Question

Effect of Substrate concentration. The average time it took to find 4 face cards at a concentration of 10% was shorter that the time it took at 90%

True

False

Hydrolysis of starch. The results of adding the iodine solution

		is to react with any starch present and turn the solution blue / black
		is to react with any starch present and turn the solution reddish brown
		is to react with your saliva and turn the solution blue / black
		to react with any glucose that has formed and turn the solution reddish brown

Effect of Substrate concentration.   The rate of hydrolysis was lowest at a face card concentration of 10%

True

False

Answer 1

Ans 1- True

The concentration of a solution is a measure of the amount of solute that has been dissolved in a given amount of solvent or solution. A concentrated solution is one that has a relatively large amount of dissolved solute.

It will easy to find face card in less concentrated medium than in more concentrated medium

Ans 2-is to react with any starch present and turn the solution blue / black

Iodine test is done to detect the pressence of starch. when starch is present iodine solution makes the solution blue

Ans 3- False

At low concentration of substrate, there is a steep increase in the rate of reaction with increasing substrate concentration. The catalytic site of the enzyme is empty, waiting for substrate to bind, for much of the time, and the rate at which product can be formed is limited by the concentration of substrate which is available.