0
The activation of the heat promoting center in the brain, such as the hypothalamus, can lead to an increase in metabolic rate, muscle contractions (shivering), and peripheral vasoconstriction. These physiological responses help the body generate heat and maintain core temperature in cold environments.
What else can I help you with?
How do enzymes in your body make chemical reactions occur at safe tempertuare?
Enzymes lower the activation energy of certain types of reactions. Because energy is directly related to heat, a lower activation energy corresponds to lower heat.
Is activation of a cold pack endothermic?
Yes, the activation of a cold pack is endothermic. It absorbs heat from the surroundings in order to lower the temperature of the pack and create a cooling effect.
Why do living things use enzymes instead of a heat source of activation energy?
Living things use enzymes instead of a heat source of activation energy because they speed up chemical reactions as well as the metabolism in those living things.
In a chemical reaction a catalyst changes the 1.potential energy of the products 2.potential energy of the reactants 3. heat of reaction 4.activation energy?
A catalyst lowers the activation energy of a reaction, making it easier for the reactants to form products. It does not change the potential energy of the reactants or products, nor does it affect the overall heat of the reaction.
Why do living things use enzymes instead of heat source of activation energy?
dont know 9564489
What is a normal consequence of the activation of the heat promoting centre?
sympathetic sweat gland activation
Whats the best description of activation energy?
Activation energy is adding heat to start a reaction.
How do enzymes in your body make chemical reactions occur at safe tempertuare?
Enzymes lower the activation energy of certain types of reactions. Because energy is directly related to heat, a lower activation energy corresponds to lower heat.
What are three sources of activation energy?
Heat: Increasing the temperature of a reaction provides molecules with more kinetic energy, enabling them to overcome the activation energy barrier. Catalysts: Catalysts lower the activation energy required for a reaction, speeding up the rate of the reaction without being consumed themselves. Light: Photons can provide energy to molecules, allowing them to reach the activation energy required for the reaction.
Is activation of a cold pack endothermic?
Yes, the activation of a cold pack is endothermic. It absorbs heat from the surroundings in order to lower the temperature of the pack and create a cooling effect.
Why do living things use enzymes instead of a heat source of activation energy?
Living things use enzymes instead of a heat source of activation energy because they speed up chemical reactions as well as the metabolism in those living things.
In a chemical reaction a catalyst changes the 1.potential energy of the products 2.potential energy of the reactants 3. heat of reaction 4.activation energy?
A catalyst lowers the activation energy of a reaction, making it easier for the reactants to form products. It does not change the potential energy of the reactants or products, nor does it affect the overall heat of the reaction.
Why do living thing use enzymes instead of heat source of activation energy?
dont know 9564489
Where do chemicals get their activation energy?
It generally comes from the kinetic energy of the molecules, which is another way of saying "heat".
Why do living things use enzymes instead of heat source of activation energy?
dont know 9564489
In the chemical reaction that takes place in the lighting of a match activation energy is supplied by?
The activation energy in the chemical reaction of lighting a match is supplied by the heat generated when the match is struck against the striking surface. This heat is enough to break the chemical bonds in the match head, leading to combustion and the release of energy in the form of light and heat.
The smallest amount of energy needed to start a chemical reaction is called?
Technically, it isn't "heat" that makes a chemical reaction happen. "Heat" is merely the flow of energy from one place to another. It is the energy itself that causes a reaction to occur. As an increase in temperature occurs, there is an increase in the energy in a group of molecules by making them mover around faster and bum into each other more. This energy is called "Activation energy", and is defined as the amount of energy required to make the reaction start and carry on spontaneously. Higher activation energy implies that the reactants need more energy to start than a reaction with a lower activation energy. With that being said, activation energy is the answer
