糖酵解代谢通路图

一张垂直排列的糖酵解扁平代谢通路图，教科书风格。从顶部亮黄橙色六边形葡萄糖图标经 10 步酶促反应到底部暖红色丙酮酸。每个中间代谢物为圆角胶囊标签内的骨架结构式；酶名以斜体小字标注在反应箭头旁。左侧边距：红色 -ATP 图标标消耗步，绿色 +ATP 图标标产出步；紫色双向徽章标 NAD⁺/NADH 转变。投入阶段（1-5 步）虚线左边框标 「Hexokinase」，收益阶段（6-10 步）实线绿色左边框标 「Phosphofructokinase-1」。底部汇总框：「糖酵解代谢通路图」。白色背景，无网格，无 3D 效果。

A vertically oriented flat-design metabolic pathway diagram of glycolysis, styled after a clean biochemistry textbook figure. The layout flows top-to-bottom: starting with a hexagonal glucose molecule icon at the top (bright yellow-orange), passing through 10 enzymatic steps to pyruvate at the bottom (warm red). Each intermediate metabolite is shown as a small structural skeleton formula inside a rounded pill-shaped label with a soft grey fill. Enzyme names appear beside each reaction arrow in a smaller italic font (e.g., "Hexokinase", "Phosphofructokinase-1"). ATP consumption steps are indicated with a small red minus-ATP icon on the left margin; ATP production steps with a green plus-ATP icon. NAD⁺/NADH conversion shown with a purple double-headed badge. The investment phase (steps 1-5) is bracketed with a dashed left-side border and labelled "Energy Investment" in muted red; the payoff phase (steps 6-10) is bracketed with a solid green left-side border labelled "Energy Payoff". Net yield summary box at the bottom: "Net: 2 ATP, 2 NADH, 2 Pyruvate" in bold. White background, clean grid-free layout. No 3D effects.