A hand shot up. “Moving things across a membrane against the concentration gradient.”
Jamie looked at the water glass, then at the phone. For the first time, the world didn't feel like a slide into stillness. It felt like a million tiny, defiant pumps working in the dark, spending everything they had to keep the impossible thing— life —running uphill. explanation of active transport
Ms. Albright was going to get the best damn explanation of active transport she had ever seen. A hand shot up
Jamie’s eyes widened. That was the gradient. The concentration was higher outside. The molecule wanted to stay out. But the cell needed it in. defiant pumps working in the dark
Active transport was a protest.
“Correct. But what does that mean ?”