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Which contains more carbon dixoide : exhaled air or inhaled air? Why? - Science

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प्रश्न

Which contains more carbon dixoide : exhaled air or inhaled air? Why?

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उत्तर

Exhaled air contains more carbon dioxide because we exhale to remove the waste product, i.e. carbon dioxide, from our body.

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

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लखमीर सिंग Biology (Science) [English] Class 10
अध्याय 1 Life Processes
Exercise 2 | Q 49.3 | पृष्ठ ४८

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संबंधित प्रश्न

How are the lungs designed in human beings to maximize the area for exchange of gases?


Given below is a square of letters in which are hidden different words related to respiration in organisms. These words may be present in any direction − upwards, downwards, or along the diagonals. Find the words for your respiratory system. Clues about those words are given below the square.

  1. The air tubes of insects
  2. Skeletal structures surrounding chest cavity
  3. Muscular floor of chest cavity
  4. Tiny pores on the surface of leaf
  5. Small openings on the sides of the body of an insect
  6. The respiratory organs of human beings
  7. The openings through which we inhale
  8. An anaerobic organism
  9. An organism with tracheal system

The trachea divides into tow tubes at its lower end. What is the name of these tubes?


Describe the process of respiration in the following part of a plant:

Stem


Describe the process of respiration in the following part of a plant:

Leaves


 What is meant by aquatic animals and terrestrial animals?


Name the energy currency in the living organisms. When and where is it produced?


What are the major organs of respiratory system in man (or humans)?


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


Describe the exchange of gases which takes place in the leaves of a plant

(a) during daytime, and (b) at night.


During the deficiency of oxygen in tissues of human beings, pyruvic acid is converted into lactic acid in:


Some sugar solution is taken in a test-tube and a little of substance X in powder form is added to it. The mouth of test-tube is closed with a cork and allowed to stand for sometime. On opening the cork, a characteristic smell of substance Y is obtained and a gas Z is also observed to be formed. The gas Z extinguishes a burning matchstick.

(a) What could be (i) X, (ii) Y, and (iii) Z?

(b) What is the process of converting sugar into substance Y by the action of X known as?

(c) What type of respiration is exhibited by X in the above process?


In the lungs what substance is removed from the body?


Given below is an example of certain structure and its special functional activity: 

"Kidney and excretion".

Fill in the blanks on a similar pattern. 

Alveoli and _____________.


Given below is an example of certain structure and its special functional activity:

"Kidney and excretion".

Fill in the blanks on a similar pattern.

Epiglottis and _____________.


State one function of the following:

Ciliated epithelium lining the respiratory tract


Identify the CORRECT sequence of events for the transport of respiratory gases.


Which of the following indicates the shift of oxyhaemoglobin dissociation curve due to change in ppC02 in blood?


With which of the following haemoglobin combines to form carboxyhaemoglobin?


The exchange of gases in the leaves takes place with the help of __________.


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