.1 Photosynthesis fuels the biosphere• Photoautotrophs• feed us,• clothe us (think cotton),• house us (think wood), and• provide energy for warmth, light, transport, andmanufacturing.© 2015 Pearson Education, Inc.2019/11/194© 2015 Pearson Education, Inc.Figure 7.1© 2015 Pearson Education, Inc.Figure 7.1a© 2015 Pearson Education, Inc.Figure 7.1b2019/11/195© 2015 Pearson Education, Inc.Figure 7.1c7.1 Photosynthesis fuels the biosphere• Photosynthesis in plants takes place inchloroplasts.• Photosynthetic bacteria have infolded regions ofthe plasma membrane containing clusters ofpigments and enzymes.© 2015 Pearson Education, Inc.7.2 Photosynthesis occurs in chloroplasts inplant cells• Chlorophyll• is an important light-absorbing pigment inchloroplasts,• is responsible for the green color of plants, and• plays a central role in converting solar energy tochemical energy.© 2015 Pearson Education, Inc.2019/11/1967.2 Photosynthesis occurs in chloroplasts inplant cells• Chloroplasts are concentrated in the cells of themesophyll, the green tissue in the interior of theleaf.• Stomata are tiny pores in the leaf that allow• carbon dioxide to enter and• oxygen to exit.• Veins in the leaf deliver water absorbed by roots.