paper 1 dont know Flashcards
bright light
inner circular muscles
dim light
outer radial contract
thyroxine too high
detected by hypothalamus
inhibit release of TRH
pituitary stops release of TSH
thyroxine no longer released
return to ideal
animal vs plant stem cells
animals lose differentiation ability young
plants differentiate throughout life
nitrates mineral
causes protein synthesis
nitrates deficiency
no growth and yellow leaves
phosphates mineral
make DNA and cell membrane
phosphates deficiency
no root growth
discoloured
potassium mineral
make rnzymes
potassium deficiency
poor fruit
discoloured
magnesium mineral
make chlorophyll
magnesium deficiency
yellow leaves
alcohol liver damage
breakdown causes toxins
which cause cirrhosis
prevents eggs freezing
antifreeze protein
why raise blood pressure of patients who lose blood
maintain rate of flow of blood
maintain transport of minerals
