ExERCISE 4 Bacteria and ProtistsI Introduction What major characteristic disting

Question

ExERCISE 4 Bacteria and ProtistsI Introduction What major characteristic distingsishes bacteria from protists? 4.1.A. Bacteria 2. What form of bacterium is shown in this photomicrographi? (1100x) 4.1.c. cyanobacteria 3. Examine the photomicrograph on the right, taken using an oil-immersion objective, the highest practical magnification of a light microscope. (The final magnification is 770x.) (a) Based on your observation, identify the kingdom to which the organism belongs. (770x) (b) Justify your answer. 4. Observe the photomicrograph on the right of an organism that was found growing symbiotically within the leaves of the water fern Azolla. (a) What is the common name given to an organism of this type? Give the name and function of the cell depicted by the line (b) (432x)

Explanation / Answer

2. Its a Rod shaped bacteria(Bacilli).

3. a.

Its a cyanobacteria and it belongs to the kingdom monera.

b.Homogenously coloured due to lack of chloroplast in cyanobacteria. Organelles are absent (except ribosome).

4.a.

Symbiont.

b. Name of the cell is heterocyst.

Its main function is involved in nitrogen fixation.

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