Chlorophyll shows an outburst of flourescence during the first few moments of illumination. This effect is called

Options

A. Emerson's effect
B. Kutusky effect
C. Hamburger effect
D. Hill effect

Answer

**Step-by-Step Solution:**

1. **Understanding Chlorophyll and Fluorescence:**
- Chlorophyll is the pigment responsible for photosynthesis in plants. It absorbs light energy, which excites its electrons and allows the process of photosynthesis to occur.
- Fluorescence is the process where a substance absorbs light and then re-emits it. When chlorophyll is illuminated, it absorbs energy and then releases some of that energy in the form of light.

2. **Identifying the Effect:**
- The question asks about the specific phenomenon where chlorophyll shows an outburst of fluorescence during the initial moments of illumination.
- This phenomenon is characterized by the immediate release of light energy after chlorophyll absorbs it.

3. **Historical Context:**
- The effect of chlorophyll showing fluorescence was studied by a scientist named Kutuzov in 1931. This specific observation is known as the Kutuzov effect.

4. **Eliminating Other Options:**
- The other options provided (Emerson effect, Hamburg effect, and Hill effect) are related to different aspects of photosynthesis or biological processes:
- **Emerson Effect:** Related to the enhancement of photosynthesis when two different wavelengths of light are used.
- **Hamburg Effect:** Related to cardiovascular systems in animals, not plants.
- **Hill Effect:** Related to the behavior of populations, not directly to chlorophyll or photosynthesis.

5. **Conclusion:**
- Based on the understanding of chlorophyll, fluorescence, and the historical context, the correct answer to the question is the **Kutuzov effect**.

**Final Answer:**
The effect is called the **Kutuzov effect**.

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