Absorption spectrum of 'chl a' shows maximum absorption in ____ and ____ regions of light

Options

A. blue and green
B. blue and red
C. red and green
D. red and far red

Explanation

To answer the question regarding the absorption spectrum of chlorophyll A, follow these steps:

1. **Understand the Concept of Absorption Spectrum**: The absorption spectrum refers to the range of wavelengths of light that a pigment can absorb. For chlorophyll A, this spectrum is crucial for photosynthesis as it determines which wavelengths of light can be utilized for energy.

2. **Identify the Types of Light**: Light is a form of electromagnetic radiation, and the visible spectrum is the part that can be seen by the human eye. The visible spectrum ranges from approximately 400 nanometers (nm) to 700 nm.

3. **Know the Main Pigments**: Chlorophyll A and B are the primary pigments involved in photosynthesis in higher plants. While both pigments absorb light, chlorophyll A is particularly important for the process.

4. **Determine the Wavelengths for Chlorophyll A**: Research indicates that chlorophyll A has maximum absorption in specific regions of the visible spectrum. It predominantly absorbs light in the blue (around 430-450 nm) and red (around 640-680 nm) regions.

5. **Fill in the Blanks**: Based on the information gathered, the absorption spectrum of chlorophyll A shows maximum absorption in the blue and red regions of light.

**Final Answer**: The absorption spectrum of chlorophyll A shows maximum absorption in the blue and red regions of light.

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