What do certain microalgae produce that can be converted into biofuel?
Oils.
Why is biofuel from microalgae considered a promising alternative energy source?
Because it burns more cleanly.
What equipment is used in Spirulina farming?
Simple equipment and basic tanks filled with pond water.
What happens to Spirulina after farming before sale?
It is filtered, dried, and sold as powder or tablets.
Why has Spirulina farming become a useful livelihood option?
Because it grows quickly and requires simple equipment.
What does conserving microalgae help ensure?
Food security, environmental protection, and sustainable resource availability.
Why is the cell called the basic unit of life?
Because every organism is made of cells and life functions start inside a cell.
What basic activities does a cell perform for life?
Taking in food, releasing energy, removing waste, and responding to surroundings.
How do cells organize in multicellular organisms?
Cells divide and group into tissues, organs, and body systems.
How do microorganisms and multicellular organisms differ in life processes?
Microorganisms complete all processes in one cell; multicellular organisms divide work among many cells.
How do unicellular and multicellular organisms differ in cell number?
Unicellular organisms have one cell, multicellular have many cells.
What common components do plant and animal cells share?
They both have a nucleus, cell membrane, and cytoplasm.
How does bacterial DNA organization differ from true nuclei?
Bacteria lack a true nucleus; DNA is in the nucleoid region.
What distinguishes fungal cells regarding cell wall and chloroplasts?
Fungal cells have a cell wall but no chloroplasts.
How much can modern electron microscopes magnify a cell?
Nearly ten lakh times.
What do modern electron microscopes reveal about cells?
Structures that were previously unknown.
How have advances in microscopy helped scientists?
By helping them understand how living beings function, grow, and interact.
Test your knowledge with 7 questions on Microalgae and the Basic Unit of Life.
1. Regarding microalgae as sustainable resources, which of the following statements are correct?
2. A small community starts producing Spirulina in basic tanks. Which statements accurately describe this process?
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