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प्रश्न
An animal in which the oxygenation of blood does not take place in the lungs is:
विकल्प
Cow
Fish
Frog
Fox
उत्तर
Fish
Aquatic animals like fish have gills as their respiratory organs. Gills extract oxygen dissolved in water and take away carbon dioxide from the body.
On the other hand, cow, frog, and fox, breathe through the lungs.
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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
Cellular respiration takes place in
(a) Lysosome
(b) Chlorophyll
(c) Mitochondria
(d) Ribosome
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.
- The air tubes of insects
- Skeletal structures surrounding chest cavity
- Muscular floor of chest cavity
- Tiny pores on the surface of leaf
- Small openings on the sides of the body of an insect
- The respiratory organs of human beings
- The openings through which we inhale
- An anaerobic organism
- An organism with tracheal system
Mention any two components of blood.
The exchange of respiratory gases in the cells of plants occurs by the process of _______________
(a) Osmosis
(b) Diffusion
(c) Glycolysis
(d) exhalation
In the lungs what substance is taken into the body?
Explain why, a land plant may die if its roots remain waterlogged for a long time.
Describe the process of respiration in the following part of a plant:
Leaves
What is the function of the respiratory system?
Give the main points of difference between respiration in plants and respiration in animals.
One of the following animals does not use tracheae as the respiratory organs. This animal is:
Out of xylem and phloem, which one carries materials upwards as well as downwards?
Tick the most appropriate answer.
The products of respiration are :
Answer the following in detail.
How is the process of cellular respiration different from breathing?
Choose the odd one out in each of the following groups of four items each:
Oxyhaemoglobin, Carbaminohaemoglobin, Hypoxia, Carboxyhaemoglobin
Match the items in Column A with those in Column B.
|
Column A |
Column B |
|
Cartilaginous |
Epiglottis |
|
Large surface area |
Diaphragm |
|
Breathing movements |
Bronchi |
|
Voice |
Alveoli |
|
Complemental air |
Larynx |
|
Swallowing |
Extra inhalation |
Draw a diagram of the human respiratory system and label - pharynx, trachea, lungs, diaphragm and alveolar sac on it.
____________ 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.
Respiration refers to ____________.
On a very cold morning, Boojho and Paheli were talking with each other as they walked down to their school. They observed that the air coming out of their mouth looked like smoke. They were amused and wondered how it happened. Help them find the answer.
