Each enzyme is responsible for that particular reaction that occurs in the cell. The is where the reactant binds to enzymes. Enzymes can be reused until they becomeusually changes to pH and temperature.

speeding up /catalysing

active site

inactive /destroyed

Explanation:

littering streams           is the answer

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.