![Plant Cells with Visible Chloroplasts](/sites/default/files/styles/resource_card_image_360x300_/public/2022-03/plant_leaf_cells_closeup.jpg?itok=-KZuT8ir)
Specialized Cells of the Leaf System
Backgrounders
Learn about the structure and function of the cells in leaves.
![Seedling with sunlight](/sites/default/files/styles/resource_card_image_360x300_/public/2022-04/seedling_sunlight.jpg?itok=FWDgKDZv)
Light & Plants
Backgrounders
Learn about the process of photosynthesis and how it is affected by light levels.
![3D Illustration of human lungs](/sites/default/files/styles/resource_card_image_360x300_/public/2021-10/Human-lungs.jpg?itok=8tcxai2_)
Respiratory System in Vertebrate Animals
Backgrounders
Learn about how different animals breathe, from fish to humans.
![Leaf and the Sun](/sites/default/files/styles/resource_card_image_360x300_/public/2020-01/Plant_Functions.jpg?itok=60gbqGFi)
Plant Functions
Backgrounders
Learn about the important plant functions of photosynthesis, respiration and transpiration
![Water droplets on succulent leaves](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Succulent_leaf.jpg?itok=55kCziIw)
How Do Plants Survive in the Desert?
STEM Explained
Plants need to exchange gases and water with their environment as part of photosynthesis. Some plant cells have evolved specifically for this purpose.