Class 9th Biology Chapter 7 Bioenergetics

biology 9th notes Chapter No 7

1. From which bonds of ATP molecule energy is ‘taken?


2. Dark reactions were discovered by:


3. ATP molecule was discovered in


4. Redox reactions involve:


5. _________ is the synthesis of glucose from carbon dioxide and water in the presence of sunlight and chlorophyll.


6. Process of glycolysis is found in


7. During oxidation ____________ happens.


8. Light reactions take place in:


9. In dark reactions 3-carbon compounds are reduced to form:


10. In which component of the leaf cells, chlorophyll is present?


11. Number of phosphate groups in ATP molecule:


12. Electron are the source of energy when:


13. ATP was discovered by:


14. Oxygen takes part in aerobic respiration in:


15. Nitrogenous base of ATP molecule is:


16. Chlorophyll pigment absorbs maximum light in wavelengths of:


17. Adenosine can exist in the following form:


18. In which step of respiration carbon dioxide is produced?


19. In which of the following steps of respiration, CO2 is produced?


20. One mole of ATP release energy:


21. In which of the following metabolic processes, oxidation as well as reduction If molecules occur?


22. How many molecules of CO2 are produced when krebs cycle operates once?


23. How much light is absorbed falling on the leaf surface?


24. CO2 gets absorbed in the thin layer of water surrounding:


25. How many molecules of CO2 are produced when Krebs cycle operates once?


26. Energy is required for the following life processes:


27. How much ATP molecules are formed during Cellular Respiration?


28. Ribose is a:


29. In which part of chloroplast, light reactions of photosynthesis take place


30. Hydrogen atom contains number of protons:


31. In cell aerobic respiration sites are:


32. Adenine is a:


33. _________ transfers energy between metabolic processes.


34. ATP is generated by:


35. Dark reactions are also called:


36. During reduction _____________ happens.


37. Aerobic respiration occurs in:


38. __________ is called cell’s energy currency:    


39. ___________ is the movements of water from a dilute solution to the concentrated one, through a membrane.


40. ATP is a:


41. Calvin was awarded Nobel prize in:


42. In which process oxygen is released as a bi product?


43. Each ATP molecules has the number of sub units:


44. Chlorophylls absorb type of light basically


45. By Product of Photosynthesis is:


46. ATP was proposed to be the main energy transfer molecule in the cell by:


47. Redox reaction involve:


48. Necessary for aerobic respiration:


49. Photosynthesis occurs in _______ phases.


50. _______ is a coenzyme.


51. Each ATP molecule do not contain:


Short Questions

1. Can all organisms do the process of photosynthesis?
2. carried out due to ATP?
3. Define aerobic respiration.
4. Define anaerobes.
5. Define anaerobic respiration (Fermentation).
6. Define bioenergetics.
7. Define Electron Transport Chain (ETC).
8. Define light-dependent reactions, or light reactions.
9. Define Oxidation and Reduction reactions.
10. Define oxidation and reduction with reference to living organisms.
11. Define photolysis. 
12. Define photosynthesis.
13. Define photosystems.
14. Define Pigments. What are its types?
15. Define redox reactions. Why are they important?
16. Describe the process of osmosis.
17. Differentiate between aerobic and anaerobic respiration
18. Differentiate between oxidation and reduction.
19. Differentiate between photosynthesis and respiration.
20. Enlist the functions which are performed
21. How much energy is released from one mole of ATP?
22. How much energy is released when one phosphate bond breaks in an ATP molecule?
23. How much is the leaf surface covered by stomata?
24. How the electron can be energy carrier?
25. NADPH stands for what?
26. What are accessary pigments?
27. What are limiting factors?
28. What are redox reactions?
29. What are the conversion equations for ATP to AMP?
30. What are the locations for the occurrence of light and dark reactions?
31. What are the raw materials for photosynthesis?
32. What are the subunits of ATP?
33. What do you know about Hans Krebs?
34. What do you mean by Z-scheme?
35. What do you understand by ATP?
36. What events take place during dark reactions?
37. What is (NAD+)?
38. What is acetyl Co-A?
39. What is Alcoholic fermentation?
40. What is ATP?
41. What is Calvin cycle?
42. What is cellular respiration?
43. What is glycolysis?
44. What is Krebs cycle?
45. What is Lactic acid Fermentation?
46. What is Light Independent Reaction (Dark Reaction)?
47. What is photolysis?
48. What is respiration or cellular respiration?
49. What is the effect of concentration of CO2 on photosynthesis?
50. What is the major energy currency in all living cells?
51. When and what discovered by Karl Lohmann?
52. Who discovered ATP and who proposed it as energy-transfer molecule in the living cell?
53. Why it is said that all life depends on photosynthesis?
54. Write down name of two compounds produced during respiration process. 
55. Write down the simple general equation for photosynthesis.
56. Write down the subunits of ATP.
57. Write the abbreviation of ATP, ADP and AMP.
58. Write the general equation for photosynthesis.


Long Questions

1. ATP is the energy currency of cell. Explain.
2. Briefly explain oxidation and reduction reactions.
3. Define anaerobic respiration and explain its types.
4. Define Bio-energetics and discuss energy transformations in living organisms.
5. Define limiting factor. Explain some of the limiting factors in photosynthesis.
6. Define photosynthesis, write its equation and describe that water and carbon dioxide are raw materials in photosynthesis.
7. Define respiration. Also discuss aerobic and anaerobic respiration.
8. Describe differences between photosynthesis and respiration.
9. Describe mechanism of photosynthesis in detail.
10. Describe mechanism of respiration.
11. Describe the role of light and chlorophyll in plants.
12. Describe two types of anaerobic respiration.
13. Differentiate between aerobic and anaerobic respiration.
14. Discuss role of chlorophyll and light in photosynthesis.
15. Discuss the importance of fermentation in detail.
16. Discuss the mechanism of respiration.
17. Draw a comparison of aerobic and anaerobic respiration.
18. Explain dark reaction of photosynthesis.
19. Explain molecular structure of ATP.
20. Explain the summary of light reaction.
21. How will you compare respiration and photosynthesis?
22. How would you define bioenergetics while relating it to the oxidation reduction reactions in living systems?
23. Interpret that ATP is the chief energy currency of all cells.
24. Outline the mechanism of respiration while defining glycolysis, Krebs cycle and electron transport chain.
25. Outline the processes involved in photosynthesis?
26. State how the varying light intensity carbon dioxide concentration and temperature affect the rate of photosynthesis?
27. What is photosynthesis? Explain intake of water and carbon dioxide.
28. What is the role of chlorophyll and light in photosynthesis?
29. Write a detailed note on light and dark reactions of photosynthesis.
30. Write a note on ATP.
31. Write a note on Calvin cycle. 
32. Write a note on energy budget of respiration.
33. Write a note on limiting factors of photosynthesis.
34. Write a note on Oxidation-Reduction reactions.
35. Write the importance of fermentation (anaerobic respiration).

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