Which statement accurately describes what occurs in photosystem II? Group of answer choices Light energy excites electrons in the electron transport chain in a photosynthetic unit. The photons are passed along to a molecule of P700 chlorophyll in the photosynthetic unit. The P680 chlorophyll donates a pair of protons to NADPH, which is thus converted to NADP+. The electron vacancies in P680 are filled by electrons derived from the splitting of water. The splitting of water yields molecular carbon dioxide as a by-product.

micro/nanoscale topography surface exhibits many prominent properties and is extensively employed in biomedical device, microfluidic device and energy device fabrication. additionally, the clinical applications of biomaterials can be largely expanded with of nanostructured surfaces.

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regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.

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