Search found 47 matches

by josem
Sat Apr 07, 2018 5:51 am
Forum: Microbiology
Topic: Recommendations for Bacteria Detection?
Replies: 8
Views: 16124

Re: Re:

I think you can use a hemocytometer to count the total bacteria present in the water. But it is difficult to count the motile bacteria in the hemocytometer. I suggest using a disinfectant to kill the bacteria before counting.I think you can also use a stain for seeing the bacteria under the microsc...
by josem
Sat Mar 31, 2018 4:33 pm
Forum: Microbiology
Topic: Recommendations for Bacteria Detection?
Replies: 8
Views: 16124

Re:

I think you can use a hemocytometer to count the total bacteria present in the water. But it is difficult to count the motile bacteria in the hemocytometer. I suggest using a disinfectant to kill the bacteria before counting.I think you can also use a stain for seeing the bacteria under the microsc...
by josem
Tue Mar 06, 2018 3:31 pm
Forum: Botany Discussion
Topic: Organic food is produced using inorganic fertilizers!
Replies: 1
Views: 1499

Re: Organic food is produced using inorganic fertilizers!

Actually, I forgot to ask the question. Is my assumption is correct?
by josem
Tue Mar 06, 2018 3:28 pm
Forum: Evolution
Topic: How can an egg be formed without a chicken and vice versa?
Replies: 1
Views: 1653

Re: How can an egg be formed without a chicken and vice versa?

Actually, I forgot to ask the question. Is my assumption is correct?
by josem
Sat Mar 03, 2018 4:02 am
Forum: Cell Biology
Topic: when does osmosis stop
Replies: 6
Views: 2969

Re: when does osmosis stop

There is a small correction. I think cell will burst. Slightly hypotonic = hypotonic to the interior of the cell contents. So water will enter it and burst the cells. However, it depends on the solute concentration of the hypotonic solution and the total number of cells in the solution. If the solut...
by josem
Fri Feb 23, 2018 3:44 pm
Forum: Cell Biology
Topic: when does osmosis stop
Replies: 6
Views: 2969

Re: when does osmosis stop

I think cell will burst. Slightly hypotonic = hypotonic to the interior of the cell contents. So water will enter it and burst the cells. However, it depends on the solute concentration of the hypotonic solution and the total number of cells in the solution. If the solute concentration is less and n...
by josem
Mon Feb 12, 2018 6:37 pm
Forum: Microbiology
Topic: Food Preservation using Pressure Cooker
Replies: 0
Views: 1509

Food Preservation using Pressure Cooker

It can be possible to preserve food with a shelf life of up to one year with our ordinary pressure cooker. This method of food preservation does not require refrigeration. Microbes already present in the food and coming from surrounding environment spoil the food. In this method, we kill the microbe...
by josem
Mon Feb 12, 2018 6:31 pm
Forum: Botany Discussion
Topic: Organic food is produced using inorganic fertilizers!
Replies: 1
Views: 1499

Organic food is produced using inorganic fertilizers!

All the fertilizers, whether organic; for producing organic food or inorganic; for producing conventional food, contain the same nutrients (elements) such as Nitrogen, Phosphorus, and Potassium etc. For example, if we consider the element Nitrogen, whether from organic or inorganic fertilizers both ...
by josem
Mon Feb 12, 2018 6:27 pm
Forum: Evolution
Topic: How can an egg be formed without a chicken and vice versa?
Replies: 1
Views: 1653

How can an egg be formed without a chicken and vice versa?

The question of which has formed first is being considered here, the egg or the chicken. It had always been an unsolved riddle, which has come first. If we consider a minor time scale in evolution, it will remain a riddle. But we can solve this if we go back beyond about 150 million years. If we con...
by josem
Mon Feb 12, 2018 6:02 pm
Forum: Microbiology
Topic: Why no bacterial disease provide lifelong immunity against reinfection
Replies: 0
Views: 1274

Why no bacterial disease provide lifelong immunity against reinfection

No bacterial disease will not provide lifelong immunity against reinfection. But viral diseases like smallpox and chicken pox provide lifelong immunity. I would like to know the reason behind this. Thank you.
by josem
Sat Feb 10, 2018 5:44 am
Forum: Microbiology
Topic: Is an effective vaccine against TB is possible?
Replies: 4
Views: 4346

Re: Is an effective vaccine against TB is possible?

Thank you very much for Mr. Frattoe for providing valuable information. The Mycobacterium tuberculosis is an intracellular pathogen and it forms granulomas. So it evades our immune system during dormant state. Antibody titer decreases after few weeks or months after infection. Immunological memory a...
by josem
Thu Dec 31, 2015 2:42 pm
Forum: Microbiology
Topic: Is an effective vaccine against TB is possible?
Replies: 4
Views: 4346

Dear scientist, Jack Bean I need your response.