# What wavelength does chlorophyll a absorb?

## What wavelength does chlorophyll a absorb?

All photosynthetic organisms have chlorophyll a which absorbs violet-blue and reddish orange-red wavelengths. Chlorophyll a reflects green and yellow-green wavelengths. Accessory photosynthetic pigments, including chlorophyll b and beta-carotene, absorb energy that chlorophyll a does not absorb.

## Which wavelength of light is best absorbed by the chlorophyll extract?

As shown in detail in the absorption spectra, chlorophyll absorbs light in the red (long wavelength) and the blue (short wavelength) regions of the visible light spectrum. Green light is not absorbed but reflected, making the plant appear green.

What wavelength corresponds to the peak absorbance for chlorophyll a?

It shows maximum absorbance of light of wavelength 430-470 nm corresponding to blue light and 660-670 nm corresponding to red light. These two wavelengths trigger high rate photosynthesis by chlorophyll a.

Why is the action spectrum for photosynthesis similar to the absorption spectrum of chlorophyll?

The similarity of the action spectrum of photosynthesis and the absorption spectrum of chlorophyll tells us that chlorophylls are the most important pigments in the process. The energy absorbed by these “antenna pigments” is passed to chlorophyll a where it drives the light reactions of photosynthesis.

### What is the absorption spectrum of chlorophyll a?

The absorption spectrum of chlorophylls includes wavelengths of blue and orange-red light, as is indicated by their peaks around 450-475 nm and around 650-675 nm. As a note, chlorophyll a absorbs slightly different wavelengths than chlorophyll b.

### What is the primary absorption spectrum for chlorophyll a?

What happens when chlorophyll is struck by sunlight?

What happens when chlorophyll is struck by sunlight? The electrons in chlorophyll molecule become energized. They can accept electrons and transfer most of their energy to another molecule. Why are electron carriers needed for transporting electrons from one part of the chloroplast to another?

Can you determine the wavelength at which chlorophyll a so the maximum absorption?

Chlorophyll a shows maximum absorption of light with wavelengths of 430-470 nm (blue) and 660-670 nm (red). Red light relates to the long wavelength and blue light compares to the short wavelength of the obvious light range. The pace of photosynthesis is high in these two districts.