A virus measures 100 nm in length. What is its length in μm? Which of the following pairs is mismatched? The limit of resolution of the compound microscope illuminated with visible light is approximately 0.2 μm.
Similarly one may ask, does microsomes take part in photosynthesis?
Microsomes Participate in the process of photosynthesis.
Pili are fine hair like microfibers having pilin – a thick tubular structure while the fimbriae are tiny bristle-like fibers emerging from the surface of the bacterial cells. Pili are longer than fimbriae.
Also question is, what are the types of electron microscope?
There are two main types of electron microscope – the transmission EM (TEM) and the scanning EM (SEM). The transmission electron microscope is used to view thin specimens (tissue sections, molecules, etc) through which electrons can pass generating a projection image.
What is TEM microbiology?
Transmission electron microscopy (TEM) is a technique used to observe the features of very small specimens. The technology uses an accelerated beam of electrons, which passes through a very thin specimen to enable a scientist the observe features such as structure and morphology.
Which cocci occurring in single or pairs?
Cocci may occur as single cells or remain attached following cell division. Those that remain attached can be classified based on cellular arrangement: Diplococci are pairs of cocci (e.g. Streptococcus pneumoniae and Neisseria gonorrhoeae) Streptococci are chains of cocci (e.g. Streptococcus pyogenes).
Which of the following is not associated with an electron microscope?
Which of the following is NOT associated with an electron microscope? scanning tunneling. Which of the following microscopes produces the highest resolution images? If a microbiology lab technician left the safranin out of the Gram stain procedure, what would be the result?
Which of the following is not part of the Endomembrane system?
Endoplasmic reticulum, golgi complex, lysosomes and vacuoles are parts of endomembrane system of the cell but mitochondria is not the part of endomembrane system.
Which of the following is used in electron microscope?
Which of the following is used in electron microscope? Explanation: Electron Microscope uses electron beams and magnetic fields to produce the image, whereas the light microscope uses light waves and glass lenses.
Which of the following statements is correct about passive diffusion?
Which of the following statements is correct about passive diffusion? It involves movement of molecules down a concentration gradient and may require a transport protein. Which one of the following organisms has a cell wall? pili are used for transfer of DNA and motility.
Which one of the following pairs is mismatched lysosome protein synthesis?
Protein synthesis occurs in the ribosome and not in the lysosome. So the answer is c. Lysosome-protein synthesis.
Which type of bacteria can be found in pairs chains?
Pairs of cocci are called diplococci; rows or chains of such cells are called streptococci; grapelike clusters of cells, staphylococci; packets of eight or more cells, sarcinae; and groups of four cells in a square arrangement, tetrads.
Why do different bacteria have different shapes?
The simplest conclusion is that morphological adaptation serves an important biological function. … Simply put, bacteria with different shapes present different physical features to the outside world, and these features help cells cope with and adapt to external conditions.
Why do some species of bacteria occur as pairs chains and clusters?
Some bacteria divide in one specific direction. With cocci (spherical bacteria), this type of cell division can result in pairs (diplococci) or chains (streptococci) that are characterizing features of certain bacteria. Other bacteria divide in several directions, resulting in tetrads or clumps.