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प्रश्न
State one function of the following:
Intercostal muscles
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उत्तर
The muscles help the inward and outward movement of ribs enlarging the chest cavity all around.
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संबंधित प्रश्न
Given below are the end products of different reactions involving glucose.
Write the reaction number in front of the following:
(i) Anaerobic reaction =
(ii) Reaction in the human muscles =
(iii) Aerobic respiration =
(iv) Reaction in the plant cells =
(v) Reaction in the liver
What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration?
The trachea divides into tow tubes at its lower end. What is the name of these tubes?
During respiration, the plants take CO2 and release O2.
Draw a labelled diagram of the human respiratory system.
Which contains more carbon dixoide : exhaled air or inhaled air? Why?
Which of the following statements are true about respiration?
(i) during inhalation, ribs move inward and diaphragm is raised.
(ii) the gaseous exchange takes place in the alveoli.
(iii) haemoglobin has greater affinity for carbon dioxide than oxygen.
(iv) alveoli increase surface area of the exchange of gases
Which of the following is known as the energy currency of the cells in biology?
The two organisms which breath only through their moist skin are:
During the respiration of an organism A, 1 molecule of glucose produces 2 ATP molecules whereas in the respiration of another organism B, 1 molecule of glucose produces 38 ATP molecules.
(a) Which organism is undergoing aerobic respiration?
(b) Which organism is undergoing anaerobic respiration?
(c) Which type of organism, A or B, can convert glucose into alcohol?
(d) Name one organism which behaves like A.
(e) Name two organisms which behave like B.
An organism X having breathing organs A lives on land. When organism X goes underwater, it cannot survive for a long time unless carrying an oxygen cylinder. On the other hand, the organism Y having breathing organs B always lives in water and if taken out of the water, it dies after a short while. A third organism Z having breathing organs C and D which lives on the banks of ponds, lakes, and rivers can survive on land as well as in water equally well.
(a) What could organism X be? Name the breathing organs A.
(b) What could organism Y be? Name the breathing organs B.
(c) What could organism Z be? Name the breathing organs C and D.
(d) Out of X, Y, and Z, which organism is (i) amphibian, (ii) aquatic, and (iii)
terrestrial?
Name the body structure concerned with the given functional activity:
Combines with the oxygen in the lungs.
What is the normal percentage composition of gases in inspired and expired air respectively?
Given below is an example of certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
Mitochondria and _____________.
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 |
Given below is an overall chemical reaction of a certain process:
C6H12O6→LacticAcid+2ATP+Heat energy
Is this reaction applicable to animals or to plants or to both animals and plants?
Define respiration.
Name the energy currency in the living organisms. When and where is it produced?
During the process of exhalation, the ribs move ______.
