In this article we will discuss about:- 1. Meaning of Lysosomes in Cell 2. Structure of Lysosomes in Cell 3. Function. Meaning of Lysosomes in Cell: Lysosomes are ultra structural particles of the cell containing hydrolytic enzymes responsible for digestion. Though these are common in animal cell, but in plants these are found in the lower groups, such as euglenoids, [...]
The following points highlight the three main constituents of nucleus. The constituents are: 1. Nuclear Envelope 2. Nucleolus 3. Nucleoplasm. Constituent # 1. Nuclear Envelope: Under the electron microscope the nuclear envelope appears to consist of two membranes, the outer and the inner nuclear membranes, separated by a perinuclear space of 20 nm (Fig. 2.65). Each of the two membranes [...]
The following points highlight the two main types of organellar DNA in cell. The types are: 1. Chloroplast DNA (cp DNA) 2. Mitochondrial DNA (mt DNA). Organellar DNA: Type # 1. Chloroplast DNA (cp DNA): Each chloroplast contains 20-200 copies of a circular double stranded DNA molecule, which may also be linear as found in maize, cp DNA is characterized [...]