Search found 21 matches

by sara135
Thu Jul 14, 2011 10:12 am
Forum: Microbiology
Topic: Why do carrots spark in the microwave?
Replies: 7
Views: 45547

Re: Why do carrots spark in the microwave?

I am guessing carrot's logic also would work for celery: If you often cook mixed vegetables from frozen in a microwave, on a microwaveable plate you may notice that carrots produce sparks during cooking and, on closer examination, they display small burns. Why is this? several factors make frozen ca...
by sara135
Tue Jul 12, 2011 1:50 pm
Forum: General Discussion
Topic: My new experiment in DNA modification
Replies: 7
Views: 6303

Re: My new experiment in DNA modification

Okay, I'm having some problems with the Qiagen kit. Ive got frozen paraffin embedded tissues and modified the extracted dna. i ran two pcr amplifications at about 300bp and then 200bp. dna recovery is low after the bisulfite modification. My samples are showing nothing! Any ideas?
by sara135
Tue Jul 12, 2011 12:38 pm
Forum: Microbiology
Topic: Fungi Culture
Replies: 3
Views: 10279

Re: Fungi Culture

The medical staff should observe their institution's procedures to protect both themselves and their patients from spread of infectious diseases. The use of such protective barriers as gloves, gowns, aprons, masks or protective eyewear can reduce the risk of exposure of the health care worker to pot...
by sara135
Tue Jul 12, 2011 12:21 pm
Forum: Microbiology
Topic: Seawater Desalination intake - algae, lichen or mollusc?
Replies: 3
Views: 3272

Re: Seawater Desalination intake - algae, lichen or mollusc?

Wow, i did/t know anything about it before... tnx
by sara135
Tue Jul 12, 2011 12:17 pm
Forum: Microbiology
Topic: Viral Enzymes
Replies: 2
Views: 9748

Re: Viral Enzymes

A virus uses several tools to infect a cell. Enzymes are such tools, helping the virus progress through the various stages of infection. Enzyme inhibitors can block the action of these viral enzymes, interrupting the spread of disease at a particular point.
by sara135
Tue Jul 12, 2011 12:14 pm
Forum: Microbiology
Topic: Modern mitochondria
Replies: 12
Views: 15508

Re: Modern mitochondria

They would be obligate aerobes and heterotrophs.
by sara135
Tue Jul 12, 2011 12:10 pm
Forum: Microbiology
Topic: is it micrococcus luteus or staphylococus aureus
Replies: 2
Views: 21931

Re: is it micrococcus luteus or staphylococus aureus

There are several tests you could do to differentiate these two. You can do a nitrate broth: M. luteus is negative for nitrate reduction, and S. aureus is positive for nitrate reduction. You could also do a skim milk plate: M. luteus is capable of hydrolyzing insoluble casein, and S. aureus is not. ...
by sara135
Tue Jul 12, 2011 12:06 pm
Forum: Microbiology
Topic: Outline for TB powerpoint on Ecology and transmission
Replies: 6
Views: 5573

Re: Outline for TB powerpoint on Ecology and transmission

Tuberculosis (TB) will not cause any symptoms until the infection has reached the lungs. As the bacteria are very slow moving, the condition develops very slowly. Your symptoms might not begin until many years after you were initially exposed to the bacteria.
by sara135
Tue Jul 12, 2011 12:03 pm
Forum: Microbiology
Topic: bacteria and fungi in pond water
Replies: 4
Views: 7418

Re: bacteria and fungi in pond water

A pond contains three basic types of bacteria, each of which contains several different micro-organisms. While some types of bacteria are harmful, most are beneficial to the wildlife and plant life that inhabit ponds. Without certain types of bacteria, ponds would become overridden by algae and othe...
by sara135
Tue Jul 12, 2011 12:02 pm
Forum: Microbiology
Topic: Are Euglenophyta disease agents?
Replies: 3
Views: 4845

Re: Are Euglenophyta disease agents?

A disease causing agent is often referred to as a pathogen. A pathogen, such as a virus or a strain of bacteria can enter the body and cause a host of symptoms. Many times, these symptoms collectively indicate the presence of a type of disease and or infection.
by sara135
Tue Jul 12, 2011 12:00 pm
Forum: Microbiology
Topic: unknown bacteria
Replies: 6
Views: 5855

Through the various tests that were ran in lab, we were able to discern quite a few things about our unknown. The first of which was that it is gram positive, since it was purple after the gram staining. This was supported further by the lack of growth on the EMB plate. It did, however, grow on the ...
by sara135
Tue Jul 12, 2011 11:57 am
Forum: Microbiology
Topic: PROKARYOTE VS EUKARYOTE PHOTOSYNTHESIS
Replies: 3
Views: 21430

Re: PROKARYOTE VS EUKARYOTE PHOTOSYNTHESIS

In photosynthetic eukaryotes chloroplasts in cells are the sites of photosynthesis but this is not the case in photosynthetic prokaryotes. In eukaryotes, chloroplasts in their cells are abundant, which are not present in photosynthetic prokaryotes. So, we can say that the makings sites of carbohydra...