Visibility of a cell membrane under microscopic Imaging
Nov 8, 2016 · Sorted by: 1. The membrane (and associated proteins) isn't actually opaque, it is just "more opaque" or "less translucent" than the cytosol: when you look through the microscope, you are utilizing this contrast to detect the edges. In the center of the cell you observe, you see the membrane straight-on, and light is only affected by 1-2 layers ...
terminology - What is the cell matrix? - Biology Stack Exchange
The mitochondrial matrix, a type of cytoplasmic matrix, is the fluid within the inner membrane of a cell's mitochondria that splits it into numerous compartments. This viscous "space" contains the mitochondria's DNA, ribosomes, soluble enzymes, small organic molecules, nucleotide cofactors, and inorganic ions; it is also the site in which ...
What organelles are in an onion cell? - Biology Stack Exchange
Dec 5, 2017 · To answer your question, onion cells (you usually use epithelial cells for this experiment) are ‘normal’ cells with all of the ‘normal’ organelles: nucleus, cytoplasm, cell wall and membrane, mitochondria, ribosomes, rough and smooth endoplasmic reticulum, centrioles, Golgi body and vacuoles. You cannot see most of these as they appear ...
What magnification do I need to see blood cells?
Oct 7, 2015 · If your target magnification is 400X, then get a 400X scope - it doesn't need to be rated any higher than the highest magnification you want. 600X sounds nice, it's actually higher than the (non-digital) scopes I routinely use for examining mammalian cell cultures. 400-600X should give a very clear detail of both red and white blood cells. Share.
What kind of a microscope do I need to see cell organelles?
individual cell. Lo resolution: Light microscope with 40x magnification. High resolution: Confocal microscope with 40-100x magnification. cell organelles. Low resolution: Confocal microscope with >=60x magnification. Note: some organelles are easier to visualize while others are difficult. With confocal you can manage to see almost all of them ...
How do I identify the different stages of meiosis under microscope?
Aug 31, 2016 · Late in this stage the chromosomes attach themselves by telomeres to the inner membrane of the nuclear envelope forming a bouquet. Nuceolus and nuclear membrane are present.(not visible under compound microscope) Zygotene. The uncondensed chromosomes are visible as a cloud of threads. Homologous chromosomes undergo synapsis forming bivalent.
cell biology - What is a microsome? - Biology Stack Exchange
Dec 29, 2016 · In cell biology, microsomes are vesicle-like artifacts re-formed from pieces of the endoplasmic reticulum (ER) when eukaryotic cells are broken-up in the laboratory; microsomes are not present in healthy, living cells. Whereas this other site says: Microsome is another name for the smooth endoplasmic reticulum (ER).
cell membrane - Why was the Davson-Danielli model rejected?
Jun 10, 2016 · 6. According to my textbook, Davson-Danielli's model of a phospholipid bilayer sandwiched between two layers of globular protein was incorrect. The nonpolar protein portions would separate the polar portions of the phospholipids from water, causing the bilayer to dissolve. Meaning, the Davson-Danielli model is not only incorrect, but it is also ...
How do nuclear membranes form during Telophase of …
Jun 1, 2015 · The nuclear membranes reform at the end of mitosis as the vesicles bind to the surface of chromosomes and fuse with each other to form a double membrane around the chromosomes (how this happens is not clear, except that integral membrane proteins and lamins may be involved, but physical contact is supposedly the first step). Share.
microbiology - What are the small white dots in an onion cell seen ...
Oct 22, 2021 · They're quite complicated (and expensive (average $294,000, per Google), and generally used for much higher magnifications. I also think you need specially treated specimens, not just a slice of onion. To this non-expert, those white spots look like thin places in your sample, seen in a light microscope. $\endgroup$ –