What does reaction mean in biology?
In summary, a chemical reaction is a process that converts one or more substances to another substance. Chemical reactions start with reactants and convert them into products. Most chemical reactions inside living things are regulated by enzymes, which speed up chemical reactions.
What is the scientific definition of a reaction?
A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products. If a physical change occurs, the physical properties of a substance will change, but its chemical identity will remain the same.
What is the definition of activation energy in biology?
Activation energy is the energy required for a reaction to occur, and determines its rate.
What is the best definition of reaction?
Definition of reaction 1a : the act or process or an instance of reacting. b : resistance or opposition to a force, influence, or movement especially : tendency toward a former and usually outmoded political or social order or policy.
What do you mean reaction?
A reaction is an action taken in response to something. If you’re telling your parents that you want to move out, you’ll see by their reaction that they’re sad about it. A reaction is often a physical in nature. A chemical reaction describes the way a chemical behaves when combined with another substance.
What is the best definition of activation energy?
The best definition of activation energy is that activation energy is the energy required to bind a substrate to an active site (option C).
What is meant by activation energy of a reaction?
activation energy, in chemistry, the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation or physical transport.
What is reaction in physical science?
A physical reaction occurs when molecules undergo a molecular rearrangement to produce a physical change. The molecules are not chemically altered. A chemical reaction occurs when molecules are chemically altered as a result of interacting with one another, such as their bonds breaking.
What is reaction with example?
The definition of a reaction is a response. An example of a reaction is someone stopping their car at a stop sign.
How is a moment different from a movement?
is a measure of its tendency to cause a body to rotate about a specific point or axis. This is different from the tendency for a body to move, or translate, in the direction of the force. In order for a moment to develop, the force must act upon the body in such a manner that the body would begin
How is the moment of force defined in math?
In order for a moment to develop, the force must act upon the body in such a manner that the body would begin to twist. The moment of force acting on an object, often called torque, is the product of the force and the distance to the object (i.e., the reference point). Moment is defined using the following formula:
Which is the turning effect of a moment?
A moment is the turning effect a force has around a point. It is basically the tendency to cause a body to rotate about a specific point or axis. This is not the same as when force is applied to a body it moves, or translates, in the direction of the force.
How are the moments of a body defined?
Moment is defined using the following formula: Moment = Force X Perpendicular Distance You must note that in equilibrium moments total to zero. In other words for a body or particle in equilibrium the total moments either way must be equal.