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Introductory Microbiology for Nursing Professionals

par Liberty University

Ce matériel de cours est uniquement offert dans l'app iTunes U sur iPhone ou iPad.

Description du cours

An examination of the fundamental principles of microscopic organisms. Microorganisms are examined with regard to cell structure, growth, heredity, diversity, and epidemiology. The basic concepts of pathogenicity, immunology, human disease, and genetic engineering are presented. Restricted to online students with an RN license pursuing a BSN.

Avis des utilisateurs

Some fact checking needed

In the episode about viruses - around the half way point where the slides are shown, the narrator refers to viruses as “alive” - several times. I know this is just the way we use language to describe the activity of these particles but in a video like this it would be very important to distinguish alive from not alive. A virus meets non of the attributes we currently require from an organism to merit the attribute “living.

My second point is about viruses as obligate intracellular parasites. A virus must uses a cellular host to reproduce itself but these certainly exist outside cellular hosts.

It is a little bothersome to me when people state categorically that “god did this that or the other thing” - using other parts of the bible to infer what might have happened is a slippery slope.

Certainly a virus appears so mechanical (a lot like a sperm cell by the way) that it’s easy to conclude it was made and put into organisms, almost “installed” after the fact. Also that no other organisms make viruses as part of their cellular processes (except hosts infected by viruses) so it looks like there is a chicken and the egg problem there too - where did they originate?

Something else I would like to know is “what powers a virus?”. A sperm cell has a mitochondrial bundle to power the flagella. Bacteriophages have a mitochondrial shell/casing at the head- perhaps their energy comes from there but that’s a specific exception. Typical virus have no power source so how do they inject their DNA?

Getting back to God - I think explaining all the mechanical parts of these things goes a long way to helping people understand that we have a creator. Making assumptions about what the creators reasons for doing things are - I dunno. On a public stage like this it just makes me mad. In a closer- more personal discussion between friends, it would be fine.

Introductory Microbiology for Nursing Professionals
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Note

Nous n’avons pas reçu suffisamment de notes pour afficher la moyenne de cet article.