1. Transport Across a Membrane
For a long time, no one knew that plants and animals were made of. Then, in the seventeenth century, the microscope was invented. Scientists used the microscope to study plants and animals. When sections of living things were magnified under the microscope, tiny structures could be seen for the ...
More to do with plants, in 1779 Ingenhousz would describe the carbon cycle present in plant respiration! He realized that plants gave off a flammable gas oxygen during the day but carbon dioxide at night leading him to hypothesize when carbondioxide was being released by a plant (Historic Figures 1). ...