What are the roles of chlorophyll and chloroplasts in photosynthesis?

Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform photosynthesis. magnesium is an important component of chlorophyll. the concentration of magnesium ions is higher in the root-hair cells of plants than in the soil. which mechanism of ion uptake would best enable a plant to produce a steady supply of chlorophyll? osmosis diffusion passive transport active transport

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box