STEMOSPHERE
Biology
Photosynthesis
Pigments, limiting factors, photosystems, photolysis, photophosphorylation, Calvin cycle, and chloroplast adaptation.
28 min
Photosystems and the Calvin Cycle
How light energy drives electron transport and ATP/NADPH production, then powers carbon fixation in the chloroplast.
Open lesson32 min
Gene Expression
From DNA to functional RNA and protein: transcription, RNA processing, translation, and regulation of when genes are used.
Open lesson45 min
.CLIMATE CHANGE
Climate change is the long-term change in the worlds temperature and weather conditions.
Open lesson