Autonomous organelles and Genome

Genome of Various organelles is explained in this video Lecture, Learn it at home and answer me following question
1. In plant cell how many type of Ribosomes are present?
2. In Protista, Where Does genome might be present?
3. What is endosymbiosis?
4. What is meaning of Autonomous organelles?

Link to Video: 
Semester: 
5
Unit: 
1
Subject: 
MICROBIOLOGY
Paper: 
1