Question

Draw several non essential and essential structures of eukaryotes and explain their functions name?

Diagram the process of the lytic and lysogenic replication?

what are some non essential structures that can contribute to a microbes potential to cause disease?

Answer 1

1) Eukaryotic cell are defined as cells containing organised nucleus and membrane bound organelles .Most essential structure of it are a)Nucleus b) Mitochondria c)Chloroplast. Nonessential are: a) Golgi apparatus b ) Ribosomes c) Lysosome.

A) Nucleus - It is the main double membrane structure containing genetic information. Functions - It stores genetic information necessary for development and reproduction. Also contain information for protein synthesis and cellular functions.

B) Mitochondria- They are membrane bound and known as power house of the cell .Functions - They produce energy (ATP). Helps in regulating cell metabolism .Contain own DNA and RNA for protein synthesis.

C) Golgi apparatus- It acts an important site for packaging material within cell, for formation of glycolipids and glycoprotein.

D) Endoplasmic reticulum : Have smooth Endoplasmic reticulum and rough Endoplasmic reticulum . Functions: SER is involved in lipid synthesis and RER is involved in protein synthesis, also in transporting it in Golgi apparatus in vesicles.

E) Ribosomes - Known as protein synthesis .Functions as site of protein synthesis and polypeptides.

2) Process of lytic and lysogenic replication : In lytic cell viral DNA exists as separate free floating molecule within bacterial cell different from host bacterial DNA .

In lysogenic ,viral DNA is located within host .