| The thylakoid system was normally developed with grana composed of, on average, three to four stacked thylakoids. |
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| Chloroplasts at the proximal end of the cell also have grana, but with up to nine thylakoids per stack. |
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| Affected leaf tissue is white and the plastids lack thylakoids and chlorophyll. |
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| This organelle contains a complex membrane system, the thylakoids, in which the photosynthetic machinery is located. |
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| Chloroplast envelopes, stacked grana and unstacked stroma thylakoids were well-defined. |
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| Rhodophytes, like glaucophytes, lack chlorophyll b but carry a complement of phycobilins arranged in phycobilisomes on unstacked thylakoids. |
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| The pigment proteolipids of thylakoids have both a photosynthetic function and a role in membrane structure. |
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| The relative amount of stroma thylakoids is also increased, while the portion of grana thylakoids is lowered. |
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| The number of thylakoids per granum is influenced greatly by the irradiation intensity during development. |
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| Those appressed to another thylakoid in a stack called a granum are "appressed" or "agranal" thylakoids. |
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| The VPC chloroplasts possessed well-developed thylakoids with grana. |
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| The extraordinary chemical capabilities of the two organelles lie in the cristae and the thylakoids. |
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| When sunlight strikes the thylakoids, the light energy excites chlorophyll pigments, causing them to give up electrons. |
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| In contrast to electron transfer in light reactions I and II, which can occur in membrane fragments, intact thylakoids are required for efficient photophosphorylation. |
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| Thylakoids of grana stacks are mostly abundant in PSII complexes, while PSI complexes are predominant in stroma lamellae. |
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