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Unformatted text preview: Some bacteria have chlorophyll and can photosynthesize, but lack the membrane-bounded chloroplasts. Some bacteria also have photosynthetic pigments other than chlorophyll. Typical Chloroplast Structure: The plant chloroplast is a double-layered membrane bounded organelle, with an inner compartment that contains more membranes. The outer and inner membranes are smooth, and oval shaped in higher plants. The internal membranes are disc like in structure and called thylakoids. These flattened discs stack up to form grana. The photosynthetic pigments are arranged on the grana. The fluid in which the grana are suspended is called the stroma This distinctive structure is important for the multiple processes, which occur during photosynthesis, a process that we will discuss in great detail later. Like mitochondria, chloroplasts contain unique DNA and may have evolved similarly as endosymbionts....
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This note was uploaded on 12/29/2011 for the course BIO 151 taught by Professor Edwards during the Spring '10 term at SUNY Stony Brook.
- Spring '10