https://emsenn.net/tags/gas-exchange/ Recent content in Gas-Exchange on emsenn.net Hugo en Sat, 28 Mar 2026 00:00:00 +0000 https://emsenn.net/library/domains/science/domains/biology/texts/stomatal-biology/ Sat, 28 Mar 2026 00:00:00 +0000 https://emsenn.net/library/domains/science/domains/biology/texts/stomatal-biology/ <h2 id="assumed-audience"><a href="#assumed-audience" class="heading-anchor" aria-label="Link to this section">¶</a>Assumed audience </h2> <p>Someone familiar with basic cell biology and plant anatomy who wants the specific molecular, quantitative, and ecological details of stomatal function.</p> <hr> <h2 id="1-guard-cell-mechanics"><a href="#1-guard-cell-mechanics" class="heading-anchor" aria-label="Link to this section">¶</a>1. Guard Cell Mechanics </h2> <h3 id="basic-anatomy"><a href="#basic-anatomy" class="heading-anchor" aria-label="Link to this section">¶</a>Basic anatomy </h3> <p>Each stoma consists of a pore flanked by two kidney-shaped guard cells (in dicots) or dumbbell-shaped guard cells (in grasses/monocots). Guard cells are the only epidermal cells that contain chloroplasts.</p> https://emsenn.net/library/domains/science/domains/biology/domains/botany/terms/stomata/ Fri, 06 Mar 2026 00:00:00 +0000 https://emsenn.net/library/domains/science/domains/biology/domains/botany/terms/stomata/ <p>Stomata are microscopic pores on the surfaces of leaves and other aerial plant organs, each bounded by a pair of specialized guard cells. By changing shape — swelling to open the pore or deflating to close it — guard cells regulate the exchange of gases between the plant&rsquo;s interior and the atmosphere. When stomata open, carbon dioxide enters the leaf for <a href="../concepts/photosynthesis-as-relation.md" class="link-internal">photosynthesis</a> and oxygen exits. Simultaneously, water vapor escapes through transpiration, which drives the upward movement of water through the <a href="./xylem.md" class="link-internal">xylem</a>.</p>