Dictionary » D » Diameter



The length of a straight line passing through the centre of a circle and connecting opposite points on its circumference, hence the distance between two specified opposite points on the periphery of a structure such as the cranium or pelvis.

Please contribute to this project, if you have more information about this term feel free to edit this page

Results from our forum

Re: Help with indentifying object - can't narrow to even kingdom

... : The true plasmodial slime molds exist in nature as a plasmodium, a multinucleate blob of protoplasm up to several centimeters in diameter, without cell walls and only a cell membrane to keep everything in. This “supercell” (a syncytium) is essentially a large ameba with thousands ...

See entire post
by Sadial
Fri Jul 26, 2013 6:29 pm
Forum: General Discussion
Topic: Help with indentifying object - can't narrow to even kingdom
Replies: 2
Views: 1770


... a swarm). 1 cyanobacteria can do that 1 Magnetoglobus -> dead The MMP is a large prokaryotic microorganism that ranges from about 3 to 12 μm in diameter. It is best described as an aggregation of about 10 to 40 Gram-negative, genetically similar cells that swim only as an intact unit and not ...

See entire post
by BlahBlahBlah
Thu Jun 27, 2013 1:46 pm
Forum: Microbiology
Topic: Multicellular prokaryote
Replies: 24
Views: 17787

How to maintain sterility while preparing petri dishes

... I think the contaminating colonies were nearly identical; they were small, though. Probably the size of...I don't know; probably had half the diameter of a pencil eraser. Yes, whitish. Some of the colonies were rounded while others were not.

See entire post
by animus
Thu Jun 27, 2013 12:18 pm
Forum: Microbiology
Topic: How to maintain sterility while preparing petri dishes
Replies: 8
Views: 2287

plasmodesm and gap junction

... I found is that plant cell walls are not permeable to big proteins (more than 30-60 kDa), so they must be passed by plasmodesmata (with 20-40 nm diameter). As a result, every plant cell needs plasmodesmata but animal cells haven't any barrier like cell walls for protein transportation. So an ...

See entire post
by mnatashgaran
Mon Apr 01, 2013 7:46 pm
Forum: Cell Biology
Topic: plasmodesm and gap junction
Replies: 1
Views: 1519

Cottonwood tree twigs with star-shaped pattern

... a botanist please explain to this layman how that tiny star(five pointed) winds up in some twigs from cottonwood trees? When twigs about 1/4" diameter are cut in cross section at a "joint" (where the twig is slightly swollen and growth rings appear to circle the twig's bark), I sometimes ...

See entire post
by Thos
Sun Aug 19, 2012 2:54 am
Forum: Botany Discussion
Topic: Cottonwood tree twigs with star-shaped pattern
Replies: 0
Views: 1668
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 4,282 times. 
What links here | Related changes | Permanent link