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timurjin [86]
3 years ago
14

Describe the events that happen during the following phases of photosynthesis:

Biology
1 answer:
jarptica [38.1K]3 years ago
7 0

Answer:

Photosynthesis consist of two types of reaction 1 light dependent reaction 2 light independent reaction or dark reaction.

Explanation:

                        light dependent reaction

light dependent reaction or light reaction occur in the thylakoid of granum of chloroplast.During light reaction light energy is absorbed by various pigments of the photosystem and is finally converted into chemical energy.

  During light reaction water is split in presence of sunlight to form H+ and OH- ions.The OH- ions releases electron.The released electron is then transported through various electron carriers resulting in the formation of ATP molecule by cyclic photo phosphorylation and NADPH by noncyclic photophosphorylation.

                          Light independent reaction

Light independent reaction or dark reaction occur in the stroma of chloroplast.The ATP and NADPH that is formed during light reaction is used as 3:2 ratio for per molecule of glucose production.

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Answer:

similarity

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differences

                monomer/glucose     glycosidic bond    branching

1.starch              α glucose          1-4 and 1-6               branch and unbranced

  amylose                                       1-4                          unbranched

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2. dextran          α glucose          1-6                           branched

3. cellulose        β glucose           1-4                          unbranched, linear        

4. glycogen       α glucose           1-4 and 1-6              branched (shorter

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Explanation:

Starch: Consists of both branched amylopectin and unbranched amylose

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