Nucleus Structure and Function

Nucleus:- The nucleus is a double membrane-bound protoplasmic organelles which contain the genetic information for control cellular metabolism and transmission to the next offspring. The nucleus was first discovered in orchid root cells by Robert brown called it Areda. The study of the nucleus is called as Karyology. Flemming gave name chromatin. It is absent […]

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Microbodies – Structure, functions, and Types

Microbodies:- Microbodies are small single membrane-bound organelle. They are formed by ER. They were first observed by Rhodin.They Found in protozoa, fungi, plants, and liver and kidney cells. Microbodies are four types:- 1. Peroxisomes:- Peroxisomes help in detoxifying the alcohol in the liver cell. Contains amino acid oxidase, hydroxyl acid oxidase, peroxidase, catalase enzymes. Their […]

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Vacuole Structure Functions and Types

Vacuole:- Vacuole is discovered by Dujardin.  It is unit membrane-bound structure which is selectively permeable. Approx.90% of the volume of many plant cells is occupied by it. It Is surrounding membrane is known as Tonoplast (Greek- ton meaning ‘stretching’, ‘tension’, ‘tone’ Plastos ‘formed, molded’ ) and fluid is cell sap, cell sap contains water, sugar, […]

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Endoplasmic Reticulum Structure Functions and Types

Endoplasmic reticulum Endoplasmic means this organelle found in cytoplasm and reticulum means a type of network It was discovered and term coined by Porter Endoplasmic reticulum is often called system of membrane It occurs in all eukaryotic except mature erythrocytes. In muscles, endoplasmic reticulum is called sarcoplasmic reticulum. Resting and early embryonic cells contains least […]

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