Table of contents

1. A Review of General Chemistry5h 5m
2. Molecular Representations1h 14m
3. Acids and Bases2h 46m
4. Alkanes and Cycloalkanes4h 17m
5. Chirality3h 39m
6. Thermodynamics and Kinetics1h 22m
7. Substitution Reactions1h 48m
8. Elimination Reactions2h 30m
9. Alkenes and Alkynes2h 9m
10. Addition Reactions3h 19m
11. Radical Reactions1h 58m
12. Alcohols, Ethers, Epoxides and Thiols2h 42m
13. Alcohols and Carbonyl Compounds2h 17m
14. Synthetic Techniques1h 26m
15. Analytical Techniques:IR, NMR, Mass Spect7h 3m
16. Conjugated Systems6h 13m
17. Ultraviolet Spectroscopy51m
18. Aromaticity2h 34m
19. Reactions of Aromatics: EAS and Beyond5h 1m
20. Phenols55m
21. Aldehydes and Ketones: Nucleophilic Addition4h 56m
22. Carboxylic Acid Derivatives: NAS2h 51m
23. The Chemistry of Thioesters, Phophate Ester and Phosphate Anhydrides1h 10m
24. Enolate Chemistry: Reactions at the Alpha-Carbon1h 53m
25. Condensation Chemistry2h 9m
26. Amines1h 43m
27. Heterocycles2h 0m
28. Carbohydrates5h 53m
29. Amino Acids4h 20m
30. Peptides and Proteins2h 42m
31. Catalysis in Organic Reactions1h 30m
32. Lipids 2h 50m
33. The Organic Chemistry of Metabolic Pathways2h 52m
34. Nucleic Acids1h 32m
35. Transition Metals6h 14m
36. Synthetic Polymers1h 49m

1. A Review of General Chemistry

Intro to Organic Chemistry

Organic Chemistry

1. A Review of General Chemistry

Intro to Organic Chemistry

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Multiple Choice

In CAM plants, which adaptation helps reduce water loss while still allowing carbon dioxide capture?

Opening stomata during the day

Increasing transpiration rates

Using C4 photosynthesis

Opening stomata at night

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Verified step by step guidance

Understand the basic function of stomata: Stomata are small openings on the surface of leaves that allow for gas exchange. They play a crucial role in photosynthesis by allowing carbon dioxide (CO2) to enter the leaf while releasing oxygen (O2).

Recognize the challenge faced by plants in arid environments: In hot and dry conditions, opening stomata during the day can lead to excessive water loss through transpiration, which is the process of water vapor leaving the plant through the stomata.

Learn about CAM (Crassulacean Acid Metabolism) plants: CAM plants have adapted to arid environments by altering the timing of their stomatal opening. This adaptation helps them conserve water while still capturing CO2 for photosynthesis.

Identify the key adaptation of CAM plants: Unlike most plants that open their stomata during the day, CAM plants open their stomata at night. This allows them to capture CO2 when temperatures are cooler and humidity is higher, reducing water loss.

Understand the process of CO2 storage in CAM plants: At night, CAM plants convert the captured CO2 into an organic acid, which is stored in vacuoles. During the day, when the stomata are closed, the stored CO2 is released from the acid and used in the Calvin cycle to produce sugars.