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bioenergetics - Coggle Diagram
bioenergetics
plant tissues and organs
leaves - site of photosynthesis
roots-needed to absorb water from the soil
stem - supports plant
upper epidermis-allows sunlight to reach palisade cells
palisade mesophyll-maximise energy productioj
spongy mesophyll- air spaces allow gas exchange
lower epidermis- controls the opening of the stomata
waxy cuticle- allows light into leaf
stomata - controls gas exchange and water loss
aerobic respiration
exothermic reaction
takes place in mitochondria
transfers energy from glucose
requires glucose and oxygen
glucose + oxygen (arrow) carbon dioxide + water
C6H12 + 02 (arrow) CO2 + H2O
transpiration
xylem-transports water and minerals
xylem-made from non living cells
xylem-transports stuff from root to leaf
phloem- transports food and glucose
phloem-transports from leaf to root
phloem made of living cells
required practical
to test the effect of light intensity on the rate of photosynthesis
iv-distance between light and plant
dv-number of bubbles
cv-volume of water concentration of co2
distance between light intensity are inversely proportionate
photosynthesis
an endothermic reaction
organisms photosynthesise to get energy and grow
happens in the chloroplasts
water+carbon dioxide (arrow) glucose + oxygen
6H20 + 6CO2 (arrow) C6H12O6 + 6O2
anaerobic respiration
takes place in mitochondria
happens when there is not enough oxygen
makes lactic acid
glucose (arrow) latic acid = humans
glucose (arrow) ethanol + co2 = plants