THE FUNDAMENTAL UNIT OF LIFE

S.No.	List of Questions of chapter "THE FUNDAMENTAL UNIT OF LIFE"
	In text Questions page number 59
1	Who discovered cells, and how?
2	Why is the cell called thestructural and functional unit oflife?
	In text Questions page number 61
1	How do substances like CO2 andwater move in and out of the cell?Discuss.
2	Why is the plasma membranecalled a selectively permeablemembrane?
	In text Questions page number 63
1	Fill in the gaps in the followingtable illustrating differencesbetween prokaryotic andeukaryotic cells.
	In text Questions page number 65
1	Can you name the two organelleswe have studied that containtheir own genetic material?
2	If the organisation of a cell isdestroyed due to some physicalor chemical influence, what willhappen?
3	Why are lysosomes known assuicide bags?
4	Where are proteins synthesisedinside the cell?
	Textbook Exercise
1	Make a comparison and write down ways in which plant cellsare different from animal cells.
2	How is a prokaryotic cell different from a eukaryotic cell?
3	What would happen if the plasma membrane ruptures or breaksdown?
4	What would happen to the life of a cell if there was no Golgiapparatus?
5	Which organelle is known as the powerhouse of the cell? Why?
6	Where do the lipids and proteins constituting the cell membraneget synthesised?
7	How does an Amoeba obtain its food?
8	What is osmosis?
9	Carry out the following osmosis experiment:Take four peeled potato halves and scoos each one out to makepotato cups. One of these potato cups should be made from aboiled potato. Put each potato cup in a trough containing water.Now,(a) Keep cup A empty(b) Put one teaspoon sugar in cup B(c) Put one teaspoon salt in cup C(d) Put one teaspoon sugar in the boiled potato cup D.Keep these for two hours. Then observe the four potato cupsand answer the following:(i) Explain why water gathers in the hollowed portion ofB and C.(ii) Why is potato A necessary for this experiment?(iii) Explain why water does not gather in the hollowed outportions of A and D.