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प्रश्न
Define respiration.
उत्तर
Respiration: It is a process of release of energy from food substances such as glucose and fats under the control of enzymes, to carry out life processes, by the living organisms.
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संबंधित प्रश्न
State whether the statement is true or false:
Aquatic animals breathe at a slower rate than the terrestrial animals.
Cellular respiration takes place in
(a) Lysosome
(b) Chlorophyll
(c) Mitochondria
(d) Ribosome
The breakdown of pyruvate to give carbon dioxide, water, and energy takes place in ______.
How are the alveoli designed to maximise the exchange of gases?
Explain why, when air is taken in and let out during breathing, the lungs always contain a residual volume of air.
"Respiration is a vital function of the body". Justify this statements.
What type of repiration takes place in yeast?
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:
In cockroaches, air enters the body through:
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?
What is the name of tissues which transport:
water and minerals in a plant?
Veins and arteries carry blood. Which of these carry blood away from the heart?
Veins and arteries carry blood. Which of these carry blood back to the heart?
Tick the most appropriate answer.
The products of respiration are :
Differentiate between
External respiration and Internal respiration
Choose the odd one out in the following groups of four items each:
Trachea, Bronchus, Alveolus, Diaphragm
Choose the odd one out in the following groups of four items each:
Hairy, Moist, Nostril, Vocal cord
Name the body structure concerned with the given functional activity:
Prevents food from entering the trachea during swallowing.
Match the items in Column I with the ones most appropriate in Column II. Rewrite the matching pairs.
|
Column I |
Column II |
|
(a) Alveoli |
(i) where aerobic respiration takes place |
|
(b) Bronchioles |
(ii) lined with hair |
|
(c) Nasal Chamber |
(iii) diffusion of gases |
|
(d) Bronchi |
(iv) small air tubes |
|
(v) an inverted Y shaped tube |
|
|
(vi) a common passage for food and air |
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 |
Complete the analogy.
Transport of CO2 by plasma : 7% :: Transport of CO2 by bicarbonate ions: ____________.
What is the ppCO2 in alveolar air?
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
Yeast is used in wine and beer industries because it respires
Mark the following statement as True or False. Correct the false statement.
Exhaled air has more percentage of CO2 than inhaled air
The oxygen dissociation curve is a sigmoid curve and it shifts towards the right due to ______.
