Certainly! Let's analyze each of the given options to identify which equation shows one way that a plant cell stores energy in an energy carrier molecule.
1. Option A: [tex]\( ADP + H^{+} \rightarrow ATP \)[/tex]
- ADP (Adenosine Diphosphate) is converted to ATP (Adenosine Triphosphate). This process typically involves the addition of a phosphate group (Pi), not merely a proton (H[tex]\(^+\)[/tex]). This reaction is part of the process known as phosphorylation and is associated with cellular respiration and photosynthesis, but it is not correct as written.
2. Option B: [tex]\( NADP^{+} + H^{+} \rightarrow NADPH \)[/tex]
- NADP[tex]\(^+\)[/tex] (Nicotinamide Adenine Dinucleotide Phosphate) is reduced to NADPH by accepting a proton (H[tex]\(^+\)[/tex]). NADPH is an essential energy carrier molecule in photosynthesis. This reaction stores energy in the form of high-energy electrons within NADPH.
3. Option C: [tex]\( NADP^{+} + P \rightarrow ATP \)[/tex]
- This reaction suggests that NADP[tex]\(^+\)[/tex] combines with a phosphate group (P) to form ATP. This is incorrect because NADP[tex]\(^+\)[/tex] does not directly form ATP; instead, ATP is formed from the phosphorylation of ADP.
4. Option D: [tex]\( ATP + NADPH \rightarrow ADP \)[/tex]
- This reaction implies the use of ATP and NADPH together to form ADP, which doesn't accurately describe the storage of energy. Instead, this reaction would represent the utilization of energy.
By analyzing these options, it is evident that:
Option B: [tex]\( NADP^{+} + H^{+} \rightarrow NADPH \)[/tex]
is the correct equation that shows one way a plant cell stores energy in an energy carrier molecule. Here, NADP[tex]\(^+\)[/tex] is reduced to NADPH, storing energy in high-energy electrons, essential for the Calvin cycle in photosynthesis.
