C. SHORT ANSWER TYPE
1. What happens to the energy liberated in respiration?
2. Why is it usually difficult to demonstrate respiration
in green plants ?
3. Explain why respiration is said to be the reverse of
photosynthesis.
4. How is the tilling of the soil useful for the crops
growing in it?
5. Write the full form of ATP and ADP.
6. Can cell respiration occur in any organism at
temperature of about 65°C ? Give reason.
Answers
Answer:
The energy liberated in respiration is stored in the form of ATP inside the cells. ... CO2 produced during respiration in plants gets utilized during photosynthesis and thus, there is no evolution of CO2. Therefore, it is difficult to demonstrate respiration in green plants as there is no evolution of CO2 during day time.
Explanation:
Answer:
1) The energy liberated during respiration is utilised for carrying out various life processes. Some of the energy liberated during the breakdown of the glucose molecule, is in the form of heat, but a large part of it is converted into chemical energy called Adenosine Triphosphate (ATP). Any activity inside the cell is carried out by the energy released by these ATP molecules.
2) Rate of respiration is often measured by the amount of carbon dioxide gas evolved during respiration. But at the same time this CO² is consumed by photosynthesis, making it difficult to demonstrate the process of respiration in green plants.
3) In respiration oxygen is involved, carbon dioxide is released and occurs all the time of day whereas in photosynthesis oxygen is released, carbon dioxide is involved and occurs in the presence of sunlight. The reactants in respiration are the products of photosynthesis. Therefore, spiration is said to be the reverse of photosynthesis.
4) 1) It breaks downs large pieces of soil into finer particles which helps in better soaking of water in soil and for planting seeds.
2) It brings up the nutrients present below the soil up so that the plants can get the necessary nutrients easily.
3) It also helps in the removal of weeds and undesirable roots.
5) ATP stands for Adenosine Tri-Phosphate whereas ADP stands for Adenosine Di-Phosphate.
6) No, the cell respiration is virtually impossible in any organism at a temperature of about 65 degree Celcius. The enzymes get more active as the temperature increases, but till it reaches 45 degree. ... But most of the enzymes are denatured at 65 degrees.
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