🦊 In this GCSE Biology video, we discuss transpiration in plants, explaining that it results from the evaporation of water from the leaves when stomata are open for carbon dioxide intake during photosynthesis. Factors like temperature, air movement, and light intensity increase transpiration by accelerating evaporation and photosynthesis rates. The video also addresses how conditions like increased humidity can decrease transpiration by reducing the concentration gradient for diffusion. Additionally, it highlights plant adaptations for minimizing water loss, such as cacti having photosynthetic stems and small surface area to volume ratios, and marram grass having rolled leaves and pitted stomata to reduce the surface area for evaporation. Understanding these processes and adaptations is crucial for explaining transpiration and related concepts in exams.

👋 Hi, we’re Launchpad Learning. We’re the same team behind SnapRevise, the UK’s leading A-level revision platform. For the last 2 years, we’ve been working behind the scenes on creating the UK’s smartest and most fun GCSE revision platform which will be available soon.

👉 Subscribe to our channel to stay in the loop about our launch date [ Ссылка ]

свернуть