Advertisements
Advertisements
प्रश्न
Describe the process of respiration in the following part of a plant:
Leaves
उत्तर
The leaves of a plant have tiny pores called stomata. The oxygen from air diffuses into a leaf through stomata and reaches all the cells, where it is used in respiration. The carbon dioxide gas that is produced during respiration, diffuses out from the leaf into the air through the same stomata.
APPEARS IN
संबंधित प्रश्न
What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration?
The exchange of respiratory gases in the cells of plants occurs by the process of _______________
(a) Osmosis
(b) Diffusion
(c) Glycolysis
(d) exhalation
What would happen if all the green plants disappear from the earth?
Name the process by which plant parts like roots, stems, and leaves get oxygen required for respiration.
State whether the following statement is true or false:
during respiration, the plants take CO2 and release O2.
Fill in the following blank with suitable word:
The organs of respiration in man are the _____________.
Why do the walls of trachea not collapse when there is less air in it?
Which of the following increases in muscle cells when they are lacking in oxygen?
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 back to the heart?
Name the body structure concerned with the given functional activity:
Transports oxygen to the body cells.
Name the body structure concerned with the given functional activity:
Combines with the oxygen in the lungs.
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 |
State one function of the following:
Mitochondria
Rewrite the following statement by selecting the correct option.
During respiration, ____________ gas is given out.
____________ is the maximum amount of air that the lungs can hold after a maximum forceful inspiration.
With which of the following haemoglobin combines to form carboxyhaemoglobin?
Sometimes when we do heavy exercise, anaerobic respiration takes place in our muscle cells. What is produced during this process?
Yeast is used in wine and beer industries because it respires
Mark the following statement as True or False. Correct the false statement.
Insects have spiracles on the lower surface of the body.
