Changes

Jump to navigation Jump to search
115 bytes added ,  8 years ago
Line 53: Line 53:  
Figure 26.1 :  we are presented with a fixed Cell photomicrograph of Euglena gracilis X 1000 [courtesy of G. F. Leedale].
 
Figure 26.1 :  we are presented with a fixed Cell photomicrograph of Euglena gracilis X 1000 [courtesy of G. F. Leedale].
   −
One million nanometers per mm, and as well one thousand microns total one millimetre. This tubular shaped Cell shows as 47 microns in length with a somewhat pointed head end.
+
One million nanometers, as well as one thousand microns, total one millimetre. For our purposes the diameter of a small Atom is one Angstrom, or one tenth of a nanometre, across.  
   −
Mildly tapering from 7,000 nanometers [nm] to 10,000 nm, it has at its tail end one eyespot [2,000 nm across] and two flagella of unequal length - the longer is a 40 micron long entity - originating within a small cavity of the anterior end of the Cell.
+
This tubular shaped Cell shows as 47 microns in length with a somewhat pointed head end.
 +
 
 +
Mildly tapering from 10,000 nanometers [nm] to 7,000 nm, it has at its tail end one eyespot [2,000 nm across] and two flagella of unequal length - the longer is a 40 micron long entity - originating within a small cavity of the anterior end of the Cell.
    
Three other structures are the eukaryotic Cell nucleus at 2,500 nm in diameter, the (single) mitochondrion at 5,000 nm in diameter, and the chloroplasts - which are a tubular 2.5 X 8 microns in dimension - there are upwards of fifteen of them situated along the internal space of the Cell membrane.
 
Three other structures are the eukaryotic Cell nucleus at 2,500 nm in diameter, the (single) mitochondrion at 5,000 nm in diameter, and the chloroplasts - which are a tubular 2.5 X 8 microns in dimension - there are upwards of fifteen of them situated along the internal space of the Cell membrane.
   −
For comparison, a model Human Cell is 10 microns in diameter.
+
For comparison, a model Human Cell is 10 microns [or100,000 Atoms]  in diameter.
    
== The Photosynthetic Flagellates==
 
== The Photosynthetic Flagellates==
209

edits

Navigation menu