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9. all of the following molecules contain stored energy except for: * o…

Question

  1. all of the following molecules contain stored energy except for: *

options: nadp+, glucose, nadph, atp

  1. which of the following organisms are capable of alcoholic fermentation? *

options: plants, animals, bacteria, humans

  1. which of the following statements is true about the light - dependent reactions?

options: atp and nadph are built, atp and nadph are broken down, c6h12o6 is produced, co2 bonds to other organic molecules

Explanation:

Question 9
Brief Explanations
  • Glucose is a carbohydrate that stores chemical energy.
  • NADPH is a reduced coenzyme that carries energy - rich electrons (stores energy).
  • ATP (adenosine triphosphate) is the energy currency of the cell, storing energy in its phosphate bonds.
  • NADP⁺ is the oxidized form of NADPH and does not store energy in the same way as the others; it is an electron acceptor rather than an energy - storing molecule.
Brief Explanations
  • Plants mainly perform aerobic respiration, and some plant cells (like in anaerobic conditions) can do fermentation, but alcoholic fermentation is not the main or typical fermentation for most plants.
  • Animals (including humans) perform lactic acid fermentation, not alcoholic fermentation.
  • Some bacteria (e.g., yeast is a fungus, but some bacteria) are capable of alcoholic fermentation. Yeast (a fungus) is well - known for alcoholic fermentation, and there are also bacteria that can carry out this process. Among the given options, bacteria are the most likely to be capable of alcoholic fermentation.
Brief Explanations
  • In light - dependent reactions of photosynthesis, light energy is used to split water, and the energy is used to generate ATP (through photophosphorylation) and reduce NADP⁺ to NADPH. So ATP and NADPH are built (synthesized) in light - dependent reactions.
  • ATP and NADPH are used (broken down) in the light - independent (Calvin cycle) reactions, not the light - dependent ones.
  • \(C_6H_{12}O_6\) (glucose) is produced in the light - independent (Calvin cycle) reactions.
  • \(CO_2\) fixation (binding to organic molecules) occurs in the light - independent reactions.

Answer:

A. NADP⁺

Question 10