The fundamental unit of life class 9 extra questions and answers pdf

the fundamental unit of life class 9 extra questions and answers pdf –

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The fundamental unit of life class 9 extra questions and answers pdf

What process is involved in the movement of O2 in and out of the cell?

Diffusion.

Which process is involved in the movement of water from outside into the cell?

Osmosis.

Mention the process by which CO2 and water move in and out of the cell.

Movement of CO2 occurs by diffusion whereas that of water occurs by osmosis.

Who discovered cells in living organisms? Give an example of a unicellular organism.

A.V. Leeuwenhoek observed the.cells in living organisms. Example of a unicellular organism is Amoeba, Paramoecium, etc.

Give two examples of prokaryotic organisms.

All the bacteria and cyanobacteria are prokaryotic. Example: Nostoc, Oscillatoria, etc.

Name the plastid which stores starch, oils and protein granules.

Leucoplast


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