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Question

Match the sites in list I with the processes in list II and choose the correct combination from  the options.
 List I  List II
 A Grana of chloroplast 1 Krebs cycle
 B Stroma of chloroplast 2 Light reaction
 C Cytoplasm 3 Dark reaction
 D Mitochondrial matrix 4 Glycolysis


A
A - 4, B - 3, C - 2, D - 1
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B
A - 1, B - 2, C - 4, D - 3
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C
A - 2, B - 3, C - 4, D - 1
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D
A - 3, B - 4, C - 1, D - 2
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Solution

The correct option is C A - 2, B - 3, C - 4, D - 1
Light is absorbed and the energy is used to drive electrons from water to generate NADPH and to drive protons across a membrane. These protons return through ATP synthase to make ATP. It takes place in the grana of chloroplast.
Dark reactions make use of these organic energy molecules (ATP and NADPH). This reaction cycle is also called Calvin Benison Cycle, and it occurs in the stroma. ATP provides the energy, while NADPH provides the electrons required to fix the $$CO_2$$ (carbon dioxide) into carbohydrates. It takes place in stroma of chloroplast.
Glycolysis is the metabolic pathway that converts glucose, into pyruvate.
The free energy released in this process is used to form the high-energy compounds ATP and NADH. Glycolysis occurs in most organisms in the cytosol of the cell. 
The Krebs cycle (citric acid cycle) is a part of cellular respiration. Named after Hans Krebs, it is a series of chemical reactions used by all aerobic organisms to generate energy. Its importance to many biochemical pathways suggests that it was one of the earliest parts of cellular metabolism to evolve. This occurs in the mitochondrial matrix.

Biology

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