in the “DNA extraction from fruit” laboratory, what solution disrupted the cell and nuclear membrane?   methyl orange hydrogen peroxide  tap water detergent and a salt-based lysis solution ice-cold ethanol.

Q: When preparing a "wet mount" slide of your own cheek cells, what is the name of the wet medium that…

A: Cheek cells are human cells and eukaryotic cells which can be visualized under the microscope. These…

Q: If you have a mixed (Gram positive and Gram negative) sample, and you complete a Gram stain, and all…

A: On the basis of lipid content in cell wall of bacteria these are classified into two types : Gram…

Q: What is the best wavelength to study light scattering with bacteria?     260 nm     260-280 nm…

A: 260-280 nm The best wavelength to study light scattering with bacteria depends on the specific…

Q: You are in charge of buying new microscopes for your company, and you have been comparing different…

A: It is an instrument which is used to observe things which are invisible to the normal eye in nice…

Q: The field of view (FOV) is the entire circular image we see when looking into the eyepiece. The…

A: Microscope is an optical instrument which has major application in visualizing very small to…

Q: What is an electron micrograph? Why do electron micrographshave greater resolution than light…

A: Microscope helps to observe the organisms or objects that cannot be seen by our naked eye because…

Q: These cells are being viewed under high power.  Use the length of just one cell to estimate the…

A: Field of view or FOV is said to be the area which could be observed by the microscope. Measurement…

Q: How does electrophoresis separate dye pigments? What charge is carried by the pigments in this…

A: Electrophoresis d the process of separation of DNA/ protein molecules on the basis of size. The DNA…

Q: You and a partner conduct the acid-fast staining using the same two bacteria. You know that there…

A: Acid-fast staining is a technique of differential staining that demonstrates to be an important…

Q: Blue light has the shortest wavelength in the visible spectrum. If blue light were used with a…

A: Answer  Blue light has a wavelength approximately near to 500 nano- meter. And it has the shorter…

Q: For each stain, indicate if it’s a cationic dye or an anionic dye (2 pts).             Stain…

A: Cationic Dyes- These are the dyes which dissociates into cations in aqueous solutions. Anionic Dyes-…

Q: Using a compound microscope, if I move my sample from down to up (1), in which direction will the…

A: Microscope is device used to magnify small objects and to study smaller specimen in microbiology.

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.