CBSE Class 8 Science Microorganisms Assignment Set A

CBSE Class 8 Science - Microorganisms. Students are advised to refer to the attached assignments and practice them regularly. This will help them to identify their weak areas and will help them to score better in examination. Parents should download and give the assignments to their children for practice.

Q.1 Give one example of the following :

i) A unicellular algae

ii) A filamentous algae

iii) Algae forming clusters/colonies

iv) A brown algae

v) The bacteria found in curd

vi) One rod-shaped bacteria

vii) One spherical bacteria

viii) A protozoan which can photosynthesize

Q. 2 Match the columns:

i) Entamoeba histolytica a) Botulism

ii) Giardiasis b) Giardia

iii) Trypanosoma c) AIDS

iv) HIV d) Curd

v) Yeast & lactobacillus e) Amoebiasis

vi) Penicillium notatum f) Sleeping sickness

vii) Streptococcus pneumonia g) Antibiotic

viii) Clostridium botulinum h) Pneumonia

Q.3 Write briefly about the following:

i) Diatoms ii) Mildew iii) Cyanobacteria iv) Zooplanktons v) Algal bloom

vi) Spores vii) Anaerobic bacteria viii) Binary fission ix) pasteurization x) Microbiology

Q. 4 Answer the following questions:

a) List some methods of food preservation

b) Write two uses and two harms caused by the following :

i) Algae ii) Bacteria iii) Protozoa iv) Fungi

c) Draw well labelled diagram of the following :

i) Euglena ii) A bacterial cell iii) Paramecium

d) How do bacteria reproduce?

e) What is the major difference between bacterial cell and the cells of other organisms?

f) Why is “Virus” thought of as something in between the living and non-living ? How do they multiply within

a host cell?

Please click the link below to download CBSE Class 8 Science - Microorganisms



Click to View or Download pdf file
Click for more Science Study Material

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

National Online Painting Championship

The National Mission for Clean Ganga, Ministry of Jal Shakti in collaboration with Kalantar Art Trust is organizing KALANTAR-2020: National Online Painting Championship with the aim to provide a platform to youth and school children to demonstrate their artistic skills...

Keep your kids engaged during Lockdown

Kids are the Future of our Country! Outlines have changed and so should the formats of existence! It is the best time to teach our kids the pleasure of Self-Discipline, Self-Realization and Self-Control. To keep the future generation safe in such unpredictable...

Online Teacher Training Course on Competency based Education in DIKSHA

Competency is a set of skills, abilities, knowledge that helps an individual perform a given task in real life. Every learning should go into the imbibing of these skills to lead a productive and joyful life. The NATIONAL EDUCATION POLICY-2020 calls for shift towards...

Revised SOP preventive measures followed while conducting examinations

Revised SOP on preventive measures to be followed while conducting examinations to contain spread of COVID-19 issued by Ministry of Health & Family Welfare Examination centres are frequented by large number of students (as well as their parents) and staff till the...

NEP Transforming India Quiz

As a part of Shikshak Parv celebration, an online quiz competition on National Education Policy 2020 will be organized by the Ministry of Education, Govt. of India, from 5 th September to 25th September 2020 in order to create awareness about NEP among all stakeholders...

Mathematical Literacy Free Practice Book for Students

With a larger goal to promote 21st century skills such as critical thinking and problem solving, the Central Board of Secondary Education has shared a Mathematical Literacy: Practice Book for Students. This Work Book is designed to allow learners of classes 7th to 10th...

Studies Today