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Rods

rods (retina)

One of the two photoreceptor cell types of the vertebrate retina. In rods the photopigment is in stacks of membranous disks separate from the outer cell membrane. Rods are more sensitive to light than cones, but rod mediated vision has less spatial and temporal resolution than cone vision.


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Re: Re:

... among those, so I do not know for certain how it should look. Without special stains most bacteria simply look like various kinds of dots or rods that are difficult to tell apart from some other causes, such as inclusion bodies or precipitates in the staining solution. The good side, though, ...

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by biohazard
Tue Dec 10, 2013 2:02 pm
 
Forum: Microbiology
Topic: What do you think these are, in my blood?
Replies: 16
Views: 9256

Re:

"GRAM NEGATIVE- clustered in chains, splotches, and red/pink. Blue Vegetative cells." - Rods or Cocci??? "THIOGLYCOLLATE MEDIUM- Anaerobic" -Which anaerobe? (http://en.wikipedia.org/wiki/Thioglycollate_broth) "SEMI SOLID (Sloppy) Agar – Anaerobic" ...

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by microbiologyhelp
Sun Dec 01, 2013 11:36 am
 
Forum: Microbiology
Topic: URGENT HELP IDENTIFYING UNKNOWN BACTERIA!!!
Replies: 6
Views: 5655

URGENT HELP IDENTIFYING UNKNOWN BACTERIA!!!

"GRAM NEGATIVE- clustered in chains, splotches, and red/pink. Blue Vegetative cells." - Rods or Cocci??? "THIOGLYCOLLATE MEDIUM- Anaerobic" -Which anaerobe? (http://en.wikipedia.org/wiki/Thioglycollate_broth) "SEMI SOLID (Sloppy) Agar – Anaerobic" ...

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by Cat
Fri Nov 29, 2013 5:17 pm
 
Forum: Microbiology
Topic: URGENT HELP IDENTIFYING UNKNOWN BACTERIA!!!
Replies: 6
Views: 5655

Bacterial Taxonomy

... Virtually all members of Firmicutes or Actinobacteria stain as Gram-positive , but genus Veillonella is an exception, staining as Gram-negative rods. Oh nevermind, Wikipedia says they're cocci ? I thought Clostridians were rod-shaped!!! Are there any other exceptions within domain bacteria that ...

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by wildfunguy
Sat Oct 19, 2013 6:12 pm
 
Forum: Microbiology
Topic: Bacterial Taxonomy
Replies: 3
Views: 3971

Re: About how many megapixels would human eye hold?

... for color vision, you might suppose that this equates to a five megapixel equivalent for the human eye. But there are also a hundred million rods that detect monochrome contrast, which plays an important role in the sharpness of the image you see. And even this 105MP is an underestimate because ...

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by hymenoptera7
Tue Jun 25, 2013 2:42 am
 
Forum: General Discussion
Topic: About how many megapixels would human eye hold?
Replies: 1
Views: 1030
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