Two Models for Enzyme/Substrate Interactions:
Active site:
1) During the enzyme action, there is a temporary combination between the enzyme and its substrate forming enzyme-substrate complex. This occurs at active site of enzyme.
2) This is followed by dissociation of this complex into enzyme again and products.

                                             Cellular mechanisms of regulation of acid-base

cellular mechanisms of maintaining constancy of hydrogen ions concentration in extra-cellular fluid:

The body contains a large variety of ions, or electrolytes, which perform a variety of functions. Some ions assist in the transmission of electrical impulses along cell membranes in neurons and muscles. Other ions help to stabilize protein structures in enzymes. Still others aid in releasing hormones from endocrine glands.

يتضمن هذا الملف الجوانب النظرية الاولية لمحاسبة التكاليف 1 ، مثل :- تعريف واهداف ووظائف محاسبة التكاليف ، علاقة محاسبة التكاليف بالعلوم الاخرى وبالمحاسبة المالية ، طرق تبويب عناصر التكاليف ، الخطوات اللازمة لوظع نظام محاسبي كلفوي . 

                                                                            hyperacidity

Sometimes stomach produces too much acid. It causes stomach acidity also called hyperacidity. Symptoms of this disease are feeling burning sensation throughout the gastro intestinal track. These feelings sometimes extend towards the chest, that is called heart burning.

C++ Files and Streams
So far, we have been using the iostream standard library, which provides cin and cout methods for reading from standard input and writing to standard output respectively.
This tutorial will teach you how to read and write from a file. This requires another standard C++ library called fstream, which defines three new data types −

C++ provides following two types of string representations −
• The C-style character string.
• The string class type introduced with Standard C++.

C++ provides a data structure, the array, which stores a fixed-size sequential collection of elements of the same type. An array is used to store a collection of data, but it is often more useful to think of an array as a collection of variables of the same type.
Instead of declaring individual variables, such as number0, number1, ..., and number99, you declare one array variable such as numbers and use numbers[0], numbers[1], and ..., numbers[99] to represent individual variables. A specific element in an array is accessed by an index.

Normally, when we work with Numbers, we use primitive data types such as int, short, long, float and double, etc. The number data types, their possible values and number ranges have been explained while discussing C++ Data Types.

A function is a group of statements that together perform a task. Every C++ program has at least one function, which is main(), and all the most trivial programs can define additional functions.
You can divide up your code into separate functions. How you divide up your code among different functions is up to you, but logically the division usually is such that each function performs a specific task.
A function declaration tells the compiler about a function's name, return type, and parameters. A function definition provides the actual body of the function.