Explanation: Of Active Transport

Active transport was a protest.

Passive transport was the lazy river. It was the water going down the drain. It was the world falling apart into its easiest, most boring state. explanation of active transport

The sodium ion looked shocked. It had been going the wrong way, against the current. But the pump didn't care. It cracked another ATP. Heave . Another ion. Heave . Against the flow. Uphill. Spending energy like a miser spends gold. Active transport was a protest

Jamie wasn't looking at a glass of water anymore. The glass was the cell. The water was the outside environment. And inside the glass, the phone's battery icon was a tiny, red, flashing . It was the world falling apart into its

Jamie hated this room. More specifically, Jamie hated the giant, sagittal-cut model of the human cell that loomed in the corner, its cross-section painted in garish primary colors. Today, Ms. Albright was scrawling a diagram on the whiteboard: a lopsided circle with a yellow dot in the middle.

Downhill , Jamie thought, staring at the water. Easy.