In this article we will discuss about the translation of amino acid to tRNA in cytoplasm. (i) Activation of Amino acids: Amino acids must be necessarily activated before their involvement in peptide synthesis (Fig. 4-10). The process is accomplished by the binding of an amino acid to ATP enzymatically and its consequent transference to tRNA. (ii) Transfer of amino acid [...]
In this article we will discuss about:- 1. Types of Plastids in Cell 2. Structure of Chloroplastid 3. Origin 4. Function. Types of Plastids in Cell: Plastids may be coloured or colourless and are of three types. The leucoplasts are the colourless plastids principally serving the purpose of storage. On the basis of nature of storage compound, leucoplastids are amyloplasts [...]
Quick Notes on Endoplasmic Reticulum! Structure of Endoplasmic Reticulum in Cell: Structurally the endoplasmic reticulum (ER) consists of cisternae, tubules and vesicles (Fig. 2.42). The cisternae are broad, flat, membrane-bound spaces arranged parallel to each other to form lamellae, which are connected with each other. The tubules are 50-1OOA in diameter. The vesicles or sacs are membrane- bound, isolated globose [...]