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(I) Fill in the Blanks in the Following Equations of Two Chemical Reactions: (A) − − − + 12 H 2 O L I G H T E N E R G Y −−−−−−−→ C 6 H 12

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Question

(i) Fill in the blanks in the following equations of two chemical reactions:

(a) \[\ce{---+12H2O->[Light energy]C6H12O6 + --- + ----}\]

(b) \[\ce{--- 6O2->[Chlorophyll] 6 --- +6 ---- + Energy}\]

(ii) Name the two processes represented by the above two reactions. 

(iii) State any two differences in these processes other than those already indicated in the reactions. 

(iv) Which one of these two reactions is the supporter of all life on earth? 

Answer in Brief
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Solution

(a) \[\ce{6CO2 + 12H2O ->[Sunlight][Chlorophyll] C6H12O6 + 6O2 + 6H2O}\]

(b) \[\ce {C6H12O6 + 6O2 -> 6CO2 + 6H2O} + Energy\]

(ii) Photosynthesis and respiration. 

(iii) Difference between Photosynthesis and respiration : 

Photosynthesis  Respiration 
(a) It is an anabolic process . (a) It is a catabolic process .
(b) It results in a gain in dry mass.  (b) It results in a loss in dry mass .

(iv) Photosynthesis 

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Chapter 6: Photosynthesis - Exercise 2 [Page 75]

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Frank Biology Part 2 [English] Class 10 ICSE
Chapter 6 Photosynthesis
Exercise 2 | Q 9 | Page 75

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