With the discovery of which of the following, the study of the structural details was made possible

1. compound microscope
2. electron microscope
3. cryo-electron microscope
4. Fluorescent microscope
Subtopic:  Cell Theory |
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Level 1: 80%+
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Which of the following is true about unicellular organism ?

1. anything less than a complete structure of a cell does not ensure independent living
2. it is capable of independent existence
3. cell is structural and functional unit
4. All of the above
Subtopic:  Cell Theory |
 89%
Level 1: 80%+
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New cells generate from

1. bacterial fermentation
2. regeneration of old cells
3. pre-existing cells
4. abiotic materials

Subtopic:  Cell Theory |
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Level 1: 80%+
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Rudolf Virchow modified Schleiden and Schwann’s cell theory by adding a crucial principle. What key addition did he make?
1. Cells arise spontaneously from non-living matter.
2. Cells are only composed of non-cellular products.
3. Cells can be created artificially under laboratory conditions.
4. All cells arise from pre-existing cells.
Subtopic:  Cell Theory |
 97%
Level 1: 80%+
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Who proposed the hypothesis that the bodies of animals and plants are composed of cells and products of cells, and also noted that the presence of a cell wall is a unique characteristic of plant cells?
1. Matthias Schleiden 2. Rudolf Virchow
3. Louis Pasteur 4. Theodor Schwann
Subtopic:  Cell Theory |
 80%
Level 1: 80%+
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