Leaves adapt to photosynthesis through thin, broad shapes, stomata open and close based on potassium ion accumulation and turgor pressure theories, and the human nephron functions in blood filtration and fluid balance.
Adaptation of the leaf to photosynthesis: Leaves have several adaptations for efficient photosynthesis. One key adaptation is their thin, broad shape which maximizes surface area exposure to sunlight for photosynthesis. This adaptation allows leaves to capture more light energy.
Theories explaining the opening and closing of stomata: Stomata open and close in response to environmental cues. The two main theories are the potassium ion accumulation theory and the turgor pressure theory. The former explains that accumulation of potassium ions leads to water influx and stomatal opening, while the latter states that changes in turgor pressure cause stomatal movements.
Function of the human nephron: The human nephron is the functional unit of the kidney responsible for filtering blood and regulating fluid balance. It consists of the glomerulus, Bowman's capsule, convoluted tubules, and collecting ducts. The nephron plays a crucial role in waste removal, electrolyte balance, and maintaining blood pressure.
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