bioenergetics- topic 4 Flashcards
what’s the formula for photosynthesis
carbon dioxide + water → glucose +oxygen
6CO2 + 6H2O → C6H12O6 + 6O2
where does photosynthesis occur in a plant cell
chloroplasts
what’s the use of chlorophyll
it captures light energy for photosynthesis
what are the five uses of glucose
- makes cellulose (makes cell walls stronger)
- makes amino acids (combines with nitrate ions to make proteins)
- makes fats (for seeds)
- stored as starch
- for respiration (releases energy)
what’s an endothermic reaction
a reaction that takes in energy from the surroundings into the reaction
what’s an exothermic reaction
a reaction that releases energy from the reaction into the surroundings
what’s a limiting factor
a factor that limits the entire reaction, found on the ‘curve’ of the graph
limiting factors of photosynthesis
- carbon dioxide concentration
- amount of chlorophyll
- light intensity
- temperature
what’s the inverse square law
light intensity = 1/distance squared
what are some uses of energy
-building larger molecules
- movement
- keeping warm
what’s the formula for aerobic respiration
glucose + oxygen -> carbon dioxide + water
C6H12O6 + 6O2 → 6CO2 + 6H2O
is aerobic respiration efficient
yes, very
what’s the site of aerobic respiration in the cell
mitochondria
what’s the formula for anaerobic respiration in animals
glucose -> lactic acid
what’s the formula for anaerobic respiration in plants
glucose -> ethanol + carbon dioxide
also called fermentation
