Tag: respiration in other organisms

Quizzes (0) Questions (32)

Questions Related to respiration in other organisms

Multiple choice biology respiration in living organisms breathing underwater respiration in other organisms respiration in organism

The excessive increase in the number of aquatic plants creates a disturbance for the aquatic animals because

  1. It decreases dissolved oxygen content.

  2. It increases dissolved oxygen content.

  3. It increases dissolved carbon dioxide content.

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • In aquatic environments, free-floating microscopic plants known as algae, and larger submersed plants (macrophytes), release oxygen directly into the water where it is used by animals and other organisms, including the plants themselves. 
  • Fish and other aquatic organisms don’t use oxygen from water molecules ($H _2O$). This is because the single oxygen molecule ($O$) is bound to the two hydrogen molecules ($H _2$) and is not useable in this form.
  •  Instead, aquatic organisms depend on dissolved oxygen gas ($O _2$), a colourless, tasteless and odourless substance that enters the water from plants and the atmosphere. Hence, The excessive increase in the number of aquatic plants creates a disturbance for the aquatic animals because It decreases dissolved oxygen content.
So, the correct answer is 'It decreases dissolved oxygen content.'.
Multiple choice biology respiration in living organisms breathing underwater respiration in other organisms respiration in organism

The adult frog breathes by 

  1. Gills

  2. Lungs

  3. Moist skin

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Frog are amphibians and they can survive on land and water both. In water they breathe through gills while on land they have fully developed lungs to breathe. During hibernation, when they are not active they take oxygen from the moist skin by the process of diffusion. 

So, the correct answer is option B.

Multiple choice biology respiration in living organisms breathing underwater respiration in other organisms respiration in organism

The protective covering on the gills are known as

  1. Operculum

  2. Gills

  3. Spiracles

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gills are the respiratory organs of the fishes. It helps in gaseous exchange by absorbing the dissolved oxygen in water. The gills are covered by a bony covering which is known as operculum. It is used for respiration and feeding. Gills have gills lamellae through which the blood flows opposite direction to the water. The dissolved oxygen from the water diffuses into the blood capillaries.  

So, the correct answer is option A.

Multiple choice biology respiration in living organisms breathing underwater respiration in other organisms respiration in organism

During the hibernation, the frog mainly breathes through

  1. Moist skin

  2. Gills

  3. Lungs

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Frog are amphibians and they can survive on land and water both. In water they breathe through gills while on land they have fully developed lungs to breathe. It undergoes hibernation as it is cold blooded and the body temperature fluctuates with the surrounding. During hibernation the diffused oxygen is taken from moist skin.  

So, the correct answer is option A.

Multiple choice biology respiration in living organisms breathing underwater respiration in other organisms respiration in organism

Why do fishes die when taken out of water?

  1. Fishes respire with the help of gills.

  2. Gills are richly supplied with blood capillaries and can readily absorb oxygen dissolved in water.

  3. Both A and B.

  4. Fishes can not tolerate the atmospheric air pressure.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Fishes respire with the help of gills. Gills are richly supplied with blood capillaries and can readily absorb oxygen dissolved in water. But gills can not absorb gaseous oxygen. Since fishes cannot absorb gaseous oxygen they die soon after they are taken out of the water.

Multiple choice biology respiration in living organisms breathing underwater respiration in other organisms respiration in organism

Which organ is used by fishes for their respiration?

  1. Gills

  2. Skin

  3. Fin

  4. Nostril
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gills are tissues which consist of cloth and fabric structures called filaments. These filaments have many functions including the transfer of ions and water, as well as the exchange of oxygen, carbon dioxide, acids and ammonia.

Multiple choice biology respiration in living organisms breathing underwater respiration in other organisms respiration in organism

During hibernation, the organism that respire through skin only is

  1. Bird

  2. Frog

  3. Bacteria

  4. Tortoise
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Frogs aren't restricted to breathing only through their lungs. Frogs that spend the coldest times of the year inside of the mud or within rotten heaps of leaves receive their necessary oxygen through their skin. This is referred to as cutaneous gas exchange. They use their skin to soak in the oxygen their bodies require. When frogs hibernate, they utilize the skin for any and all breathing. Damp skin is a must for subcutaneous gas exchange. If a frog's skin becomes dry, it will no longer be able to take in oxygen. Thus, option B is correct.

Multiple choice biology respiration in living organisms breathing underwater respiration in other organisms respiration in organism

Which of the following has no blood but respires? 

  1. Earthworm

  2. Hydra

  3. Cockroach

  4. Fish
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In animals, three main types of respiratory systems exist: respiration through the skin, respiration through the gills or respiration through internal air structures. Respiration through the skin, as in the hydra, involves the passing of molecules into and out of the body via diffusion. Aquatic animals use gills, which are structures composed of tissues and blood vessels that extend from the body, for their respiration needs. Most terrestrial animals use internal air structures, such as lungs or tracheae, to respire. 

Therefore, the correct answer is option B.

Multiple choice biology respiration in living organisms breathing underwater respiration in other organisms respiration in organism

The functional respiratory organ of a fully formed tadpole is the

  1. Skin

  2. Lung

  3. Gill

  4. Air bladder
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

While both the tadpole and the frog like other organisms need to take in oxygen from the environment, the respiratory mechanisms differ. The tadpoles make use of gills and the mature frogs respire need to take in oxygen from their environment, and the way they respire also changes as they develop. Tadpoles use gills, while mature frogs have three types of respiration- skin, buccal pumping and lungs

Therefore, the correct answer is option C.