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Carotenes protect plants from...

Carotenes protect plants from

A

Photooxidation

B

Desiccation

C

Phtorespiration

D

Photosynthesis.

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Carotenes**: Carotenes are photosynthetic pigments found in green plants. They play a crucial role in the light-harvesting process during photosynthesis. The most common types of carotenes include beta-carotene and lutein. 2. **Function of Carotenes**: Carotenes are involved in protecting chlorophyll, the main photosynthetic pigment, from damage. They absorb light energy and help in the process of photosynthesis, but their protective role is particularly important. 3. **Protection Against Photo-Oxidation**: One of the main threats to chlorophyll is photo-oxidation, which is the damage caused by ultraviolet (UV) rays from the sun. Carotenes help to prevent this damage by quenching the excess energy that could otherwise harm chlorophyll. 4. **Analyzing the Options**: - **Photo-Oxidation**: This is the correct answer because carotenes protect chlorophyll from this type of damage. - **Desiccation**: This refers to the drying out of plant tissues, which is not related to the function of carotenes. - **Photo-Respiration**: This is a metabolic process in plants and does not pertain to the protective role of carotenes. - **Photosynthesis**: While carotenes are involved in photosynthesis, they do not directly protect against it; instead, they protect chlorophyll from damage during this process. 5. **Conclusion**: Based on the analysis, the correct answer to the question "Carotenes protect plants from" is **photo-oxidation**. **Final Answer**: A) Photo-Oxidation ---
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