The Invisible Living World: Beyond Our Naked Eye — Important Questions
CBSE · Class 8 · Science
45 important questions from The Invisible Living World: Beyond Our Naked Eye for CBSE Class 8 Science, with answers.
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Important Questions from The Invisible Living World: Beyond Our Naked Eye
Which of the following are main parts of a cell?
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Cell membrane, Cytoplasm, Nucleus
The three main parts of a cell are cell membrane (outer boundary), cytoplasm (jelly-like substance inside), and nucleus (control center). Stomach and lungs are organs, not cell parts.
Microorganisms are visible to the naked eye.
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False
Microorganisms are extremely small and cannot be seen with the naked eye. We need a microscope to observe them.
What is the correct sequence of biological organization?
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Cell → Tissue → Organ → Organ system → Organism
The correct order is from smallest to largest: Cell forms tissue, tissues form organs, organs form organ systems, and organ systems form organism.
Which bacteria helps in milk conversion to curd?
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Lactobacillus
Lactobacillus bacteria present in curd converts milk sugar (lactose) into lactic acid, making the milk sour and forming curd.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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