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प्रश्न
Carbon dioxide enters into the leaves through tiny pores present on the surface of the leaf called _________.
(a) chlorophyll
(b) chloroplast
(c) stomata
(d) epidermis
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उत्तर
(c)
Carbon dioxide enters the leaves through tiny pores present on the surface of the leaf called stomata.
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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.
List the differences between aerobic and anaerobic respiration.
Describe the process of respiration in the following part of a plant:
Leaves
Explain how, the air we breathe in gets cleaned while passing through the nasal passage.
One of the following animals does not use tracheae as the respiratory organs. This animal is ______.
The breathing and respiration in woody stem of a plant takes place through ______.
Which of the following is most likely to have a much higher breathing rate?
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A, B and C are three living organisms. The organism A is a unicellullar fungus which can live without air. It is used in the commercial production of an organic compound P from molasses. The organism B is a unicellular animal which lives in water and feeds and moves by using pseudopodia. It breathes through an organelle Q. The organism C is a tiny animal which acts as a carrier of malarial parasite. It breathes and respires through a kind of tiny holes R and air-tubes S in its body. |
- What are organisms (i) A (ii) B, and (iii) C?
- Name (i) P (ii) Q (iii) R, and (iv) S.
- Which organism/organisms undergo aerobic respiration?
- Which organism/organisms undergo anaerobic respiration?
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Consider the following chemical reactions which take place in different organisms/tissues under various conditions:
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- Name one organism which respires according to equation (i) above.
- Name one organism which respires according to equation (ii) above.
- When and where does respiration represented by equation (iii) above take place?
- Which equation/equations represent aerobic respiration?
- Which equation/equations represent anaerobic respiration?
- Which of the above reactions produces the maximum amount of energy?
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 _____________.
How is the respiratory passage kept free of dust particles?
Given below is an overall chemical reaction of a certain process:
C6H12O6→LacticAcid+2ATP+Heat enengy
Name one tissue in which this reaction occur.
With regard to the respiratory system and the process of respiration in man, answer the following question:
What is meant by :
- Residual air and
- Dead air space
A gas is released during photosynthesis. Name the gas and also state the way by which the gas is evolved.
Define respiration.
Respiration refers to ____________.
____________ is the maximum amount of air that the lungs can hold after a maximum forceful inspiration.
What percent of oxygen is transported in a dissolved state by the plasma?
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
The oxygen dissociation curve is a sigmoid curve and it shifts towards the right due to ______.
