Chlorophyll a Vs B Colorby Joseph Bienaimé Caventou And Pierre Joseph Pelletier

Chlorophyll a and chlorophyll b are two types of pigment molecules that are found in plants. Chlorophyll a is the primary pigment molecule involved in photosynthesis, while chlorophyll b is a accessory pigment molecule. Both chlorophyll a and b absorb light in the blue-green wavelength region of the electromagnetic spectrum.

However, they differ in their absorption spectra, with chlorophyll a absorbing more blue light and chlorophyll b absorbing more red light. As a result, chlorophyll a appears green to our eyes, while chlorophyll b appears yellow-green.

Chlorophyll a and b are the two most common types of chlorophyll found in plants. Both are essential for photosynthesis, but they have some differences. Chlorophyll a is the primary pigment for photosynthesis in most plants, while chlorophyll b helps absorb light in a different wavelength range.

The ratio of these two pigments can vary depending on the plant species. So what does this mean for the color of plants? In general, chlorophyll a will give plants a green hue, while chlorophyll b will add a yellow-green or blue-green tint.

However, there are many other factors that affect plant coloration, so don’t rely on this rule too much!

Who Discovered Chlorophyll

Chlorophyll was first discovered in 1817 by Johann Reinhold Forster, a German naturalist. He observed that when leaves are placed in water, they release a green pigment that colors the water. This pigment was later named chlorophyll by French chemist Joseph-Louis Gay-Lussac.

In 1883, Dutch scientist Melchior Neumann showed that chlorophyll is essential for photosynthesis, the process plants use to convert sunlight into energy. In 1924, American biochemist Roger Adams isolated pure chlorophyll from plant leaves. Today, we know that chlorophyll is vital for all plants and algae to carry out photosynthesis.

What Did Pelletier And Caventou Discover?

Pelletier and Caventou were two French chemists who, in 1817, discovered that chlorophyll was the main pigment responsible for photosynthesis in plants. Chlorophyll is a green pigment that absorbs light in the visible spectrum, which plants use to convert sunlight into chemical energy that they can use for growth and development.

What Did Pelletier Discover?

Pelletier discovered that the plant called “cinchona” could be used to treat malaria.

Who Discovered Chlorophyll 1817?

Chlorophyll was first isolated in 1817 by French chemist Pierre Joseph Pelletier and his colleague, Swiss pharmacist Jean Baptiste Boussingault. They extracted it from green plants using a process of chloroform extraction and steam distillation. The word “chlorophyll” comes from the Greek words χλωρός (khlōros, meaning “green”) and φύλλον (phyllon, meaning “leaf”).

Who is Pelletier And Caventou?

In 1817, two French chemists by the names of Pelletier and Caventou discovered caffeine. These two men were working with plant material and came across a new alkaloid. They named this new discovery “theine”.

It wasn’t until 1821 that another chemist by the name of Runge gave it the name we know it by today, caffeine.


Chlorophyll a and chlorophyll b are two types of chlorophyll, the green pigment found in plants. Chlorophyll a is the most common form of chlorophyll, while chlorophyll b is less abundant. Both types of chlorophyll absorb light in the blue and red regions of the visible spectrum, but they differ in their absorption of green light.

Chlorophyll a absorbs more green light than chlorophyll b, which gives plants their characteristic green color. In addition to absorbing light for photosynthesis, chlorophyll also helps protect plants from damage by ultraviolet radiation.

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