phosphorus cycle

Question 1

why is phosphorus an important ion, examples?

Answer 1

Pi ions make up important biological molecules such as DNA, ATP, phospholipid bilayer.

Question 2

first stage of the phosphorus cycle?

Answer 2

Pi in rocks is released into the soil, due to weathering and erosion

Question 3

second stage of the phosphorus cycle?

Answer 3

Pi ions are taken into plants and incorprated into their biomass, the rate of absorption increases due to mycrohizzae

Question 4

third stage of the phosphorus cycle?

Answer 4

Pi is transferred through the food chain and some Pi is lost through excretion and animals and plants dying

Question 5

how is Pi lost in plants and animals?

Answer 5

by saprobiants.
they secrete enzymes and digest externally absorbing the nutrients needed only

Question 6

fourth stage of the phosphorus cycle?

Answer 6

weathering of rocks releases Pi into seas and lakes and aquatic producers

Question 7

what is MYCROHIZZAE?

Answer 7

it forms a mutualistic relationship with plants and fungi

Question 8

how do plants benefit from mycrohizzae?

Answer 8

improved water uptake and inorganic ion uptake

Question 9

how do fungi benefit from mycrohizzae?

Answer 9

recieves organic compunds such as amino acids from the plants