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प्रश्न
State whether the statement is true or false:
Aquatic animals breathe at a slower rate than the terrestrial animals.
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उत्तर
False.
Aquatic animals breathe at a faster rate than terrestrial animals.
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संबंधित प्रश्न
What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration?
What is the name of tiny air-sacs at the end of smallest bronchioles in the lungs?
In the lungs, what substance is taken into the body?
Name the type of respiration in which the end products are:
C2H5OH and CO2
Give one example where such a respiration can occur.
Give the main points of difference between respiration in plants and respiration in animals.
Which of the following is most likely to have a much higher breathing rate?
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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. |
- What could be (i) X, (ii) Y, and (iii) Z?
- What is the process of converting sugar into substance Y by the action of X known as?
- What type of respiration is exhibited by X in the above process?
When a person breathes in air, the air enters into his body through an organ A having two holes B in it. The air then passes through pharynx and larynx and enters into a tube C. The tube C divides into two smaller tubes D at its lower end. The two smaller tubes are attached to two respiratory organs E. Each smaller tube divides inside the organs E to form a large number of still smaller tubes called F. The smallest tubes F have air-sacs G at their ends in which gaseous exchange takes place in the body of the person. What are A, B, C, D, E, F and G?
Veins and arteries carry blood. Which of these carry blood away from the heart?
Choose the odd one out in the following groups of four items each:
Trachea, Ciliated epithelium, Mucous, Diffusion
Name the body structure concerned with the given functional activity:
Provides actual diffusion of respiratory gases 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.
Alveoli and _____________.
State one function of the following:
Intercostal muscles
Draw a diagram of the human respiratory system and label – pharynx, trachea, lungs, diaphragm and alveolar sac on it.
____________ is necessary for the respiration in plant.
Sometimes we get painful cramps in our leg muscles after running for a long time due to the accumulation of:
Which of the following statement(s) is (are) true about respiration?
- During inhalation, ribs move inward and the diaphragm is raised
- In the alveoli, exchange of gases takes place i.e., oxygen from alveolar air diffuses into blood and carbon dioxide from the blood into the alveolar air
- Haemoglobin has a greater affinity for carbon dioxide than oxygen
- Alveoli increase surface area for the exchange of gases
During the process of exhalation, the ribs move ______.
Match List I with List II:
| List I | List II |
| A. Oxidative decarboxylation | I. Citrate synthase |
| B. Glycolysis | II. Pyruvate dehydrogenase |
| C. Oxidative phosphorylation | III. Electron transport sytem |
| D. Tricarboxylic acid cycle | IV. EMP pathway |
Choose the correct answer from the options given below:
