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Verbally envisaging Figure 26.1 :  we are presented with a fixed Cell photomicrograph of Euglena gracilis X 1000 [courtesy of G. F. Leedale].
 
Verbally envisaging Figure 26.1 :  we are presented with a fixed Cell photomicrograph of Euglena gracilis X 1000 [courtesy of G. F. Leedale].
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One thousand microns total one millimetre. This tubular shaped Cell shows as 4700 microns (mu) in length with a somewhat pointed head end.
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One thousand microns total one millimetre. This tubular shaped Cell shows as 47,000 microns (mu) in length with a somewhat pointed head end.
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Mildly tapering from 700 mu to 1000 microns it has at its tail end one eyespot [200 mu across] and two flagella of unequal length - the longer is a 5000 mu entity - originating within a small cavity of the anterior end of the Cell.
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Mildly tapering from 7,000 mu to 10,000 microns it has at its tail end one eyespot [2,000 mu across] and two flagella of unequal length - the longer is a 40,000 micron long entity - originating within a small cavity of the anterior end of the Cell.
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Three other structures are the [eukaryotic] Cell nucleus at 300 mu in diameter, the (single) mitochondrion at 500 mu in diameter, and the chloroplasts - which are a tubular 250 X 800 microns in dimension - there are upwards of fifteen of them situated along the internal space of the Cell membrane.
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Three other structures are the [eukaryotic] Cell nucleus at 300 mu in diameter, the (single) mitochondrion at 500 mu in diameter, and the chloroplasts - which are a tubular 2,500 X 8,000 microns in dimension - there are upwards of fifteen of them situated along the internal space of the Cell membrane.
    
== The Photosynthetic Flagellates==
 
== The Photosynthetic Flagellates==
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