https://www.khanacademy.org/science/revision-term-1-tg-biology-class-9/x55ae3f7a2ac497cf:week-1/x55ae3f7a2ac497cf:plant-tissues/v/dermal-tissue-part-1 2025-05-29T08:44:44.739717086Z Dermal Tissue Part 1 Do plants have skin like we do? Sort of! In this video, we explore the dermal tissue system in plants — focusing on the epidermis, the plant's outermost layer that wraps around roots, stems, and leaves. Here’s what you’ll learn in this video: 1. What the epidermis is and how it's structured? 2. How it protects against water loss, mechanical injury, and fungal attacks? 3. What stomata are, where they’re found (spoiler: not just on leaves), and how they help in gas exchange and transpiration? 4. The role of guard cells in opening and closing stomata. 5. Why the lower epidermis has more stomata than the upper epidermis? Bitasta Datta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Dermal Tissue Part 1 Do plants have skin like we do? Sort of! In this video, we explore the dermal tissue system in plants — focusing on the epidermis, the plant's outermost layer that wraps around roots, stems, and leaves. Here’s what you’ll learn in this video: 1. What the epidermis is and how it's structured? 2. How it protects against water loss, mechanical injury, and fungal attacks? 3. What stomata are, where they’re found (spoiler: not just on leaves), and how they help in gas exchange and transpiration? 4. The role of guard cells in opening and closing stomata. 5. Why the lower epidermis has more stomata than the upper epidermis? https://cdn.kastatic.org/ka-youtube-converted/UJ3e4gR8jUE.mp4/UJ3e4gR8jUE.mp4 557 Dermal tissue https://www.khanacademy.org/science/revision-term-1-tg-biology-class-9/x55ae3f7a2ac497cf:week-1/x55ae3f7a2ac497cf:plant-tissues/v/dermal-tissue-part-2 2025-05-22T09:37:44.828372942Z Dermal Tissue Part 2 You’ve met the plant’s outer layer — the epidermis. But did you know it also makes waxy sunscreens and grows absorbent arms? In this video, we explore how the epidermis gets clever with special structures like the cuticle and root hairs: 1. Learn how cutin (a waxy chemical) forms the cuticle, a protective layer that blocks UV rays and reduces transpiration. 2. Discover why desert plants have an extra-thick cuticle to save water. 3. Understand how root hairs grow from epidermal cells to boost water and mineral absorption This is Part 2 of our journey into dermal tissues. Whether you're wondering how plants survive the heat or slurp up water from the soil — this one’s for you! Bitasta Datta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Dermal Tissue Part 2 You’ve met the plant’s outer layer — the epidermis. But did you know it also makes waxy sunscreens and grows absorbent arms? In this video, we explore how the epidermis gets clever with special structures like the cuticle and root hairs: 1. Learn how cutin (a waxy chemical) forms the cuticle, a protective layer that blocks UV rays and reduces transpiration. 2. Discover why desert plants have an extra-thick cuticle to save water. 3. Understand how root hairs grow from epidermal cells to boost water and mineral absorption This is Part 2 of our journey into dermal tissues. Whether you're wondering how plants survive the heat or slurp up water from the soil — this one’s for you! https://cdn.kastatic.org/ka-youtube-converted/fpNQ0UOraYE.mp4/fpNQ0UOraYE.mp4 218 Dermal tissue https://www.khanacademy.org/science/grade-6-science-snc-aligned/x19bc096754f0b9af:cellular-organisation/x19bc096754f0b9af:plant-cells-and-tissues/e/dermal-tissue 2026-04-08T01:15:04.085520103Z Dermal tissue Let's practice! vibhor exercise