photosynthesis Flashcards
what is photosynthesis
-a complex process that converts radiant energy (light) into chemical potential energy (glucose)
what happens during photosynthesis
-oxygen is released into the atmosphere during photosynthesis
-enzymes in the cells are also needed for the process
-excess glucose is converted into starch
where does photosynthesis take place
-in the chloroplasts of plants
what’s the word equation for photosynthesis
carbon dioxide + water -> (sunlight on top) (chloroplasts on bottom) -> glucose + oxygen
what are the two phases photosynthesis takes place in
-light phase (light required)
-dark phase (no light required)
what is the light phase
-takes place in the grana
-radiant energy absorbed by chlorophyll transferred into chemical energy
-photolysis
-energy rich hydrogen atoms are transferred to dark phase
-oxygen is released into atmosphere
-radiant energy cause’s energy carrier ATP to be formed
what is photolysis
-chemical energy splitting water molecules into energy rich hydrogen atoms and oxygen atoms
what is the structure of a chloroplast
-double membrane
-granum
-lamella
-strong
-lamella
what is the dark phase
-takes place in the stroma of chloroplasts
-energy rich carbohydrates (glucose) are formed
-excess glucose is stored
what is ATP
-important energy carrier in cells
-cells use ATP energy to produce important molecules and helps move substances across cell membranes
what are the factored that influence the rate of photosynthesis
-light
-carbon dioxide
-temperature
what’s the importance of photosynthesis
-food for plants and animals
-atmospheric gasses
-cellular respiration
