National Institute of Educational Technologies and Teacher Training (Spain)
Ministerio De Educacion: Microbiologia 2 Bachillerato
This unit will allow you to have a broader idea about microorganism, people and the ecosystem. It contains 16 interactive activities.
Wikimedia
Wikipedia: Chloroplast
Wikipedia provides excellent information on chloroplasts, organelles found in plant cells and eukaryotic algae which conduct photosynthesis.