uptakes
Uptake, with the plural form uptakes, is the process by which substances are absorbed into an organism, tissue, cell, or compartment. The term covers a broad range of mechanisms that move materials from the external environment into biological systems, including nutrients, water, gases, drugs, and radiotracers.
Cellular uptake occurs through multiple pathways. Passive processes such as diffusion move molecules down concentration or
Plants, microbes, and animals depend on uptake to acquire essential resources. In plants, root uptake transports
In medicine and research, uptake describes how substances such as radiotracers, drugs, or nutrients enter tissues.
Factors influencing uptake include concentration gradients, membrane potential, transporter expression, temperature, pH, and substrate competition. Disruptions