Tag Archives: cell biology

Branches of Biology Depict Its Essence in Diversities!

Branches of Biology Depict Its Essence in Diversities!!


Rational and Earnest Thoughts from an Earnest Scientific Mind for All the Readers with the Same Mind – Aditya Sardana aka Adidarwinian –


Science is the study of the Facts; Facts mean the Pure Truths.

Biology is a Complete and Pure Science; Biology is the Pure Truth.


Science studies and describes facts and the facts mean all those things that are pure truths. Biology is a complete science, and therefore, it automatically becomes a pure truth.


As I am a hard-core biologist, I will before answering the question “What is Biology”, like to clarify that Biology is in itself a complete scientific platform on which are based a multitude of Applied Biological Sciences such as Biotechnology, Bioinformatics, Bioengineering, Medicine, Physiotherapy, and plenty of others.

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A Biological Marvel Unleashed

A Biological Marvel Unleashed

A Biological Marvel - Photosynthetic Sea Slug - adidarwinian
A Biological Marvel – Photosynthetic Sea Slug

Note the bright green hue in the photograph.

This Sea Slug is a Biological Marvel — It is both an Animal and a Plant!!

“Elysia chlorotica can make energy containing molecules without having to eat anything.”

“This is the first time that multicellular animals have been able to produce chlorophyll“.

Elysia chlorotica is not an ordinary sea slug (a mollusc). Elysia chlorotica is a photosynthetic sea animal. Like plants, it is capable of converting sunlight into energy.

The photosynthetic ability of Elysia chlorotica is the result of incorporation of algal (Vaucheria litorea) chloroplasts (organelles found in plant cells in which photosynthesis occurs) and chlorophyll producing genes into its molluscan cells. Vaucheria litorea belongs to the yellow-green algae of the class  Xanthophyceae.

These slugs initially got the chlorophyll producing genes from the algae that they had eaten. Present generations of slugs have received these genes from their parent generations, and they are passing them to their daughter generations.

Elysia chlorotica gets its chlorophyll-making genes through genetic inheritance, but still is unable to carry out photosynthesis until it consumes adequate quantity of algae so as to receive necessary chloroplasts, which it is unable to produce by itself.

Photosynthetic Sea Slug - Elysia chlorotica - adidarwinian