There's no note of sexuality here, which is also important. Celie was raped repeatedly by Mr., her husband, and her step-father. She grew numb to it, which can happen with repeated abuse especially when it happens so often. The only sex she ever enjoyed was the completely consensual and compassionate time she shared with Shug. That makes Celie possibly gay/lesbian/bisexual/queer, or even asexual because she wasn't actually concerned about the act but more the emotional attachment and connection with Shug. Without any other positive sexual ex... Read more →
Woman In A Purple Coat or The Purple Coat is a painting by Henri Matisse from 1937. It depicts Matisse's assistant Lydia Delectorskaya. This painting is an example of Henri Matisse's mature decorative style. Matisse depicts his model and companion of many years, Lydia Delectorskaya, in an exotic Moroccan costume, surrounded by a complex of abstract design and exotic color.  This is an example of one of the final groups of oil paintings in Matisse's career, in 1950 he stopped painting oil paintings in favor of creating paper cutouts.
Some prokaryotes express proton pumps called bacteriorhodopsins , proteorhodopsins , and xanthorhodopsins to carry out phototrophy .  Like animal visual pigments, these contain a retinal chromophore (although it is an all- trans , rather than 11- cis form) and have seven transmembrane alpha helices ; however, they are not coupled to a G protein. Prokaryotic halorhodopsins are light-activated chloride pumps.  Unicellular flagellate algae contain channelrhodopsins that act as light-gated cation channels when expressed in heterologous systems. Many other pro- and eukaryotic organisms (in particular, fungi such as Neurospora ) express rhodopsin ion pumps or sensory rhodopsins of yet-unknown function. Very recently, a microbial rhodopsin with guanylyl cyclase activity has been discovered.   While all microbial rhodopsins have significant sequence homology to one another, they have no detectable sequence homology to the G-protein-coupled receptor (GPCR) family to which animal visual rhodopsins belong. Nevertheless, microbial rhodopsins and GPCRs are possibly evolutionarily related, based on the similarity of their three-dimensional structures. Therefore, they have been assigned to the same superfamily in Structural Classification of Proteins (SCOP).