Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 38m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 53m
7. Gases3h 49m
8. Thermochemistry2h 37m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 36m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

6. Chemical Quantities & Aqueous Reactions

Redox Reactions

General Chemistry

6. Chemical Quantities & Aqueous Reactions

Redox Reactions

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Multiple Choice

How many photons are required to fully reduce one molecule of NADP+ to NADPH in photosynthesis?

1 photon

4 photons

2 photons

6 photons

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Verified step by step guidance

Understand the role of NADP+ in photosynthesis: NADP+ is reduced to NADPH during the light-dependent reactions of photosynthesis, which involves the transfer of electrons.

Recognize that the reduction of NADP+ to NADPH requires the input of energy, which is provided by photons absorbed by chlorophyll in the photosystems.

Recall that photosynthesis involves two main photosystems: Photosystem II (PSII) and Photosystem I (PSI). Each photosystem absorbs photons to energize electrons.

In Photosystem II, photons are absorbed to split water molecules, releasing electrons, which are then transferred through the electron transport chain to Photosystem I.

In Photosystem I, additional photons are absorbed to further energize the electrons, which are ultimately used to reduce NADP+ to NADPH. This process requires a total of two photons, one for each photosystem, to fully reduce one molecule of NADP+ to NADPH.