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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.
Name the type of respiration in which the end products are:
C2H5OH and CO2
Give one example where such a respiration can occur.
Name the type of respiration in which the end product is:
Lactic acid
Give one example where such a respiration can occur.
What is meant by aquatic animals?
Explain how, the air we breathe in gets cleaned while passing through the nasal passage.
Internal respiration may be defined as ______.
During marathon, we sometimes get painful contractions of leg muscles due to the accumulation of one of the following in leg muscles. This is ______.
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?
| An organism X having breathing organs A lives on land. When organism X goes underwater, it cannot survive for a long time unless carrying an oxygen cylinder. On the other hand, the organism Y having breathing organs B always lives in water and if taken out of the water, it dies after a short while. A third organism Z having breathing organs C and D which lives on the banks of ponds, lakes, and rivers can survive on land as well as in water equally well. |
- What could organism X be? Name the breathing organs A.
- What could organism Y be? Name the breathing organs B.
- What could organism Z be? Name the breathing organs C and D.
- Out of X, Y, and Z, which organism is (i) amphibian, (ii) aquatic, and (iii) terrestrial?
Answer the following in detail.
Explain the process of Cellular Respiration.
Name the body structure concerned with the given functional activity:
Transports oxygen to the body cells.
State one function of the following:
Pleural fluid
Rewrite the following statement by selecting the correct option.
During respiration, ____________ gas is given out.
Define respiration.
Air that enters through the nose passes into this tube.
The partial pressure of oxygen of blood in pulmonary capillaries is i ______ mrnHg while in alveolar air it is ii ______ mmHg.
With the reference to four gases CO2, CO, Cl2 and O2, which one of the options in the table is correct?
The oxygen dissociation curve is a sigmoid curve and it shifts towards the right due to ______.
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:
