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प्रश्न
Define respiration.
उत्तर
Respiration: It is a process of release of energy from food substances such as glucose and fats under the control of enzymes, to carry out life processes, by the living organisms.
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संबंधित 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
How are oxygen and carbon dioxide transported in human beings?
How are the lungs designed in human beings to maximize the area for exchange of gases?
Which of the following is the correct statement regarding bile?
Which part of roots is involved in the exchange of respiratory gases?
Out of photosynthesis and respiration in plants, which process occurs:
(a) all the time?
(b) only at daytime?
Where in the lungs does gas exchange take place?
State whether the following statement is true or false:
during respiration, the plants take CO2 and release O2.
State whether the following statement is true or false:
Energy can be produced in cells without oxygen.
What are the major organs of respiratory system in man (or humans)?
During respiration, the exchange of gases takes place in:
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?
Out of xylem and phloem, which one carries materials upwards as well as downwards?
Tick the most appropriate answer.
The products of respiration are :
Name the body structure concerned with the given functional activity:
Prevents food from entering the trachea during swallowing.
Name the body structure concerned with the given functional activity:
Combines with the oxygen in the lungs.
List the organs of Human respiratory system.
Answer the following question.
How is O2 and CO2 transported in human beings?
term 'respiration' includes
____________ is necessary for the respiration in plant.
Name the substances whose build-up in the muscles during vigorous physical exercise may cause cramps?
Which of the following equations is the summary of photosynthesis?
How does aerobic respiration differ from anaerobic respiration?
Explain the three pathways of breakdown in living organisms.
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.
