


ICSE /Class 9
Biology MCQ Based On Harmful role of bacteria
Our free online Biology test quiz for Class 9, ICSE will assist you to improve your Biology skills on every concept in a fun interactive way.



Happy students

Awesome classes
ICSE Class 9 Biology Harmful role of bacteria
|
All the above diseases are caused by bacteria.
Bacteria are very small living things that can only be seen with special equipment (a microscope). Bacteria exist in large numbers in air, water, soil, plants and the bodies of people and animals. Some bacteria cause disease
Bacteria are single celled organism and have no nucleus.
Parasites - They obtain their organic food from living cells of plant and animals. Example -Salmonella typhi Sulphur bacteria - These bacteria derives energy by oxidizing hydrogen sulphide. Example - Thiobacillus Symbiotic bacteria - In this two organisms live in close association. Example - Rhizobium Nitrifying bacteria - Ammonia oxidized into nitrate or nitrite. Example - Nitrosomonas
Bacteria are single celled disease causing micro-organism. Fungi are multi celled disease causing micro-organism. Protozoa can be unicellular or multicellular. Algae includes multicellular, photosynthetic organisms.
Bacteria are very small living things that can only be seen with special equipment (a microscope). Bacteria exist in large numbers in air, water, soil, plants and the bodies of people and animals. Some bacteria cause disease
Bacteria are very small living things that can only be seen with special equipment (a microscope). Bacteria exist in large numbers in air, water, soil, plants and the bodies of people and animals. Some bacteria cause disease
Bacteria are very small living things that can only be seen with special equipment (a microscope). Bacteria exist in large numbers in air, water, soil, plants and the bodies of people and animals. Some bacteria cause disease
The process of conversion of atmospheric nitrogen into ammonia is called nitrogen fixation. Example of bacteria which have this ability can be Azotobacter and Clostridium.
Bacteria are very small living things that can only be seen with special equipment (a microscope). Bacteria exist in large numbers in air, water, soil, plants and the bodies of people and animals. Some bacteria cause disease

At JustTutors, we believe in the power of digital technology to help students get personalized learning and attention from India's best-in-class science, english and math tutors. We are focused on creating a top-class e-learning platform that brings together the best teachers, technology, media, content for creating a seamless and world-class experience for every student.
