Advertisements
Advertisements
Question
The exchange of gases in the leaves takes place with the help of __________.
Solution
The exchange of gases in the leaves takes place with the help of stomata.
APPEARS IN
RELATED QUESTIONS
Cellular respiration takes place in
(a) Lysosome
(b) Chlorophyll
(c) Mitochondria
(d) Ribosome
What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration?
What would happen if all the green plants disappear from the earth?
Name the pores in a leaf through which respiratory exchange of gases takes place.
Define breathing. State the differences between breathing and respiration.
Explain how, the air we breathe in gets cleaned while passing through the nasal passage.
During the deficiency of oxygen in tissues of human beings, pyruvic acid is converted into lactic acid in:
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
The photosynthesis in a plant is not taking place during the day time if the plant is releasing:
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?
Veins and arteries carry blood. Which of these carry blood away from the heart?
In the lungs what substance is removed from the body?
State one function of the following:
Mitochondria
Define respiration.
Respiration refers to ____________.
____________ is the maximum amount of air that the lungs can hold after a maximum forceful inspiration.
term 'respiration' includes
The partial pressure of oxygen of blood in pulmonary capillaries is i ______ mrnHg while in alveolar air it is ii ______ mmHg.
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
