Microorganisms — Friend and Foe
Science · Grade 8 · Week 2 · 25 questions
The human body is an incredible system of organs working together. Understanding how your body systems function helps you appreciate the complexity of life and make better health choices.
What you'll practise
- Identify major organs and their functions
- Explain how body systems work together
- Understand the structure of key body systems
- Describe common health conditions and prevention
All 25 questions in this Microorganisms — Friend and Foe quiz
Grade 8 Science — Microorganisms — Friend and Foe: 25 practice questions with instant scoring and explanations.
- Which of the following is a unicellular prokaryotic organism?
- What is the primary component of a virus?
- Which microorganism causes bread to rise during fermentation?
- What is nitrogen fixation?
- Which of these is a harmful microorganism for humans?
- What does pasteurization involve?
- Which bacteria is commonly used in making yogurt?
- What is the primary function of protozoa in soil?
- Which disease is caused by a virus?
- What do we call fungi that help plants absorb nutrients from soil?
- How do bacteria typically reproduce?
- Which microorganism is responsible for soil decomposition?
- What is the shape of a rod-shaped bacterium called?
- Which microorganism is used in making cheese?
- What is food spoilage primarily caused by?
- Which gas do cyanobacteria produce as a byproduct of photosynthesis?
- What is the term for microorganisms that survive in extreme conditions?
- Which microorganism produces spores as a form of survival?
- What role do decomposer microorganisms play in ecosystems?
- Which microorganism causes common cold?
- What is an antibiotic?
- How does fermentation by microorganisms preserve food?
- Which of these is a single-celled protozoan?
- What is the cell wall of fungi primarily made of?
- Which microorganisms are used in sewage treatment?
Question 1 of 250 correct so far