Here are the essential concepts you must grasp in order to answer the question correctly.
Diffusion
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. This movement occurs due to the random motion of particles and continues until equilibrium is reached, where the concentration is uniform throughout the space. It is a fundamental concept in microbiology, as it explains how nutrients and gases are exchanged in biological systems.
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Concentration Gradient
A concentration gradient refers to the difference in the concentration of a substance between two areas. In biological contexts, this gradient drives the movement of substances across cell membranes, influencing processes such as nutrient uptake and waste removal. The steeper the gradient, the faster the rate of diffusion, making it a critical factor in cellular function.
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Concentration Gradients and Diffusion
Equilibrium
Equilibrium in the context of diffusion occurs when the concentration of a substance is equal throughout a given space, resulting in no net movement of particles. This state is essential for maintaining homeostasis in biological systems, as it ensures that cells can efficiently manage the intake of necessary substances and the expulsion of waste products.
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