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2.6.3: Internal Energy and Enthaply - Biology

The enthalpy of reaction measures the heat released/absorbed by a reaction that occurs at constant pressure.Learning ObjectivesReview enthalpy of reactionKey PointsAt constant volume, the heat of reaction is equal to the change in the internal energy of the system.At constant pressure, the heat of reaction is equal to the enthalpy change of the system.
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6.6: Structure of the Cell Membrane - Biology

Learning ObjectivesDescribe the structure of cell membranesIdentify components of the cell membrane, including phospholipids, cholesterol, proteins, and carbohydratesCell Membranes are FluidA cell’s plasma membrane defines the boundary of the cell and determines the nature of its contact with the environment.
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Vegetable Parenchymas

Aquifer parenchyma: function of storing water What it is (definition) Parenchyma is a permanent (adult) plant tissue that originates mainly from meristems (tissue composed of fast growing cells). Main general characteristics of plant parenchyma: - They are found in all plant organs; - They have thin, thin and flexible primary walls; - have vacuoles; - Presence of schizogenic spaces (spaces between plant cells); - They present varied formats; - Parenchymal cells are not specialized.
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