They work like a lock and key. Each enzyme is designed to fit into a specific substrate. Well let me start by explaining what an enzyme is and then a subtrate. An enzyme is a protein that speeds up the chemical reaction in a living organism. An enzyme acts as a catalyst for specific chemical reactions, converting a specific set of reactants called substrates into specific products.
Answer:

Explanation:
To differentiate: 
Solution:
Use product rule:
and the following formulae:

![(10\,sinx\,\,cos x)'=10[(sinx)'cosx+(sinx)(cosx)']\\\\=10[cosx\,cosx-sinx\,sinx]\\\\=10[cos^2x-sin^2x]](https://tex.z-dn.net/?f=%2810%5C%2Csinx%5C%2C%5C%2Ccos%20x%29%27%3D10%5B%28sinx%29%27cosx%2B%28sinx%29%28cosx%29%27%5D%5C%5C%5C%5C%3D10%5Bcosx%5C%2Ccosx-sinx%5C%2Csinx%5D%5C%5C%5C%5C%3D10%5Bcos%5E2x-sin%5E2x%5D)
Use 

Iron can enter our bodies through meat and veggies like steaks and chicken livers and spinach. Some of the thing that boost your iron level are: beef, pork, turkey, chicken, seafoods, beans, tofo, spinach, raisins, eggs, whole grains, and fortified cereals
The answer is cytokinin.
Cytokinin is a plant hormone located in roots and fruits and it promotes cell division.
Auxin helps cytokinin in cell division, it has a great role in cell elongation.
Gibberellins are found in stems, fruits and seeds. They <span>promote flowering, cellular division, and seed growth.
</span>ABA takes part in<span> plant growth regulation and is primarily found in leaves and fruit.</span>