Question

1) who coined the term protoplasm in living matters?
2)who did propose cell theory?
3)name the largest cell?
4)name the longest animal cell?
5)give an example of prokaryotic cell?
6)what is example of a eukaryotic cell?
7)name the phenomenon by which raisins placed in water swell up?
8)whether ATP molecules are consumed in the process of osmosis?
9)what is the function of ligin deposition in cell wall?
10)what is the charecteristics of nuclear envelop?

Answer 1

1)hugo vol mohl
2)Theodar schawn , Matthias jacob schelidin
3)ostrich egg
4)nerve cell
5)bacterial cell
6)human cell like RBC
7)osmosis
8)no
9)it helps in conducting water in plant cells
10)it helps in seprating nucleus from cytoplasm


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Answer 2

1.Johannes E. Purkinji coined the term protoplasm for living matter in 1839.
2.Schleiden and schwann are the scientists who proposed cell theory.
3.ostrich egg.
4.Nerve cells are longest cell.
5.bacteria.
6.red Mason bee
7.osmosis.
8.No, ATP molecules are not involved in the process of osmosis. Because in osmosis, movement of ions occurs from high concentration to low concentration. Since this process is a energetically favorable reaction, it does not need external energy.
9.Lignin is nothing but a class of complex organic polymers that forms important structural materials in the support tissues of vascular plants and some algae.
The function of lignin deposition in cell wall of the plant cells is to support and provide structure to the plant by making them rigid.
10.the charactsics of nuclear envelope is that it seperates the nucleus from cytoplasm.


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