BIOENERGETICS Flashcards
where does photosynthesis occur
chloroplasts in the leaves of a plant
what type of reaction is photosynthesis
endothermic
what type of energy is used in photosynthesis
light energy
word equation for photosynthesis
carbon dioxide + water —–> glucose + oxygen
define the term limiting factor
anything that limits the rate of reaction when its in short supply
give the limiting factors of photosynthesis
temperature, co2 concentration, light intensity, and amount of chlorophyll
why are limiting factors important in the economics of growing plants in greenhouses
greenhouses need to produce the maximum rate of photosynthesis while making profit
how do plants use the glucose produced in photosynthesis
- respiration
- convert it into insoluble starch for starch
- produce fat or oil for storage
- produce cellulose to strengthen cell wall
- produce amino acids for protein synthesis
define the term cellular respiration
an exothermic reaction that occurs continuously in the mitochondria of living cells to release energy from glucose
what do organisms need energy for
- chemical reactions to build larger molecules
- muscle contraction to movement
- keeping warm
what is the difference between aerobic and anaerobic respiration
aerobic respiration uses oxygen but anaerobic respiration doesn’t
word equation for aerobic respiration
glucose + oxygen —–> carbon dioxide + water
word equation for anaerobic respiration
glucose —–> lactic acid
why does aerobic respiration release more energy than anaerobic respiration
oxidation of glucose is complete in aerobic respiration and incomplete in anaerobic
what is anaerobic respiration in yeast cells called
fermentation
