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प्रश्न
Observe the figure carefully and answer the following questions.
- Which process is being tested in the activity?
- What is the result of the activity? Give reasons.
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उत्तर
- The release of carbon dioxide during exhalation is being tested in the given activity.
- The lime water in test tube ‘B’ turns milky but the water in test tube ‘A’ remains unchanged. It is because CO2 is present in the exhaled air and when it mixes with lime water in test tube ‘B’, the lime water turns milky.
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संबंधित प्रश्न
The mountaineers carry oxygen with them because ______.
Name the pores in a leaf through which respiratory exchange of gases takes place.
How are oxygen and carbon dioxide exchanged in our body during respiration?
Which of the following is most likely to have a much higher breathing rate?
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.
(a) What are organisms (i) A (ii) B, and (iii) C?
(b) Name (i) P (ii) Q (iii) R, and (iv) S.
(c) Which organism/organisms undergo aerobic respiration?
(d) Which organism/organisms undergo anaerobic respiration?
Consider the following chemical reactions which take place in different organisms/tissues under various conditions:
(i) Glucose → Respiration ">Ethanol + Carbon dioxide + Energy
(ii) Glucose→ Respiration ">Carbon dioxide + Water + Energy
(iii) Glucose → Respiration "> Lactic acid + Energy
(a) Name one organism which respires according to equation (i) above.
(b) Name one organism which respires according to equation (ii) above.
(c) When and where does respiration represented by equation (iii) above take place?
(d) Which equation/equations represent aerobic respiration?
(e) Which equation/equations represent anaerobic respiration?
(f) 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.
Alveoli and _____________.
Name the energy currency in the living organisms. When and where is it produced?
Breathing is a process that
- provides O2 to the body.
- breaks down food to release energy.
- helps the body to get rid of CO2.
- produces water in the cells.
Which of the following gives the correct combination of functions of breathing?
The oxygen dissociation curve is a sigmoid curve and it shifts towards the right due to ______.
