Fahim Foysal

No, centrioles are not typically visible under a light microscope. Centrioles are small, cylindrical structures found in animal cells, and they play a crucial role in the organization of microtubules during cell division. However, centrioles are very small and are below the resolution limit of a light microscope, which is approximately 200 nanometers. Therefore, they

No, electron microscopes cannot generally be used to observe living cells. The preparation process for electron microscopy involves dehydration and vacuum conditions that are incompatible with maintaining living cells. Electron microscopes use electron beams instead of light to achieve much higher resolution images than light microscopes. However, the sample preparation for electron microscopy involves fixing,

Staphylococcus bacteria appear as spherical clusters or grape-like structures under a microscope. Staphylococcus, commonly known as staph, is a genus of bacteria characterized by its round shape and tendency to form clusters. When viewed under a microscope, these bacteria appear as spherical clusters resembling grapes or bunches. The name “staphylococcus” is derived from the Greek

Yes, electron microscopes are expensive. Electron microscopes are sophisticated scientific instruments that use electron beams to achieve extremely high magnification and resolution, allowing researchers to observe objects at the nanoscale. The technology and precision required in electron microscopes contribute to their high cost. These instruments often involve complex components, including electron sources, electromagnetic lenses, detectors,

Under a microscope, a kidney stone typically appears as a crystalline structure with various shapes and sizes, such as jagged edges or smooth surfaces, depending on the composition of the stone. Kidney stones are formed from accumulating substances in the urine, such as calcium, oxalate, and phosphate. These substances can crystallize and aggregate, leading to

Under a microscope, nail fungus (onychomycosis) typically appears as hyphae (thread-like structures) invading and spreading within the nail tissue. Nail fungus is primarily caused by dermatophyte fungi, commonly Trichophyton rubrum, Trichophyton mentagrophytes, or Candida species. When observed under a microscope, these fungi exhibit distinctive characteristics. The hyphae, which are branching filaments, penetrate and invade the

Chlamydia is a bacteria that cannot be seen with the naked eye. Under a microscope, Chlamydia appears as small, round, or oval-shaped cells. Chlamydia trachomatis is an obligate intracellular bacterium, meaning it can only survive and replicate inside host cells. When observed under a microscope, Chlamydia cells typically appear as small, gram-negative, cocci or rod-shaped

No, individual atoms are not directly visible under a standard electron microscope. The wavelength of electrons used in electron microscopes is much shorter than that of visible light, allowing for much higher resolution. However, even with this high resolution, the individual atoms are generally not directly visible. Instead, electron microscopes can provide detailed images of

Under the microscope, Trichomoniasis appears as pear-shaped protozoa with a jerky, irregular motion. Trichomoniasis is caused by the protozoan parasite Trichomonas vaginalis. When observed under a microscope, the organism typically has a pear-shaped or oval form, measuring about 10 to 20 micrometers in length. It has a single flagellum (whip-like appendage) that propels its movement,