Opening your next discovery…
Opening your next discovery…
How does air reach the living cells inside a leaf?
A prediction is a starting idea. You can revise it after exploring.
Use at least 40 characters and include an observation. Your writing is saved as evidence; it is not automatically judged for accuracy.
This records completion of this demonstration. It is not an official grade or a claim of mastery.
This is an original Bodhi learning activity. Official references establish its curriculum context, rather than endorsement of the simulation or complete syllabus coverage.
Full chapter text; printed pp. 137–152. Chapter text inspected for this mapped objective; activities are original Bodhi designs, not reproduced NCERT tasks. Inspected scope: chapter.
Source checked · 2026-10-2130.4, leaf anatomy. Scientific reference inspected for broad eudicot leaf structure, epidermis, mesophyll, transport tissues and stomata. This is a scientific reference, not CBSE grade placement. Geometry and wording are original; no figure or mesh copied.
Source checked · 2026-10-21Original activities, questions, reading passages and fictional archives. A curricular connection does not make a Bodhi activity an official NCERT exercise. Broader grade adaptation awaits educator review.
Mapping under review · 2026-10-21Turn a leaf, enlarge its lower surface, then move inside to connect light capture, transport and gas exchange.
Follow the midrib into branching veins across the blade. Numbered labels match the structure list.
Preparing original 3D geometry…
Enlarged schematic · Not to scaleDrag to orbit. Pinch or use the zoom buttons to enlarge. Two-finger drag pans on touch devices; right-drag pans with a mouse. Focus the 3D view and use arrow keys to rotate, +/− to zoom, Shift + arrow keys to pan, and Home to reset the camera. Every selectable structure is also a button below.
Select a structure in the model or the list to connect its position, shape and function.
Follow the midrib into branching veins across the blade.
Move through the structures in an order that connects their roles.
An original schematic of a broad eudicot leaf, not a scan or a named species. The three views use different enlargements. Cell numbers, colours and layer thicknesses are not to scale. The cutaway opens tissues that are normally enclosed; the blue wire outline marks an air space rather than a solid structure. Stomatal placement and leaf tissues vary between plants. Detailed tissue names extend the basic leaf and nutrition lesson.
This is a spatial learning model. Colour, transparency and layer separation help reveal relationships; they are not measurements.
Structure investigation: 0/3. Inspect spongy mesophyll in the internal section, then the stomatal pore and guard cells in either detailed view. Use the model or structure buttons; both routes count.
Build a fair comparison. Can a wider opening offer more gas exchange while conserving just as much water?
30 exchange opportunity index
18.0 water-loss index
Original comparison rules: exchange index = opening; water-loss index = opening × dryness ÷ 100. Both are uncalibrated indices, not measured rates. Temperature, light, wind, water supply and active guard-cell responses are held outside this model. This process sketch is separate from the structural 3D views.
| Opening | Dryness | Exchange | Water loss |
|---|