The substances that have an ability to absorb light at different specific wavelength area)Proteinsb)Enzymesc)Carbohydratesd)PigmentsCorrect answer is option 'D'. Can you explain this answer?

Question

Answer

Pigments

Answer

Pigment that have ability to absorb light at different specific wavelength.
eg. Chlorophyll

Answer

Pigment only absorbs the diff wavelengths of light

Answer

Pigments are 'molecules that absorb specific wavelengths (energies) of light and reflect all others.'

Answer

The Substances that Have an Ability to Absorb Light at Different Specific Wavelengths

Introduction
The substances that have an ability to absorb light at different specific wavelength areas are pigments. Pigments are molecules that are capable of absorbing certain wavelengths of light and reflecting or transmitting others. They play a crucial role in various biological processes, including photosynthesis, vision, and coloration.

Pigments
Pigments are natural or synthetic molecules that possess an extensive conjugated system of alternating single and double bonds. This conjugated system allows them to absorb and reflect specific wavelengths of light. The absorption of light by pigments occurs due to the excitation of electrons within the conjugated system.

Role of Pigments
Pigments have various roles in living organisms, including:

1. Photosynthesis: In plants, pigments such as chlorophyll absorb light energy during photosynthesis, converting it into chemical energy. Chlorophyll absorbs light primarily in the red and blue regions of the electromagnetic spectrum, while reflecting or transmitting green light, which gives plants their characteristic green color.

2. Vision: In the visual systems of animals, pigments called opsins are responsible for absorbing light and initiating the process of vision. Different types of opsins are sensitive to specific wavelengths of light, allowing animals to perceive colors.

3. Coloration: Pigments are responsible for the vibrant colors seen in various organisms, such as flowers, birds, and insects. These pigments absorb specific wavelengths of light, while reflecting or transmitting others, resulting in the perception of different colors.

Examples of Pigments
There are several types of pigments found in nature, including:

1. Chlorophyll: Chlorophyll is the primary pigment involved in photosynthesis. It has different forms, such as chlorophyll a and chlorophyll b, which absorb light in the red and blue regions of the spectrum.

2. Carotenoids: Carotenoids are pigments responsible for the yellow, orange, and red colors seen in fruits, vegetables, and flowers. They absorb light in the blue and green regions of the spectrum.

3. Melanin: Melanin is a pigment responsible for the coloration of skin, hair, and eyes in animals. It absorbs a broad range of wavelengths, including ultraviolet (UV) light, providing protection against harmful UV radiation.

Conclusion
Pigments are substances that have the ability to absorb light at specific wavelengths. They play crucial roles in biological processes such as photosynthesis, vision, and coloration. Understanding the properties and functions of pigments is essential in various scientific fields, including biochemistry, biology, and ecology.

Answer

Pigments are substances that have an ability to absorb light, at specific wavelengths. The chlorophyll a pigment to absorb lights of different wavelengths.

Answer

Option D

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