Question

need hel fron 2,3 and 4 question

NOTES AND OBSERVATIONS QUESTIONS in re we call leukepotica 3. Eli the Merce between Brownian movement and the motility of bacterial cells based on your obation 4. Wat causes Brownian movement?

Answer 1

Ans 2:

Prokaryotic Flagella	Eukaryotic Flagella
Smaller and simpler structure	Larger and complex structure
Made up of protein Flagellin	Made up of protein Tubulin
Rotatory movement	Bending movement
Proton driven	ATP driven

Ans 3: In Brownian motility, the movement seen is due to the molecules of the solvent medium bombarding with the organism's surface. This causes jerky or irregular movements. Brownian motion is shown by dead cells too.

In case of true motility the bacterium moves with the help of special organelles such as flagella, or by the production of slime by the organism (gliding motility). In this case the bacteria moves purposefully towards a substance which can be food, light or oxygen. True motility is shown by living organisms alone.

Ans 4: Brownian movement is caused by water molecules bouncing around in the solution, knocking up against each other and the microorganisms. Kinetic energy inherent to all molecules causes this kind of movement. Brownian motion is in part responsible for facilitating movement in bacteria that do not encode or express motility appendages, such as Streptococcus and Klebsiella species.