrestrial organism found in damp areas. A cockroach has small openings on the side of its body. These openings are called spiracles. Insects have a network of air tubes called tracheae for gas exchange.

1. RESPIRATION IN ORGANISMS-3
BREATHING IN OTHER ORGANISMS
CLASS-VII CBSE

2. BREATHING IN OTHER ANIMALS
Animals such as elephants, lions, cows, goats, frogs, lizards, snakes,
birds, have lungs in their chest cavities like the human beings.

3. Respiration in cockroach
Cockroach is a terrestrial organism found in damp areas.
A cockroach has small openings on the side of its body.
These openings are called spiracles. Insects have a network of air
tubes called tracheae for gas exchange.

4. Oxygen rich air rushes through spiracles into the tracheal tubes,
diffuses into the body tissues and reaches every cell of the body.

5. Similarly, carbon dioxide from the cells goes into the tracheal tubes
and moves out through spiracles. These air tubes or tracheae are
found only in insects.

6. Respiration in Earthworm
The skin of the earthworms feels moist. That is why they are called
slimy creatures. The reason behind their moist skin is that
earthworm’s breathing organ is their skin.

7. They are found in the upper layer of the soil and improves the soil
fertility. It feeds on the dead and decaying matter present in the soil.

8. They do not have any specialized respiratory system. But they
respire through their moist and slimy skin due to the moisture
present in soil and the mucus present in their body.

9. Air can easily pass through the skin of an earthworm. The exchange
of gases usually takes place through its moist skin and capillaries.
In these regions the oxygen gas is picked up by the haemoglobin
dissolved in the blood and carbon dioxide is released out.
Earthworms can also use their skin to move water and salts by active
transport.

10. During the rainy season the soil is too wet. That creates a problem in
the respiration of the earthworm. Hence they come out to the surface
and respire comfortably.

11. Respiration in Frog
Frogs are short-bodied, tailless amphibians.
They are carnivores. The moist and slimy makes it easy for the gas
to pass through it. They have dual system that helps them to
breathe. They have a pair of lungs just like human beings.

12. When their skin is moist or when they are in water they breathe
through their thin and membranous skin which is permeable to both
water and gases.

13. When they are on land, they take air into their lungs by pushing it
from their mouths with their nostrils closed.

14. Respiration in Fish
Fish are vertebrates living in water. The rate of breathing of aquatic
animals is higher than the terrestrial animals (animals that lives on
land) because percent of oxygen present in water is less than percent
of oxygen present in atmosphere. So higher rate of breathing
enables them to take up more oxygen.

15. Fishes have certain projections on their body known as gills. These
are feathery organs .These gills are connected with blood vessels for
easy exchange of gases. These gills help the aquatic species like fish
to utilize the oxygen dissolved in the water.

16. The gills continuously keeps on moving that enables it to take the water.
It takes the water through its mouth and forces it through the gills.
As water passes through the thin walls of the gills the dissolved oxygen
moves into blood vessel and travels to the different cells and tissues of
the body of the fish.

17. DOLPHINS
Dolphins and whales do not have gills. They breathe in air through
nostrils or blowholes located on the upper parts of their heads. This
allows them to breathe in air when they swim near the surface of
water. They can stay inside the water for a long time without
breathing.

18. Aquatic crabs, like fish, have gills to get the oxygen from water.
Land crabs have specially adapted gills that work on land. Some types
of land crabs even have lungs. ... Their gills work great out of the water,
so long as they are kept moist.

19. Like all other living cells of the plants, the root cells also need oxygen
to generate energy. Roots take up air from the air spaces present
between the soil particles.

20. Plants do require oxygen to respire, the process in return gives out
carbon dioxide. Unlike humans and animals, plants do not possess any
specialized structures for exchange of gases, however, they do possess
stomata (found in leaves) and lenticels (found in stems) actively involved
in the gaseous exchange. Leaves, stems and plant roots respire at a low
pace compared to humans and animals.

21. Respiration In Roots
Roots, the underground part of the plants, absorbs air from the air
gaps/spaces found between the soil particles. Hence, absorbed oxygen
through roots is utilized to liberate the energy that in the future, is used to
transport salts and minerals from the soil.

22. Respiration In Stems
The air in case of stem diffuses into the stomata and moves through
different parts of the cell to respire. During this stage, the carbon dioxide
liberated is also diffused through the stomata. Lenticels are known to
perform gaseous exchange in woody or higher plants.

23. Respiration In Leaves
Leaves consist of tiny pores known as stomata. Gaseous exchange occurs
through diffusion via stomata. Guard cells regulate each of the
stomata. Exchange of gases occurs with the closing and opening of the
stoma between the inferior of leaves and the atmosphere.

24. Aquatic plants have their leaves near or under the water, but they also
need to breathe. Plants that float on the surface of the water have their
stomata on top, where they have access to air.

25. Plants that live completely under water gather carbon dioxide from the
water. When they release oxygen you can see tiny air bubbles gathering
around them.

26. Gillyweed is a magical plant that, when eaten, allows a human to breathe
underwater. It is said to resemble a bundle of slimy, grey-green rat tails.
When eaten, Gillyweed causes a person to grow gills and allows him or
her to breathe underwater. He or she will develop webbed feet and
fingers, making swimming easier. The effect lasts about one hour.