Chloroplast 3D Lab: Unveiling Photosynthesis in 3 Dimensions

Chloroplast Structure

A chloroplast is a specialized organelle found in plant cells that plays a crucial role in photosynthesis. It contains thylakoids, which are flattened membrane sacs stacked into structures called grana, and the stroma, where the Calvin cycle takes place.

The 3D lab allows you to visualize these components in detail, providing insights into their functions within the larger context of photosynthesis.

Light Reactions

During light reactions, chlorophyll molecules absorb light energy and convert it into chemical energy stored in ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate). This process occurs primarily in the thylakoid membranes of chloroplasts.

The 3D lab simulates these reactions, showing how light intensity affects the production of ATP and NADPH.

Calvin Cycle

The Calvin cycle is a series of biochemical reactions that take place in the stroma of chloroplasts. It involves the fixation of carbon dioxide into organic molecules, which are then reduced using the energy from ATP and NADPH produced during light reactions.

In the 3D lab, you can observe how varying conditions such as CO2 concentration affect the efficiency of this cycle.

Stomata and Environmental Factors

Stomata are small pores on the surface of leaves that regulate gas exchange. They play a critical role in photosynthesis by controlling the intake of carbon dioxide and release of oxygen, as well as water loss through transpiration.

The 3D lab incorporates the Farquhar-von Caemmerer-Berry model to simulate how stomatal conductance is influenced by light intensity, CO2 concentration, and temperature.

Frequently asked questions

Try it live

Everything above runs in your browser — open Chloroplast 3D Lab: Light Reactions, Calvin Cycle, Stomata and Farquhar Leaf Photosynthesis and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.