Table 1. Percentage of lateral membranes within 20 nm.

Days growth	No. cells	% of membrane	within 20 nm
		−stroma	+stroma
1	2	2% (n = 1)	13% (n = 2)
2–3	4–5	4.98% (n = 2)	41.4% (n = 2)
7	100–200	9.4% (n = 4)	54% (n = 4)#

The values in table 1 have standard deviations of ±15%, #  = p<0.018.