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Why do fishes die when taken out of water? - Science

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प्रश्न

Why do fishes die when taken out of water?

टीपा लिहा
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उत्तर

Fish do not have lungs that can utilise the oxygen of the air for breathing and respiration. The fish have gills. Gills can only extract the dissolved oxygen from water and provide it to the fish. Gills cannot take in the oxygen from the air. Since fish do not get oxygen for breathing when taken out of water, they die. 

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पाठ 1: Life Processes - Exercise 2 [पृष्ठ ४८]

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लखमीर सिंह Biology (Science) [English] Class 10
पाठ 1 Life Processes
Exercise 2 | Q 42 | पृष्ठ ४८

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

Carbon dioxide enters into the leaves through tiny pores present on the surface of the leaf called _________.
(a) chlorophyll
(b) chloroplast
(c) stomata
(d) epidermis


Which of the following is the correct statement regarding bile?


Name the pores in a leaf through which respiratory exchange of gases takes place.


Name the areas in a woody stem through which respiratory exchange of gases takes place.


What is the name of tiny air-sacs at the end of smallest bronchioles in the lungs?


Name the type of respiration in which the end product is:

C2H5OH and CO2

Give one example  where such a respiration can occur.


Explain how, the air we breathe in gets cleaned while passing through the nasal passage.


How are oxygen and carbon dioxide exchanged in our body during respiration?


Which of the following is the correct sequence of air passage during inhalation?

(a) nostrils → larynx → pharynx → trachea → lungs
(b) nasal passage → trachea → pharynx → larynx → alveoli
(c) larynx → nostrils → pharynx → lungs
(d) nostrils → pharynx → larynx → trachea → alevoli


One of the following animals does not use tracheae as the respiratory organs. This animal is:


One of the following organisms does not depend on the simple diffusion of gases for breathing and respiration. This organism is:


There is a pair of bean-shaped organs P in the human body towards the back, just above the waist. A waste product Q formed by the decomposition of unused proteins in the liver is brought into organ P through blood by an artery R. The numerous tiny filters S present in organ P clean the dirty blood by removing the waste product Q. The clean blood goes into circulation through a vein T. The waste substance Q, other waste salts, and excess water form a yellowish liquid U which goes from organ P into a bag-like structure V through two tubes W. This liquid is then thrown out of the body through a tube X.
(a) What is (i) organ P, and (ii) waste substance Q?
(b) Name (i) artery R, and (ii) vein T.
(c) What are tiny filters S known as?
(d) Name (i) liquid U (ii) structure V (iii) tubes W, and (iv) tube X.


In the lungs what substance is removed from the body?


Choose the odd one out in the following groups of four items each:

Ethyl alcohol, Carbon dioxide, Starch, Oxygen


Which chemical compound inside a cell can be termed "Currency of Energy"?


Rewrite the following statement by selecting the correct option. 
During respiration, ____________ gas is given out.


____________ refers to a biochemical process of oxidation of organic compounds in an orderly manner for the liberation of chemical energy in the form of ATP.


The major fraction of CO2 released during cellular respiration is transported by the blood to the lung capillaries ______


The oxygen dissociation curve is a sigmoid curve and it shifts towards the right due to ______.


Visit a doctor. Find out about artificial respiration. Ask the doctor:

  1. When does a person need artificial respiration?
  2. Does the person need to be kept on artificial respiration temporarily or permanently?
  3. From where can the person get supply of oxygen for artificial respiration?

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