Hey There!__________________________________________________________________________A1)
     As per the experimental values, When the temperature decreases the time taken for the starch to be digested increases. This means that when the temperature is decreased, the metabolic rate also decreases resulting in the decrease in the rate of digestion. As we decrease the temperature everytime by the value of 
C, the rate of reaction decreases by the factor of 2.
_____________________________________A2)
     The slowest experiment was at Temperature 
C by the rate of 0.066 and The fastest experiment was at Temperature 
C by the rate of 0.32.
REASON:
The reactants must contain sufficient kinetic energy to overcome a barrier called Activation Energy. Activation energy is the minimum amount of energy required to change the reactants into products. The Fastest reaction is at high temperature because when the temperature increases the molecules collide with one another more frequently, when the kinetic energy increases, more molecules make the effective collisions due to, so more molecules make up to the threshold energy. So increase in temperature increases the rate of the reaction.
_____________________________________A3)
    The optimum temperature for enzyme amylaze is 40 degree C because it has the fastest rate of reaction at that temperature. At high temperatures the shape of the enzyme is altered so that it is no longer complementary to its specific substrate., thus optimum temperature is 40 degrees, that is the reason why human body has temperature of 40.
_____________________________________A4)
     At high temperature the shape of the enzyme is altered so that it is no longer complementary to its specific substrate. Water boils at 
C and at 100 degree C the enzyme gets denatured.
_____________________________________A4)
     At high temperature the shape of the enzyme is altered so that it is no longer complementary to its specific substrate. Water boils at C and at 100 degree C the enzyme gets denatured.
_____________________________________A5)
     Independent variable is that variable which is changed. The changing of the independent variable causes the affect on another variable which is called dependent variable. The Independent variable is Temperature and the DEPENDENT VARIABLE is rate of reaction or rate of digestion.
_____________________________________A6)
    This question is already done, the table is complete.
_____________________________________Best Regards,Borz
