![subject](/tpl/images/cats/biologiya.png)
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 20:00
You have been asked to lead a demonstration for the undergraduate microbiology lab course about the uses of negative staining when studying bacteria. a "negative" stain does not stain the bacterial cell itself but stains the space between cells. under magnification, the acidic (negativelycharged) nature of the stain will be repelled by the negatively charged bacterial cell wall and willleave the cell colorless in a stained background. negative stains are used primarily to reveal the presence of negatively charged bacterial capsules; therefore, they are also called capsule stains. encapsulated cells appear to have a halo surrounding them. the negative stain procedure does not require heat fixation, which limits any chances of alteration in bacterial cell shape and size. the bacterial suspension is added to a drop of stain, such as nigrosin or eosin, and drawn across the glass slide using a coverslip.nigrosin staining-not safranin staining-of klebsiella pneumoniae will allow for the visualization of the cell shape and the determination of the presence of a capsule.true/false
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 19:30
The variation among individuals, on which natural selection acts
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 21:00
Mulitple choice which of the following is a function of the nucleus? a. stores dna b. stores sugars c. builds proteins d. packages proteins
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 21:00
Which process involves glucose reacting with oxygen to produce energy, carbon dioxide, and water? a. photosynthesis b. atp production c. glycolysis d. cellular respiration
Answers: 1
You know the right answer?
He mass number of an atom is equal to the sum of protons and neutrons in the nucleus. A helium atom...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 05.10.2020 04:01
![question](/tpl/images/cats/mat.png)
Mathematics, 05.10.2020 04:01
![question](/tpl/images/cats/mat.png)
Mathematics, 05.10.2020 04:01
![question](/tpl/images/cats/mat.png)
Mathematics, 05.10.2020 04:01
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.10.2020 04:01
![question](/tpl/images/cats/biologiya.png)
Biology, 05.10.2020 04:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
English, 05.10.2020 04:01
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/User.png)
Engineering, 05.10.2020 04:01
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 05.10.2020 04:01
![question](/tpl/images/cats/obshestvoznanie.png)