TO SMALL TO BE SEEN WITH THE UNAIDED EYES



Hi and good day everyone, so this week we will do Microscopic experiment, which we will doing all thing with microscope. Each of us was given a microscope to us to handle and take care it our heart(As we know that it is very expensive). So firstly, as usual our lecture will brief us a bit about this experiment. We discuss about the parts of microscope. We also discuss what is resolution. Resolution or resolving power is how apart two adjacent objects must be before a given lens show them as discrete entities. To calculate the resolving power is like below

Resolving power = wavelength of light_______
                                                                        2 x numerical aperture


First day experiment we only need to observe the slide provided. Which are B. cereus, S. cerevisiae, S. aureus and blood.



Blood




S. cerevisiae (1000X)



B. cereus (1000X)





S. aureus (1000X)




So experiment this week we will observe the slides that provided. The cells that we observe are S. aereus, B. cereus, S. cerevisiae . We observe their motility through microscope.There are two type of technique that we use to prepare the slides which are hanging-drop preparation and wet mount. Below are the slides that we observe and we capture how their motile.



B. cereus


S. aureus


P. vulgaris


So that is for me. I will update more next week. Thank you for visited my blog. I hope the contents can give benefit for others. 




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