BIOL 101: Environment and Society

Explore the nephron's role in kidney function, focusing on its five crucial processes. Understand filtration's non-selectivity compared to the discriminative nature of other processes. Gain insights into the kidney's intricate balance and selectivity.

Discover how filtration pressure is calculated within our bodies. Explore various options from adding capillary pressures to understanding lymphatic vessel roles. Grasp essential physiology principles as we highlight the accurate method.

Explore the definitions of tissue, organ, and organ system. Understand the distinctions and interconnectedness between these components. Get an overview of the human body's eleven major organ systems and their functions.

Explore the vital roles of pharyngeal slits in lancelets and tunicates. Learn how these clefts aid in filter-feeding, capturing food particles, and evolve through different life stages.

Unlock the secrets of ATP's essential role in powering life's processes. Discover why ATP is a specialized molecule that stores energy for your cells. Learn how to differentiate between common misconceptions and the real function of ATP.

In cell biology, the "driving ion" is a pivotal concept. It refers to ions moving from areas of high to low concentration, generating energy for various cellular transport processes. This gradient is crucial for nutrient uptake and waste elimination. Multiple processes involve a driving ion, including facilitated diffusion, symport transport, primary active transport pumps, and cotransport. Facilitated diffusion aids molecule movement along their gradient, while symport moves multiple substance